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aa - Qafár af
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ace - Acèh
ady - адыгабзэ
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ami - Pangcah
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arc - ܐܪܡܝܐ
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ban - Basa Bali
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crh-latn - qırımtatarca (Latin)
cs - čeština
csb - kaszëbsczi
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cv - чӑвашла
cy - Cymraeg
da - dansk
dag - dagbanli
de - Deutsch
de-at - Österreichisches Deutsch
de-ch - Schweizer Hochdeutsch
de-formal - Deutsch (Sie-Form)
dga - Dagaare
din - Thuɔŋjäŋ
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ee - eʋegbe
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el - Ελληνικά
eml - emiliàn e rumagnòl
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gom-deva - गोंयची कोंकणी
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ike-cans - ᐃᓄᒃᑎᑐᑦ
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kk-cn - قازاقشا (جۇنگو)
kk-cyrl - қазақша (кирил)
kk-kz - қазақша (Қазақстан)
kk-latn - qazaqşa (latın)
kk-tr - qazaqşa (Türkïya)
kl - kalaallisut
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kn - ಕನ್ನಡ
ko - 한국어
ko-kp - 조선말
koi - перем коми
kr - kanuri
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ks-arab - کٲشُر
ks-deva - कॉशुर
ksh - Ripoarisch
ksw - စှီၤ
ku - kurdî
ku-arab - كوردي (عەرەبی)
ku-latn - kurdî (latînî)
kum - къумукъ
kus - Kʋsaal
kv - коми
kw - kernowek
ky - кыргызча
la - Latina
lad - Ladino
lb - Lëtzebuergesch
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lez - лезги
lfn - Lingua Franca Nova
lg - Luganda
li - Limburgs
lij - Ligure
liv - Līvõ kēļ
lki - لەکی
lld - Ladin
lmo - lombard
ln - lingála
lo - ລາວ
loz - Silozi
lrc - لۊری شومالی
lt - lietuvių
ltg - latgaļu
lus - Mizo ţawng
luz - لئری دوٙمینی
lv - latviešu
lzh - 文言
lzz - Lazuri
mad - Madhurâ
mag - मगही
mai - मैथिली
map-bms - Basa Banyumasan
mdf - мокшень
mg - Malagasy
mh - Ebon
mhr - олык марий
mi - Māori
min - Minangkabau
mk - македонски
ml - മലയാളം
mn - монгол
mni - ꯃꯤꯇꯩ ꯂꯣꯟ
mnw - ဘာသာ မန်
mo - молдовеняскэ
mos - moore
mr - मराठी
mrh - Mara
mrj - кырык мары
ms - Bahasa Melayu
ms-arab - بهاس ملايو
mt - Malti
mus - Mvskoke
mwl - Mirandés
my - မြန်မာဘာသာ
myv - эрзянь
mzn - مازِرونی
na - Dorerin Naoero
nah - Nāhuatl
nan - Bân-lâm-gú
nap - Napulitano
nb - norsk bokmål
nds - Plattdüütsch
nds-nl - Nedersaksies
ne - नेपाली
new - नेपाल भाषा
ng - Oshiwambo
nia - Li Niha
niu - Niuē
nl - Nederlands
nl-informal - Nederlands (informeel)
nmz - nawdm
nn - norsk nynorsk
no - norsk
nod - ᨣᩤᩴᨾᩮᩬᩥᨦ
nog - ногайша
nov - Novial
nqo - ߒߞߏ
nrm - Nouormand
nso - Sesotho sa Leboa
nv - Diné bizaad
ny - Chi-Chewa
nyn - runyankore
nys - Nyunga
oc - occitan
ojb - Ojibwemowin
olo - livvinkarjala
om - Oromoo
or - ଓଡ଼ିଆ
os - ирон
pa - ਪੰਜਾਬੀ
pag - Pangasinan
pam - Kapampangan
pap - Papiamentu
pcd - Picard
pcm - Naijá
pdc - Deitsch
pdt - Plautdietsch
pfl - Pälzisch
pi - पालि
pih - Norfuk / Pitkern
pl - polski
pms - Piemontèis
pnb - پنجابی
pnt - Ποντιακά
prg - prūsiskan
ps - پښتو
pt - português
pt-br - português do Brasil
pwn - pinayuanan
qqq - Message documentation
qu - Runa Simi
qug - Runa shimi
rgn - Rumagnôl
rif - Tarifit
rki - ရခိုင်
rm - rumantsch
rmc - romaňi čhib
rmy - romani čhib
rn - ikirundi
ro - română
roa-tara - tarandíne
rsk - руски
ru - русский
rue - русиньскый
rup - armãneashti
ruq - Vlăheşte
ruq-cyrl - Влахесте
ruq-latn - Vlăheşte
rw - Ikinyarwanda
ryu - うちなーぐち
sa - संस्कृतम्
sah - саха тыла
sat - ᱥᱟᱱᱛᱟᱲᱤ
sc - sardu
scn - sicilianu
sco - Scots
sd - سنڌي
sdc - Sassaresu
sdh - کوردی خوارگ
se - davvisámegiella
se-fi - davvisámegiella (Suoma bealde)
se-no - davvisámegiella (Norgga bealde)
se-se - davvisámegiella (Ruoŧa bealde)
sei - Cmique Itom
ses - Koyraboro Senni
sg - Sängö
sgs - žemaitėška
sh - srpskohrvatski / српскохрватски
sh-cyrl - српскохрватски (ћирилица)
sh-latn - srpskohrvatski (latinica)
shi - Taclḥit
shi-latn - Taclḥit
shi-tfng - ⵜⴰⵛⵍⵃⵉⵜ
shn - ၽႃႇသႃႇတႆး
shy - tacawit
shy-latn - tacawit
si - සිංහල
simple - Simple English
sjd - кӣллт са̄мь кӣлл
sje - bidumsámegiella
sk - slovenčina
skr - سرائیکی
skr-arab - سرائیکی
sl - slovenščina
sli - Schläsch
sm - Gagana Samoa
sma - åarjelsaemien
smn - anarâškielâ
sms - nuõrttsääʹmǩiõll
sn - chiShona
so - Soomaaliga
sq - shqip
sr - српски / srpski
sr-ec - српски (ћирилица)
sr-el - srpski (latinica)
srn - Sranantongo
sro - sardu campidanesu
ss - SiSwati
st - Sesotho
stq - Seeltersk
sty - себертатар
su - Sunda
sv - svenska
sw - Kiswahili
syl - ꠍꠤꠟꠐꠤ
szl - ślůnski
szy - Sakizaya
ta - தமிழ்
tay - Tayal
tcy - ತುಳು
tdd - ᥖᥭᥰᥖᥬᥳᥑᥨᥒᥰ
te - తెలుగు
tet - tetun
tg - тоҷикӣ
tg-cyrl - тоҷикӣ
tg-latn - tojikī
th - ไทย
ti - ትግርኛ
tk - Türkmençe
tl - Tagalog
tly - tolışi
tly-cyrl - толыши
tn - Setswana
to - lea faka-Tonga
tok - toki pona
tpi - Tok Pisin
tr - Türkçe
tru - Ṫuroyo
trv - Seediq
ts - Xitsonga
tt - татарча / tatarça
tt-cyrl - татарча
tt-latn - tatarça
tum - chiTumbuka
tw - Twi
ty - reo tahiti
tyv - тыва дыл
tzm - ⵜⴰⵎⴰⵣⵉⵖⵜ
udm - удмурт
ug - ئۇيغۇرچە / Uyghurche
ug-arab - ئۇيغۇرچە
ug-latn - Uyghurche
uk - українська
ur - اردو
uz - oʻzbekcha / ўзбекча
uz-cyrl - ўзбекча
uz-latn - oʻzbekcha
ve - Tshivenda
vec - vèneto
vep - vepsän kel’
vi - Tiếng Việt
vls - West-Vlams
vmf - Mainfränkisch
vmw - emakhuwa
vo - Volapük
vot - Vaďďa
vro - võro
wa - walon
wal - wolaytta
war - Winaray
wls - Fakaʻuvea
wo - Wolof
wuu - 吴语
xal - хальмг
xh - isiXhosa
xmf - მარგალური
xsy - saisiyat
yi - ייִדיש
yo - Yorùbá
yrl - Nhẽẽgatú
yue - 粵語
za - Vahcuengh
zea - Zeêuws
zgh - ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ
zh - 中文
zh-cn - 中文(中国大陆)
zh-hans - 中文(简体)
zh-hant - 中文(繁體)
zh-hk - 中文(香港)
zh-mo - 中文(澳門)
zh-my - 中文(马来西亚)
zh-sg - 中文(新加坡)
zh-tw - 中文(臺灣)
zu - isiZulu
