Another approach to assembly solver (A2plus)

Discussion about the development of the Assembly workbench.
Gibbl
Posts: 3
Joined: Sun Apr 14, 2019 8:34 am

Re: Another approach to assembly solver (A2plus)

Postby Gibbl » Tue Jul 23, 2019 11:02 pm

Hello,

So I'm using FreeCAD recently and got myself on the Asm2plus WB because I want to start with assemblies in FreeCAD.

As far as I understand in Asm2plus you have to convert parts to Asm2plus objetcs but those are static and can't updated via the Update parts function. But Asm2plus objects are needed to work with more complex constraints. Actually I run very early in unconstrained error messages unless I changed the parts into Asm2plus objects. But how are those Asm2plus parts updated? Do I have to re-import them all the time after I did a small change to them? I think I'm missing something here.
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easyw-fc
Posts: 2663
Joined: Thu Jul 09, 2015 9:34 am

Re: Another approach to assembly solver (A2plus)

Postby easyw-fc » Wed Jul 24, 2019 5:38 am

Gibbl wrote:
Tue Jul 23, 2019 11:02 pm
Hello,
Have a look at the wiki

https://www.freecadweb.org/wiki/A2plus_Workbench
Gibbl
Posts: 3
Joined: Sun Apr 14, 2019 8:34 am

Re: Another approach to assembly solver (A2plus)

Postby Gibbl » Wed Jul 24, 2019 6:10 am

easyw-fc wrote:
Wed Jul 24, 2019 5:38 am
Gibbl wrote:
Tue Jul 23, 2019 11:02 pm
Hello,
Have a look at the wiki

https://www.freecadweb.org/wiki/A2plus_Workbench
Actually, I searched for the problem before, also did an look at the wiki (because often it's the first result), but don't understand this problem yet, sorry!!
dan-miel
Posts: 63
Joined: Thu Sep 13, 2018 12:29 am
Location: Spokane WA. USA

Re: Another approach to assembly solver (A2plus)

Postby dan-miel » Fri Jul 26, 2019 4:29 am

Gibbl wrote:
Tue Jul 23, 2019 11:02 pm
As far as I understand in Asm2plus you have to convert parts to Asm2plus objetcs
I'm not sure what you mean by convert.
I normally create the parts using part or part design WBs and then insert them using the insert button. I have not used the convert button, I think the convert button might be for converting parts from a ASSM2 assembly or perhaps a SAT file.

Gibbl wrote:
Tue Jul 23, 2019 11:02 pm
but those are static and can't updated via the Update parts function.
When I insert a part file I have often opened the file, made changes and updated the assembly using the update button. The part file must be saved to the disk, apparently the update button reads from the files saved to the disk not the files in memory.
I hope this helps.
Dan Miel
safrican
Posts: 1
Joined: Thu Sep 05, 2019 5:38 pm

Re: Another approach to assembly solver (A2plus)

Postby safrican » Thu Sep 05, 2019 5:49 pm

Greetings, noob here
I just installed the most recent version of FreeCAD (0.18.16131 (Git)), and tried to use the Addons Manager to install A2plus. But, despite downloading and extracting the zip files from Github and extracting to the Mod folder, and despite Addons Manager recognising the A2plus workbench from Github, I cannot get it installed. What have I done wrong?

Apologies if this is the wrong place to post.

Thank you
chrisb
Posts: 18826
Joined: Tue Mar 17, 2015 9:14 am

Re: Another approach to assembly solver (A2plus)

Postby chrisb » Thu Sep 05, 2019 8:18 pm

Did you restart FreeCAD after installing?
Is a2+ marked as installed in Addonmanager?
herbk
Posts: 1536
Joined: Mon Nov 03, 2014 3:45 pm
Location: Windsbach, Bavarya (Germany)

Re: Another approach to assembly solver (A2plus)

Postby herbk » Fri Sep 06, 2019 12:39 pm

Hi,
i don`t understand what you are doing...
If you use the Addon Manager, you get it unzipt to the mod folder. More is not to do, restart FreeCAD and A2+ should aper at the end of the workbench list.
But be aware, that A2+ don't work well with FC 0.18, it's made with/for FC 0.19 and some things will not work with 0.18.
Gruß Herbert
kbwbe
Posts: 875
Joined: Tue Apr 10, 2018 3:12 pm
Location: Germany, near Köln (Cologne)

Re: Another approach to assembly solver (A2plus)

Postby kbwbe » Wed Oct 09, 2019 8:01 pm

Hi everyone,

all those people who are already working with FC0.19 after link merge and using A2plus, should update to A2plus version V0.4.27.
The behavior of the part containers changed since link merge and prevented the correct A2plus import of part design files. This is fixed now.
KBWBE

https://github.com/kbwbe/A2plus
latest release: v0.4.29, installable via FreeCAD's addon manager
Tutorials:
Paul Randall: https://youtu.be/mnkecA9S7kc
anisim (deutsch): https://www.youtube.com/watch?v=vDcaFq6IEJM
jbe
Posts: 274
Joined: Sun Nov 10, 2013 4:18 pm
Location: France, Châteauroux

Re: Another approach to assembly solver (A2plus)

Postby jbe » Sat Oct 19, 2019 1:07 pm

Hello kbwe,
Could you add a new button to open the FreeCAD library, then we select a part, an after use A2Plus to assembly this part. May be we can parameter when is the library.
The adress off library is :
https://github.com/FreeCAD/FreeCAD-library

Best regard.
Turro75
Posts: 170
Joined: Mon Aug 15, 2016 10:23 pm

Re: Another approach to assembly solver (A2plus)

Postby Turro75 » Sun Oct 20, 2019 10:26 am

jbe wrote:
Sat Oct 19, 2019 1:07 pm
Hello kbwe,
Could you add a new button to open the FreeCAD library, then we select a part, an after use A2Plus to assembly this part. May be we can parameter when is the library.
The adress off library is :
https://github.com/FreeCAD/FreeCAD-library

Best regard.
not a bad idea at all, inserting (improving) the library macro in the workbench to quickly import objs is a really good nice to have feature.
IMO using file open dialog (FC 0.18 on win10) is a PITA.

Have a nice Sunday

Valerio