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by jpg87
Thu Apr 15, 2021 4:10 pm
Forum: Assembly
Topic: Assembly 3 - modify/edit or delete/replace constraint? (solved)
Replies: 8
Views: 372

Re: Assembly 3 - modify/edit or delete/replace constraint? (solved)

bambuko wrote:
Wed Apr 14, 2021 8:30 am
...
LHC wrote:
Wed Apr 14, 2021 12:57 pm
...
Thank you for your support.
I have started updating the web pages for my basic example and will try to find time to update the affected videos.
by jpg87
Tue Apr 13, 2021 6:34 pm
Forum: Assembly
Topic: Assembly 3 - modify/edit or delete/replace constraint? (solved)
Replies: 8
Views: 372

Re: Assembly - modify/edit or delete/replace constraint? (solved)

I hope all this great stuff finds it's way to your grand Assembly 3 tutorial That was my intention. There it's done : http://help-freecad-jpg87.fr/0270_ass_FAQ.php I also want to take my basic example to upgrade it to version 0.11 of Asm 3. I love the way Assembly 3 works Me too: I find it full of ...
by jpg87
Mon Apr 12, 2021 8:47 pm
Forum: Assembly
Topic: Assembly 3 - modify/edit or delete/replace constraint? (solved)
Replies: 8
Views: 372

Re: Assembly - modify/edit or delete/replace constraint? (solved)

... PS: Several modifications must be added: First of all remove the constraint "PlaneAlignmentV_AxleBox-CrossHead (whith offset)" that I had used to position the piston mechanism. supp constraint.jpg Then change the constraint type for AxialAlignment_ConnRod-Piston to PlaneAlignment_ConnRod-Piston...
by jpg87
Mon Apr 12, 2021 7:00 pm
Forum: Assembly
Topic: Assembly 3 - modify/edit or delete/replace constraint? (solved)
Replies: 8
Views: 372

Re: Assembly - modify/edit or delete/replace constraint?

Can I modify/edit the constraint and elements to change the assembly design? Hello ! It is possible to replace the constraint element El @ As_crosshead_pin of crosshead_pin by the constraint element El2 @ As_crosshead_pin by dragging and dropping the last one onto that of the connection to be modif...
by jpg87
Sun Apr 11, 2021 6:05 pm
Forum: Assembly
Topic: Assembly 3 - loco coupled wheels motion (solved)
Replies: 26
Views: 929

Re: Assembly 3 - making progress (loco coupled wheels motion)

1) how do you save modified macro? ... To save the modified macro, the macro file must be active (just after a write), then the FreeCAD File / Save command applies to this file. If we are in the classic FreeCAD screen (tree, 3D view, etc.), the FreeCAD file (eg the assembly) is saved. According to ...
by jpg87
Sun Apr 11, 2021 8:36 am
Forum: Assembly
Topic: Assembly 3 - loco coupled wheels motion (solved)
Replies: 26
Views: 929

Re: Assembly 3 - making progress (loco coupled wheels motion)

I like FreeCAD approach ... Me too ! The macro file : AnimLoco.7z To build the piloting file, click on the name of the pilot constraint in the General assembly constraints group : The identifier of this constraint appears in the Python console (which must obviously be open !). The Lock Angle proper...
by jpg87
Sat Apr 10, 2021 7:13 pm
Forum: Assembly
Topic: Assembly 3 - loco coupled wheels motion (solved)
Replies: 26
Views: 929

Re: Assembly 3 - making progress (loco coupled wheels motion)

but so would be finishing my design to the point, where I can go to the workshop and start cutting metal Wonderful work. Congratulations. Beautiful machining work in perspective. Here is my assembly file. I will continue tomorrow. https://www.dropbox.com/s/0n6go3vpjvdi91m/Bat_Assy_3_jpg87forAnim.7z...
by jpg87
Sat Apr 10, 2021 11:43 am
Forum: Assembly
Topic: Assembly 3 - loco coupled wheels motion (solved)
Replies: 26
Views: 929

Re: Assembly 3 - making progress (loco coupled wheels motion)

... I started all over again from the following components alone : axlebox_driving ; driving_axle ; driving_wheel ; coupled_wheel ; driving_crankpin ; coupled_crankpin. Even if it is not strictly necessary, I created for each of these components an assembly container (As _...) allowing to predefine...
by jpg87
Thu Apr 08, 2021 6:34 pm
Forum: Assembly
Topic: Assembly 3 - loco coupled wheels motion (solved)
Replies: 26
Views: 929

Re: Assembly 3 - making progress (loco coupled wheels motion)

However, whatever I did when trying to do all four wheels was fine until I tried to add coupling rods Unless I am mistaken, when you constrain the 2nd connecting rod, the constraints become superabundant ... and the system hangs! It would be necessary to remove the left coupled wheel (eg) from its ...
by jpg87
Wed Apr 07, 2021 8:46 am
Forum: Assembly
Topic: Assembly 3 - constraint with expression to control rotation
Replies: 4
Views: 221

Re: Assembly 3 - constraint with expression to control rotation

The files to be downloaded are the controls of the movements and they are commented on:
http://help-freecad-jpg87.fr/0269_ass_ex_creat_Glob.php

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