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{{DISPLAYTITLE:Ambiente de trabjo A2plus}}<languages/> [[Image:A2p_workbench.svg|thumb|128px|El icono del Ambiente de trabajo A2plus]] <span id="Introduction"></span> == Introducción == {{TOCright}} El ambiente de trabajo A2plus es un [[External workbenches/es|Ambiente de trabajo externo]] para [[Assembly/es|ensamble]] diferentes piezas en FreeCAD. <div class="mw-translate-fuzzy"> Esta documentación describe la versión de A2plus '''0.4.47 o más reciente'''. </div> <span id="Installing"></span> == Instalación == El ambiente de trabajo A2plus es un complemento de FreeCAD. Se puede instalar fácilmente a través del [[Image:AddonManager.svg|24px]] de FreeCAD [[Std_AddonMgr/es|Administrador de complementos]] desde el menú {{MenuCommand|Herramientas → Administrador de complementos}}. A2plus está en desarrollo activo y obtendrá nuevas características con frecuencia. Por lo tanto, debería actualizarlo regularmente utilizando también el menú {{MenuCommand|Herramientas → [[Std_AddonMgr/es|Administrador de complementos]]}}. El código de A2plus está alojado y desarrollado [https://github.com/kbwbe/A2plus en GitHub] y también puede ser instalado manualmente copiándolo en el directorio {{FileName|Mod}} de FreeCAD. <span id="Getting_Started"></span> == Cómo empezar == Primero cambia a la barra de herramientas A2plus en FreeCAD. Para crear un ensamblaje crea un nuevo archivo en FreeCAD. Al principio este archivo necesita ser guardado. Se recomienda (pero no es necesario) guardarlo en la misma carpeta de las piezas que quieres ensamblar. Ahora se pueden añadir piezas al ensamblaje utilizando el botón de la barra de herramientas [[Image:A2p ImportPart.svg|24px]] o [[Image:A2p ShapeReference.svg|24px]]. El botón [[Image:A2p ImportPart.svg|24px]] añade todos los cuerpos del archivo seleccionado como una sola pieza. Cuando se utiliza el botón [[Image:A2p ShapeReference.svg|24px]] se puede elegir qué parte de un archivo debe ser importada como parte. De esta forma se puede, por ejemplo, importar sólo un boceto para ensamblar otras piezas utilizando el boceto para determinar las posiciones de las piezas. La primera parte añadida obtiene una posición fija por defecto. (Puede cambiar esto más tarde a través de la propiedad de la parte {{PropertyData|Posición fija}}.) Parts that are already in the assembly can be cloned with the toolbar button [[Image:A2p_DuplicatePart.svg|24px]]. To edit a part from the assembly, select it in the model tree and use the toolbar button [[Image:A2p EditPart.svg|24px]]. This will open the part into a new tab in FreeCAD or switch to its tab if the file is already opened. To update changed parts in assemblies click on the toolbar button [[Image:A2p_ImportPart_Update.svg|24px]]. The toolbar button [[File:A2p_RecursiveUpdate.svg|24px]] imports parts too but recursively over possible [[#Subassemblies|subassemblies]]. If you select one or some parts in FreeCAD's the tree view, A2plus will ask you to only update the selected parts. Imported parts will keep their external dependencies and can be edited. For well-defined parts like screws it is however useful that their shape cannot be edited. This can be achieved with the toolbar button [[Image:A2p ConvertPart.svg|24px]] that converts the selected part to a static copy of the original part. To save the assembly and close it afterwards, the toolbar button [[Image:A2p Save and exit.svg|24px]] can be used. Toggling the toolbar button [[Image:A2p CD_OneButton.svg|24px]] sets the way you can select several several edges, faces etc.: Either with a single click or by {{KEY|Ctrl}}+click. <span id="Assembling"></span> == Ensamblaje == Assembling parts is done by adding constraints between parts. After a constraint A2plus will move the parts according to the constraint if possible. To create a constraint between parts, keep the {{KEY|Ctrl}} key pressed and select each an edge or face of two parts. Then click the toolbar button of the desired constraint. A dialog will pop up that is descried in section [[#Constraints|Constraints]]. The constraint will be added in the model tree attached to the affected parts. For complex constraints between parts A2plus might fail to solve the constraints. Therefore also have a look at section [[#Troubleshooting|Troubleshooting]] for strategies to resolve such cases. <span id="Keeping_track"></span> === Mantenga el vista general === The more parts you add, the more important it is to keep track. A2plus therefore offers these tools to move and view parts: * To move a part around in the assembly, select it in the model tree and use the toolbar button [[Image:A2p MovePart.svg|24px]]. When you placed the part where you like it, left-click with the mouse. If the moved part already has constraints it will be placed accordingly by pressing the toolbar button [[Image:A2p solver.svg|24px]] because this triggers to resolve all constraints of the assembly. * To show a constraint select it in the model tree and use the toolbar button [[Image:A2p ViewConnection.svg|24px]]. This will make the whole assembly transparent and highlight the two objects that are connected via the constraint. To go back to the normal view, left-click into the assembly. * To show only certain parts in the assembly, select these parts in the model tree and use the toolbar button [[Image:A2p Isolate Element.svg|24px]]. Alternatively you can hide a certain part by selecting it in the model tree and pressing {{KEY|Space}} to toggle its visibility. * To toggle the transparency view of the whole assembly you can use the toolbar button [[Image:A2p ToggleTransparency.svg|24px]]. * Every part can be made transparent using the normal FreeCAD editing. However sometimes the transparency setting for parts is lost when reopening the assembly due to a bug in FreeCAD. As workaround you can use the toolbar button [[Image:A2p_Restore_Transparency.svg|24px]] to restore the transparency settings. <span id="Constraints"></span> == Restricciones == When creating a constraint such a dialog will be displayed after you pressed a constraint toolbar button: [[Image:A2p_ConstraintPropertiesDialog.png]] {{Caption|Above: The A2plus Constraint Properties Dialog}} For certain constraints it allows you to modify the constraint direction. With the button {{Button|[[Image:A2p solver.svg|24px]] Solve}} you can check beforehand if this new constraint can be solved by A2plus. If not, have a look at section [[#Troubleshooting|Troubleshooting]]. Constraints can be disabled by changing its [[Std_ToggleVisibility|visibility]]. This is done by selecting the constraint in the tree view and pressing {{KEY|Space}}. This toggles the property {{PropertyData|Suppressed}}. A suppressed constraint is not taken into account when the assembly is solved. A2plus provides the following constraints: ==== Point on Point ==== Select either a [[Glossary#Vertex|vertex]] (point), circle or sphere on each part. If a circle or sphere was selected, its center point will be used for the constraint. The toolbar button [[Image:A2p PointIdentity.svg|24px]] adds the constraint {{Variable|pointIdentity}} that make the vertices coincident. <span id="Point_on_Line"></span> ==== Punto en la línea ==== Select a [[Glossary#Vertex|vertex]] (point), or circular [[Glossary#Edge|edge]] (will select its center point), or a spherical [[Glossary#Face|face]] (will also select its center point) on one part and an [[Glossary#Edge|edge]] on the other part. The toolbar button [[Image:A2p PointOnLineConstraint.svg|24px]] adds the constraint {{Variable|pointOnLine}}. It will put the vertex on the edge. <span id="Point_on_Plane"></span> ==== Punto en el plano ==== Select a [[Glossary#Vertex|vertex]] (point), or circular [[Glossary#Edge|edge]] (will select its center point), or a spherical [[Glossary#Face|face]] (will also select its center point) on one part and a plane on the other part. The toolbar button [[Image:A2p PointOnPlaneConstraint.svg|24px]] adds the constraint {{Variable|pointOnPlane}}. The constraint dialog allows you to specify an offset between the point and the plane. This offset can also be flipped between both sides of the plane. If the offset is zero, the constraint will put the vertex on the plane. <span id="Sphere_on_Sphere"></span> ==== Esfera sobre Esfera ==== Select either a spherical [[Glossary#Face|face]] or a [[Glossary#Vertex|vertex]] (point) on both parts. The toolbar button [[Image:A2p SphericalSurfaceConstraint.svg|24px]] adds the constraint {{Variable|sphereCenterIdent}}. It will either make the center of the spheres, the center of the sphere and the vertex, or the vertices coincident. ==== Circular Edge on Circular Edge ==== Select a circular [[Glossary#Edge|edge]] on both parts. The toolbar button [[Image:A2p CircularEdgeConstraint.svg|24px]] adds the constraint {{Variable|circularEdge}}. The constraint dialog allows you to specify an offset between the edges. This offset can also be flipped. You can furthermore set the constraint direction and lock the rotation of the parts. If the offset is zero, the constraint will put the edges concentric in the same plane. ==== Axis Coincident ==== Select either a cylindrical [[Glossary#Face|face]] or a linear [[Glossary#Edge|edge]] on both parts. The toolbar button [[Image:A2p AxialConstraint.svg|24px]] adds the constraint {{Variable|axisCoincident}}. The constraint dialog allows you to specify the axis direction. The dialog allows you furthermore to lock the rotation of the parts. The constraint will make the axes or lines coincident. ==== Axis Parallel ==== Select either a cylindrical [[Glossary#Face|face]] or a linear [[Glossary#Edge|edge]] on both parts. The toolbar button [[Image:A2p AxisParallelConstraint.svg|24px]] adds the constraint {{Variable|axisParallel}}. The constraint dialog allows you to specify the axis direction. The constraint will make the axes or lines parallel. ==== Axis on Plane parallel ==== Select either a cylindrical [[Glossary#Face|face]] or a linear [[Glossary#Edge|edge]] on one part and a plane on the other part. The toolbar button [[Image:A2p AxisPlaneParallelConstraint.svg|24px]] adds the constraint {{Variable|axisPlaneParallel}}. The constraint will make the axis or line parallel to the plane. ==== Axis on Plane normal ==== Select either a cylindrical [[Glossary#Face|face]] or a linear [[Glossary#Edge|edge]] on one part and a plane on the other part. The toolbar button [[Image:A2p AxisPlaneNormalConstraint.svg|24px]] adds the constraint {{Variable|axisPlaneNormal}}. The constraint will make the axis or line normal to the plane. ==== Axis on Plane angle==== Select either a cylindrical [[Glossary#Face|face]] or a linear [[Glossary#Edge|edge]] on one part and a plane on the other part. The toolbar button [[Image:A2p AxisPlaneAngleConstraint.svg|24px]] adds the constraint {{Variable|axisPlaneAngle}}. The constraint will at first make the axis parallel to the plane. Then you can adjust the angle for the axis in the appearing constraint settings dialog. ==== Plane Parallel ==== Select a plane on both parts. The toolbar button [[Image:A2p PlanesParallelConstraint.svg|24px]] adds the constraint {{Variable|planesParallel}}. The constraint dialog allows you to specify the constraint direction. The constraint will make the planes parallel. ==== Plane on Plane ==== Select a plane on both parts. The toolbar button [[Image:A2p PlaneCoincidentConstraint.svg|24px]] adds the constraint {{Variable|planeCoincident}}. The constraint dialog allows you to specify a constraint direction and an offset between the planes. This offset can also be flipped. If the offset is zero, the constraint will make the planes coincident. ==== Plane Angular ==== Select a plane on both parts. The toolbar button [[Image:A2p AngleConstraint.svg|24px]] adds the constraint {{Variable|angledPlanes}}. The constraint dialog allows you to specify an angle between the planes. The constraint will make the planes at first parallel and the set the specified angle. ==== Coincidence at Center of Mass ==== Select either a closed [[Glossary#Edge|edge]] or a plane on both parts. The toolbar button [[Image:A2p CenterOfMassConstraint.svg|24px]] adds the constraint {{Variable|centerOfMass}}. The constraint dialog allows you to specify an offset between the edges or planes. This offset can also be flipped. You can furthermore set the constraint direction and lock the rotation of the parts. If the offset is zero, the constraint will put the edges or planes into the same plane. === Subassemblies === An assembly can contain other assemblies. They are added like parts by pressing the toolbar button [[Image:A2p ImportPart.svg|24px]] and selecting a {{FileName|*.FCStd}} file containing an assembly. Such subassemblies can also be edited like parts using the toolbar button [[Image:A2p EditPart.svg|24px]]. Please make sure for higher assembly stages that you update the assembly recursively via the toolbar button [[File:A2p_RecursiveUpdate.svg|24px]] when there were changes. == Constraint Handling == Possible constraints for a selection are displayed in the toolbar and the ''Constraint Tools'' dialog by enabling the corresponding buttons. The ''Constraint Tools'' dialog is opened via the toolbar button [[Image:A2p DefineConstraints.svg|24px]]. It is intended to stay open to be able to add quickly several constraints to the assembly. Existing constraints can be edited by selecting them in the model tree and then either double-clicking on it or using the toolbar button [[Image:A2p EditConstraint.svg|24px]]. This opens the ''Constraint Properties'' dialog. Constraints can be temporarily suppressed by selecting them in the model tree and changing the tree element property {{PropertyData|Suppressed}}. Constraints can be deleted either by selecting them in the model tree and pressing {{KEY|Del}} or by selecting a part with constraints in the model tree and using the toolbar button [[Image:A2p DeleteConnections.svg|24px]]. All constraints can be resolved at any time with the toolbar button [[Image:A2p solver.svg|24px]]. If the toolbar button [[Image:A2p ToggleAutoSolve.svg|24px]] is turned on a resolve is automatically done after every edit of a constraint. The toolbar button [[Image:A2p FlipConstraint.svg|24px]] affects the constraint that was added most recently. It flips the constraint direction. With the [[Image:A2p CD_ConstraintViewer.svg|24px]] tool, it is possible the show and inspect existing constraints. After clicking it a dialog pops up. Then either select a part in the tree and click the button {{Button|Import from part}} to get all constraints of this part, or select one or more constraints in the tree and click the button {{Button|Import from Tree}}. As result you get all info about the constraints. By clicking in the column ''Suppress'' a single constraint can be suppressed. For more features, follow the tooltips of the other dialog buttons. == Part Lists == To create part lists of assemblies, the different parts of the assembly must get part info that can be read by A2plus. This is done by editing the part using the toolbar button [[Image:A2p EditPart.svg|24px]]. In the opened part press the toolbar button [[Image:A2p PartsInfo.svg|24px]] and a [[Spreadsheet_Workbench|spreadsheet]] with the name ''#PARTINFO#'' is created. The structure of the spreadsheet is like this: [[Image:A2p PartinfoTable.png]] Fill out the grey fields with info you have and want to have in the final parts list. In the assembly or subassembly use the toolbar button [[Image:A2p PartsList.svg|24px]]. It will ask you if you want to iterate recursively over all subassemblies. Click on ''Yes''. This creates a new spreadsheet with the name ''#PARTSLIST#''. It contains the info from the different ''#PARTSINFO#'' spreadsheets of the parts in a list like this: [[Image:A2p PartslistTable.png]] The position (POS) is automatically set according to the appearance of the parts in the model tree. The top level part will get POS 1. The quantity (QTY) is automatically calculated from the assembly. If a parts is twice in the assembly it will get QTY 2. If you have updated a part info you can refresh the parts list by pressing the toolbar button [[Image:A2p PartsList.svg|24px]] again. For subassemblies you can also create an info spreadsheet using the toolbar button [[Image:A2p PartsInfo.svg|24px]]. When you create or update the parts list of the main assembly this info will be used if you click on ''No'' for the question if you want to iterate recursively over all subassemblies. Then the different parts are not in the parts list but only the subassemblies. == Special Features == === Assembly Structure === The toolbar button [[Image:A2p Treeview.svg|24px]] creates an HTML file with the structure of your assembly. The file will by default be created in the folder of your assembly file. The structure looks like this: :[[Image:A2p Dependency-Tree.jpg]] === Degrees of Freedom === The button [[Image:A2p DOFs.svg|24px]] labels every part of the assembly with its degrees of freedom. Furthermore it outputs a list with all parts and their dependencies. The list is output into FreeCAD's widget ''Report view''. If this widget is currently not visible, it can either be shown by right-clicking into an empty part of the FreeCAD toolbar area and then choosing it in the appearing context menu or with the menu {{MenuCommand|View → Panels → [[Report view|Report view]]}}. The degrees of freedom labels can be removed by clicking the button [[Image:A2p DOFs.svg|24px]] again. === Part Labels === The button [[Image:A2p PartLabel.svg|24px]] labels every part of the assembly in the 3D view with its name. The part labels can be removed by clicking the button [[Image:A2p PartLabel.svg|24px]] again === Shape of whole Assembly === Sometimes it is necessary to have the whole assembly combined as one shape. This shape can then for example be used for 3D printing in the [[Mesh_Workbench|Mesh workbench]] or for drawings in the [[TechDraw_Workbench|TechDraw workbench]]. It is created using the toolbar button [[Image:A2p_SimpleAssemblyShape.svg|24px]]. The shape is by default not made visible. Use the same toolbar button to update the shape in case of changes in the assembly. === Convert absolute Paths to relative Ones === With the menu {{MenuCommand|A2plus → Misc → [[File:A2p_SetRelativePathes.svg|24px]] Convert absolute paths of imported parts to relative ones}} you can convert absolute paths of imported parts to relative ones. == Preferences == The a2plus preferences can be accessed via FreeCAD's menu {{MenuCommand|Edit → [[Preferences_Editor|Preferences]]}} and there in the section ''A2plus''. You can set the following options: === Default solving method === ; Use solving of partial systems : The solver begins with a part that has the property {{PropertyData|fixed Position}} set to ''true'' and a part constrained to it. All other parts are not calculated. If a solution could be found, the next constrained part is added to the calculation and so on. ; Use "magnetic" solver, solving all parts at once : The solver tries to move all parts at once in direction to a part that has the property {{PropertyData|fixed Position}} set to ''true''. Note that this will in most cases take more time for the calculation of a solution. ; Force fixed position : This sets the property {{PropertyData|fixed Position}} to ''true'' for all parts in the assembly. Then no calculation is actually performed since all parts will always be fixed to the positions where they were created. === Default solver behaviour === ; Solve automatically if a constraint property is changed : The solver will automatically be started. The same as turning on the toolbar button [[Image:A2p ToggleAutoSolve.svg|24px]]. === Behaviour when updating imported parts === ; Recalculate imported parts before updating them : All parts of the assembly, including subassemblies, will be opened in FreeCAD to be reconstructed using values from spreadsheets.<br/> This feature is designed to construct fully parametrically. '''Note:''' This feature is very experimental and not recommended for important projects.<br/>Known problems: * The assembly can be destroyed because of wrong references to topological names in parts * Master spreadsheets can get broken when they are edited while a referenced part file is already closed. This can crash FreeCAD. ; Enable recursive update of imported parts : Opens all subassemblies recursively to update them. ; Use experimental topological naming : While importing parts to the assembly an algorithm generates topological names for each subelement of the imported shape. The topological names are written into the {{PropertyData|mux Info}}. When an imported part needs to be updated, these topological names are used to update the subelements of the constraints. So assemblies get more robust against volatile subelement numbers of FreeCAD.<br/> '''Note:''' This increases file sizes and calculation time during import of parts. If topological naming should be used it has to be activated before the assembly is created. ; Inherit per face transparency from parts and subassemblies : Use colour and transparency settings from imported parts.<br/> '''Note:''' This feature is very experimental and not recommended for important projects. ; Do not import invisible shapes : This will hide invisible datum/construction shapes. '''Note:''' No constraints must be connected to datum/construction shapes in higher or other subassemblies. Otherwise you can break the assembly. ; Use solid union for importing parts and subassemblies : All imported parts will directly be put together as union.<br/> This feature is useful for [[FEM_Workbench|FEM]] simulations or [[Manual:Preparing_models_for_3D_printing|3D-printing]] if only one solid is allowed. The alternative is to create a [[#Shape_of_whole_Assembly|shape of the whole assembly]] later on. === User interface settings === ; Show constraints in toolbar : If this option is not used, the toolbar buttons for the different constraints are not visible to save space in the toolbar. New constraints can still be set using the ''Constraint Tools'' dialog (toolbar button [[Image:A2p DefineConstraints.svg|24px]]). ; Use native file manager of your OS : If this option is used, you get the file dialog of your OS when selecting files for assemblies. === Storage of files === ; Use relative paths for imported parts : Uses relative file paths to the part files. ; Use absolute paths for imported parts : Uses absolute file paths to the part files. ; All files are in this project folder : All project files have to be in the specified folder. It doesn't matter if they are in subfolders of this folder. '''Note:''' No file is allowed to exist several times in the folder (e.g. in different subfolders).<br/> This option is helpful to work on different machines because then one only has to copy the project folder. == Troubleshooting == Sooner or later you will get the problem that A2plus cannot solve the constraints you set. To overcome this, there are different strategies: === Using the Conflict Finder Tool === This is the safest method when you have several constraints because this tool attempts to solve one constraint after another until it finds the conflicting constraint. Then you can go on with the other strategies to resolve the identified constraint. The tool is called using the toolbar button [[File:A2p_SearchConstraintConflicts.svg|24px]]. === Checking Constraint Direction === Sometimes constraints seem to be consistently defined but they can nevertheless not be solved. An example: Assume you have a {{Variable|[[#Plane_Parallel|planesParallel]]}} constraint set for two planes. Now you want to set for the same planes the {{Variable|[[#Plane_on_Plane|planeCoincident]]}} constraint and A2plus cannot solve this. Then the constraint directions of {{Variable|planesParallel}} and {{Variable|planeCoincident}} are different. Use the same direction for both constraints to fix this. A2plus offers to automatically check the right direction for '''all''' constraints of the assembly using the toolbar button [[Image:A2p_ReAdjustConstraints.svg|24px]]. === Deleting Constraints === Most cases of unsolvable constraints occur directly when adding a new constraint. The solution is then to delete the constraint you added last. A2plus will propose this, too. Sometimes the deletion strategy is the only one, for example when you edited a part in FreeCAD so that faces or edges connected to constraints are missing. You should then delete one constraint that is connected to the changed part at a time. Use the toolbar button [[Image:A2p solver.svg|24px]] after every deletion to see if you reached a solvable state. When you got an assembly that can be solved, add step by step the constraints you need. === Moving Parts === In some cases the solver only needs better start values to solve the constraints. Take for example the case that you have an axle part and a wheel part. You add a {{Variable|axisCoincident }} constraint and get no info that the solver failed but the parts are not moved accordingly and in the ''Report view'' widget of FreeCAD you see "''REACHED POS-ACCURACY :0.0''". A solution for this is to move the parts closer to that position you like to get by the constraint. '''Note:''' Assure that at least one part of the constraint has the property {{PropertyData|fixed Position}} set to ''false''. === Setting the Tip Property === If you miss some features of your part after the import to an A2plus assembly, check the property {{PropertyData|[[PartDesign_MoveTip|Tip]]}}. A2plus imports bodies of parts with all their features up to the tip feature. This is sensible because setting the tip to a certain feature means that all features behind the tip should not appear in the final part. So if you miss a part feature in A2plus, open the part via the toolbar button [[Image:A2p EditPart.svg|24px]], then select a body and look at its property {{PropertyData|Tip}}. If the tip is not at the feature where you want it, right-click on the feature where the tip should be and choose {{MenuCommand|[[File:PartDesign_MoveTip.svg|24px]] Set tip}}. Finally save the part and reload the assembly using the toolbar button [[Image:A2p ImportPart_Update.svg|24px]]. === Repairing Assembly Tree === If you cannot see a clear reason why some constraints cannot be resolved, you can try to use the toolbar button [[Image:A2p RepairTree.svg|24px]]. This will resolve all constraints and re-group then again under the different parts. === Migrating old A2plus assemblies === Assemblies created with A2plus older than March 2019 do not show the correct icons for imported parts and have obsolete properties. These assemblies can be migrated to A2plus version 0.4.35 and newer using the menu {{MenuCommand|A2plus → Misc → [[File:A2p_Upgrade.svg|24px]] Migrate proxies of imported parts}}. After doing this, you must save and reopen your assembly file. === Avoiding Accented Characters === '''This strategy is not necessary for Windows.''' On some operating systems you can get problems if the file names or the file paths of parts or the assembly contain accented characters. Therefore avoid such characters and also special characters in general. === Fixing Position === '''This strategy is no longer necessary for assemblies created with A2plus 0.3.11 or newer because A2plus issues now a warning for missing fixed positions.''' When you set a constraint between two parts and no part has the property {{PropertyData|fixed Position}} set to ''true'' or is connected by a constraint to a part with {{PropertyData|fixed Position}} set to ''true'', the constraint cannot be solved. The same happens if both parts of the constraint have {{PropertyData|fixed Position}} set to ''true''. Then A2plus outputs the info about the failed solution, but sometimes you only see that the parts are not moved accordingly and in the ''Report view'' widget of FreeCAD you see "''REACHED POS-ACCURACY :0.0''". This means the solver finished without errors but it could actually not solve the constraints. Therefore check that at least one of your parts in the assembly has {{PropertyData|fixed Position}} set to ''true''. Then assure that you only set constraints to a part which is somehow connected to the fixed part. To visualise these dependencies, see section [[#Assembly_Structure|Assembly Structure]]. === Rotating Parts === '''This strategy is no longer necessary for assemblies created with A2plus 0.4.0 or newer because A2plus rotates the parts now automatically a bit in the background to get a sufficient start angle for the solver.''' The solver often fails for the constraint {{Variable|angledPlanes}} if the two selected planes have currently an angle of 0° or 180°. (The parts are not moved accordingly and in the ''Report view'' widget of FreeCAD you see "''REACHED POS-ACCURACY :0.0''".) A solution for this is to rotate one part by a few degrees using FreeCAD's transform feature (right-click on the part in the model tree and select in the context menu {{MenuCommand|Transform}}). '''Note:''' Assure that at least one part of the constraint has the property {{PropertyData|fixed Position}} set to ''false''. == Animation == A2plus offers animations via dragging and via Python scripts. === Dragging === Dragging animations are interactive since you trigger it by dragging a part of the assembly. To get these kind of animations: # Fully constrain the part whose movement or rotation should be animated # Click on the toolbar button [[Image:A2p MovePartUnderConstraints.svg|24px]]. This enables the dragging mode. # Click on the desired part in the assembly. # Now you can move the mouse and the part will follow the movement of the mouse within the defined constraints. # To end the dragging mode, left click in the assembly or press ESC. Here is an example assembly to try out the dragging animation: [https://forum.freecadweb.org/download/file.php?id=99204 A2p_example-for-dragging-animation.FCStd] [[Image:A2p_dragging-animation-result.gif]] {{Caption|Above: The dragging animation using the example assembly}} === Scripting === Despite the dragging mode offers nice interactive animations, they are sometimes not precise enough for screencasts or videos. Scripted animations have the advantage that they animate movements and rotations in a defined way. You can for example rotate a part by exactly 10° back and forth. The following examples use an assembly where a part should be rotated. If you try to animate this using the dragging mode, you will see how hard it is to get a back and forth rotation that you can e.g. show your boss in a presentation. With the interactive example script, however, this is an easy task. A scripted animation works usually this way: # The assembly is fully constrained # The script changes a parameter, for example the position or rotation angle of a part # After the parameter change, the assembly constraints are solved # Step 2. and 3. are repeated to get the animation It is also possible to change instead of a placement parameter a constraint, for example the distance between 2 planes. ==== Simple Script Example ==== The simplest way to script an animation is a non-interactive animation that follows a defined movement. Here is an example: First download this assembly file: [https://forum.freecadweb.org/download/file.php?id=97554 A2p_animated-example.FCStd] and also this Python script: [https://forum.freecadweb.org/download/file.php?id=97981 A2p_animation-example-script.py]. <div class="mw-collapsible mw-collapsed toccolours"> This is the content of the script and the lines beginning with a '#' describe what the different script lines do: <div class="mw-collapsible-content"> {{Code|code= # import libraries import time, math, PySide import A2plus.a2p_solversystem as a2p_solver # we use steps of 1 degree step = 1 # wait 1 ms between every step timeout = 0.001 # initial angle is 0 degree angle = 0 # we take the currently opened document document = FreeCAD.activeDocument() # we want later change the rotation angle of the part "star_wheel_001" starWheel = document.getObject("star_wheel_001") # define a progress dialog running from 0 to 360 progressDialog = PySide.QtGui.QProgressDialog(u"Animation progress", u"Stop", 0, 360) # the while block is the main loop to change the angle and solve # the assembly constraints subsequently while angle < 360: # run this loop until we have one full turn (360 degrees) # increase the rotation angle angle += step # set the new angle to the progress dialog progressDialog.setValue(angle) # change the rotation angle of the part "star_wheel_001" starWheel.Placement.Rotation.Angle = math.radians(angle) # solve the constraints a2p_solver.solveConstraints(document, useTransaction=True) # update the view after the solving ('Gui' stands for 'graphical user interface') FreeCADGui.updateGui() # bring the progress dialog to front PySide.QtGui.QWidget.raise_(progressDialog) # if 'Stop' was pressed in the dialog, exit the loop if progressDialog.wasCanceled(): angle = 360 # wait some time before performing the next step time.sleep(timeout) }} </div> </div> To use the script to perform the animation, we must # Open the assembly file in FreeCAD. # Open the script file in FreeCAD. # Click on the toolbar button [[Image:Menu_Std_DlgMacroExecute_fr_02.png|24px]] to execute the script (also called macro). # Change to the tab of the assembly to see the rotation. To practice, just change something in the script and execute it afterwards. For example increase ''step'' to ''5''. This is the result of the example animation: [[Image:A2p animated-example-result.gif]] ==== Interactive Script Example ==== The first script example demonstrated how to create an animation without any user feedback. For most applications you need to interact with the animation. For example the interesting issue in the example is to see how the driving pins cross the center groove of the wheel. To have a closer look you might present this detail to your colleagues or boss. Therefore you need an interactive solution. This can be done by using a custom animation dialog with a slider. By moving the slider you can set the rotation angle and therefore rotate back and forth at interesting position. We use the same assembly file: [https://forum.freecadweb.org/download/file.php?id=97554 A2p_animated-example.FCStd] and this Python script: [https://forum.freecadweb.org/download/file.php?id=97982 A2p_animation-example-script.py]. <div class="mw-collapsible mw-collapsed toccolours"> This is the content of the script to get the interactive animation dialog: <div class="mw-collapsible-content"> {{Code|code= # import libraries import time, math, PySide, sys import FreeCAD.A2plus.a2p_solversystem as a2p_solver from FreeCAD import Units from PySide import QtCore, QtGui # wait 1 ms after every calculation timeout = 0.001 # we take the currently opened document document = FreeCAD.activeDocument() # we want later change the rotation angle of the part "star_wheel_001" starWheel = document.getObject("star_wheel_001") class AnimationDlg(QtGui.QWidget): # the animation dialog def __init__(self): # to initialize the dialog super(AnimationDlg, self).__init__() self.initUI() def initUI(self): # the definition of the dialog components self.setMinimumSize(self.minimumSizeHint()) # set the minimal dialog size to minimum self.setWindowTitle('Animation Dialog') # use a grid layout for the whole form self.mainLayout = QtGui.QGridLayout() self.lineNo = 0 # first dialog grid line # add description label DescriptionLabel = QtGui.QLabel(self) DescriptionLabel.setText("Change slider to change rotation angle") self.mainLayout.addWidget(DescriptionLabel,self.lineNo,0,1,4) # next dialog grid line self.lineNo += 1 # add a label; there is no need for the "self." prefix because we don't want to change the label later LabelMin = QtGui.QLabel(self) LabelMin.setText("Min") LabelMin.setFixedHeight(32) self.mainLayout.addWidget(LabelMin,self.lineNo,0) # add a spin edit to define the slider minimum self.MinEdit = QtGui.QSpinBox(self) # get the angle unit as string self.MinEdit.setSuffix(" " + str(FreeCAD.Units.Quantity(1, FreeCAD.Units.Angle))[2:]) self.MinEdit.setMaximum(999) self.MinEdit.setMinimum(0) self.MinEdit.setSingleStep(10) self.MinEdit.setValue(0) self.MinEdit.setFixedHeight(32) self.MinEdit.setToolTip("Minimal angle for the slider") QtCore.QObject.connect(self.MinEdit, QtCore.SIGNAL("valueChanged(int)"), self.setMinEdit) self.mainLayout.addWidget(self.MinEdit,self.lineNo,1) # add the slider self.slider = QtGui.QSlider(QtCore.Qt.Horizontal, self) self.slider.setRange(0, 360) self.slider.setValue(0) self.slider.setFixedHeight(32) self.slider.setToolTip("Move the slider to change the rotation angle") QtCore.QObject.connect(self.slider, QtCore.SIGNAL("sliderMoved(int)"), self.handleSliderValue) self.mainLayout.addWidget(self.slider,self.lineNo,2) # add a label LabelMax = QtGui.QLabel(self) LabelMax.setText("Max") LabelMax.setFixedHeight(32) self.mainLayout.addWidget(LabelMax,self.lineNo,3) # add a spin edit to define the slider maximum self.MaxEdit = QtGui.QSpinBox(self) # get the angle unit as string self.MaxEdit.setSuffix(" " + str(FreeCAD.Units.Quantity(1, FreeCAD.Units.Angle))[2:]) self.MaxEdit.setMaximum(999) self.MaxEdit.setMinimum(1) self.MaxEdit.setSingleStep(10) self.MaxEdit.setValue(360) self.MaxEdit.setFixedHeight(32) self.MaxEdit.setToolTip("Maximal angle for the slider") QtCore.QObject.connect(self.MaxEdit, QtCore.SIGNAL("valueChanged(int)"), self.setMaxEdit) self.mainLayout.addWidget(self.MaxEdit,self.lineNo,4) # next dialog grid line self.lineNo += 1 # add a spacer self.mainLayout.addItem(QtGui.QSpacerItem(10,10), 0, 0) # add a label LabelCurrent = QtGui.QLabel(self) LabelCurrent.setText("Current angle:") LabelCurrent.setFixedHeight(32) self.mainLayout.addWidget(LabelCurrent,self.lineNo,1) # output the current angle self.CurrentAngle = QtGui.QLineEdit(self) self.CurrentAngle.setText(str(0)) self.CurrentAngle.setFixedHeight(32) self.CurrentAngle.setToolTip("Current rotation angle") self.CurrentAngle.isReadOnly() self.mainLayout.addWidget(self.CurrentAngle,self.lineNo,2) # add label for the unit LabelUnit = QtGui.QLabel(self) LabelUnit.setText("deg") LabelUnit.setFixedHeight(32) self.mainLayout.addWidget(LabelUnit,self.lineNo,3) # button to close the dialog self.Close = QtGui.QPushButton(self) self.Close.setText("Close") self.Close.setFixedHeight(32) self.Close.setToolTip("Closes the dialog") QtCore.QObject.connect(self.Close, QtCore.SIGNAL("clicked()"), self.CloseClicked) self.mainLayout.addWidget(self.Close,self.lineNo,4) # place the defined grid layout to the dialog self.setLayout(self.mainLayout) self.update() def handleSliderValue(self): # set slider value as angle starWheel.Placement.Rotation.Angle = math.radians(self.slider.value()) # output current angle self.CurrentAngle.setText(str(self.slider.value())) # solve the constraints a2p_solver.solveConstraints(document) # update the view after the solving ('Gui' stands for 'graphical user interface') FreeCADGui.updateGui() # wait some time, important to give time to perform calculations time.sleep(timeout) def setMinEdit(self): # assure that the minimum is samller than the maximum if self.MinEdit.value() >= self.MaxEdit.value(): self.MaxEdit.setValue(self.MinEdit.value() + 1) self.slider.setRange(self.MinEdit.value(), self.MaxEdit.value()) def setMaxEdit(self): # assure that the minimum is samller than the maximum if self.MinEdit.value() >= self.MaxEdit.value(): self.MinEdit.setValue(self.MaxEdit.value() - 1) self.slider.setRange(self.MinEdit.value(), self.MaxEdit.value()) def CloseClicked(self): AnimationDialog.close() # create and show the defined dialog AnimationDialog = AnimationDlg() AnimationDialog.show() # run this loop when the dialog is visible while AnimationDialog.isVisible(): # update the view; important to give the OS feedback the dialog is alive FreeCADGui.updateGui() # bring the dialog to front, so that the dialog is always visible QtGui.QWidget.raise_(AnimationDialog) # output slider value here too because during the calculation the slider might have been moved AnimationDialog.CurrentAngle.setText(str(AnimationDialog.slider.value())) }} </div> </div> The dialog defined in the script looks like this: [[Image:A2p_AnimationDialog.png]] === Script Commands === To understand the script syntax better, here is some command info: {{Code|code= starWheel.Placement.Rotation.Angle = math.radians(angle)}} Here we change the placement property {{incode|Rotation.Angle}} of the part get got previously as {{incode|starWheel}}. This property gets the angle as [https://en.wikipedia.org/wiki/Radian radian]. The function {{incode|radians()}} from the library {{incode|math}} converts the angle from degree to radian. The property {{incode|Rotation.Angle}} uses the current placement axis of the part (in our example the X-axis). To rotate the part e.g. around the Z-axis one can set the rotation axis (before calling the rotation command) using the command: {{Code|code= starWheel.Placement.Rotation.Axis = FreeCAD.Vector(0,0,1)}} Instead of rotating, parts can also be moved. To change for example the placement in Y-direction of the wheel, the command would be: {{Code|code= starWheel.Placement.Base.y = PositionShift}} In this case we would not define the variable {{incode|angle}} but {{incode|PositionShift}} that we change on every loop run. There are different ways to set the placement of a part. Some are [[Placement| documented here]]. Unfortunately there is no list (yet) with all possible placement commands. {{Code|code=a2p_solver.solveConstraints(document, useTransaction=False/True)}} This is an A2plus-specific command. It solves the assembly constraints of the assembly we previously got as {{incode|document}}. The option {{incode|useTransaction}} specifies if FreeCAD should store every change in the undo/redo stack. For large animations you might therefore set it to {{FALSE}}. {{Userdocnavi{{#translation:}}}} [[Category:Addons{{#translation:}}]] [[Category:External Workbenches{{#translation:}}]]