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by freedman
Fri Dec 18, 2020 6:26 am
Forum: Python scripting and macros
Topic: Messing around with the topo-naming issue
Replies: 29
Views: 1387

Re: Messing around with the topo-naming issue

chrisb, 1) It would be interesting to see how you check for a sketch being "close" to its previous position. That I think is "marching". I offset the sketch in the Z-direction, recompute and look for an error. This could fix a multiple solid error. Once the error is corrected the backup placement w...
by freedman
Thu Dec 17, 2020 11:46 pm
Forum: Python scripting and macros
Topic: Messing around with the topo-naming issue
Replies: 29
Views: 1387

Re: Messing around with the topo-naming issue

If I have a sketch (attached to a face) and the face gets renumbered the sketches placement will change. I can put the sketch back where it was (placement wise) and the next logical step is to find the new face number at that placement. Thought I would answer my own question (with an approach) in c...
by freedman
Thu Dec 17, 2020 4:24 pm
Forum: Python scripting and macros
Topic: Messing around with the topo-naming issue
Replies: 29
Views: 1387

Re: Messing around with the topo-naming issue

If I have a sketch (attached to a face) and the face gets renumbered the sketches placement will change. I can put the sketch back where it was (placement wise) and the next logical step is to find the new face number at that placement. That's my question; If I have a sketch sitting on a face ( not ...
by freedman
Tue Dec 15, 2020 8:25 pm
Forum: Python scripting and macros
Topic: Messing around with the topo-naming issue
Replies: 29
Views: 1387

Re: Messing around with the topo-naming issue

kisolre, thank you, that worked great.
by freedman
Tue Dec 15, 2020 7:43 am
Forum: Python scripting and macros
Topic: Messing around with the topo-naming issue
Replies: 29
Views: 1387

Messing around with the topo-naming issue

Anyone have any input on how to swap a sketch in a macro, something like this: I create sketch_1 and then make a duplicate sketch_2 with a small modification, then pad sketch_1. Now I would like to swap sketch_2 into sketch_1 and recompute to get the new pad, is that possible?? I would like to swap ...
by freedman
Sat Dec 05, 2020 6:12 pm
Forum: Help on using FreeCAD
Topic: How to space Loft sketches evenly?
Replies: 4
Views: 139

Re: How to space Loft sketches evenly?

You could select an axis, put a datum line on it, place a few datum planes (rotated pic) on the datum line, sketch on the datum planes. You can rotate sketches by angle using preferences.
by freedman
Fri Dec 04, 2020 7:59 pm
Forum: Help on using FreeCAD
Topic: Can I Pad a sketch without applying constraints?
Replies: 15
Views: 295

Re: Can I Pad a sketch without applying constraints?

drmacro » Fri Dec 04, 2020 10:15 am In fact I tend to use the polyline (many forget the "M" key here) to rough out the shape. Add arcs and other lines making sure NOT to touch vertices. Then trim to refine the rough sketch, then geometrical constraints, then finalize things with dimensional constra...
by freedman
Fri Dec 04, 2020 7:06 pm
Forum: Help on using FreeCAD
Topic: Can I Pad a sketch without applying constraints?
Replies: 15
Views: 295

Re: Can I Pad a sketch without applying constraints?

The trim tool in sketcher can be your friend. As you modify your sketch if you do intersecting shapes and then trim the excess you will get auto constraints on all your points.
by freedman
Thu Dec 03, 2020 10:04 pm
Forum: Help on using FreeCAD
Topic: Help avoiding topo bombs.
Replies: 19
Views: 400

Re: Help avoiding topo bombs.

Help avoiding topo bombs The answer kind of got mixed with the discussion: You can attach a sketch to a face but if you modify the face shape then it will probably get renumbered and you will have a topo-naming error. You can create a sketch on a standard plane and offset the sketch, if it's an odd...
by freedman
Thu Dec 03, 2020 6:17 pm
Forum: Help on using FreeCAD
Topic: fundamental
Replies: 34
Views: 896

Re: fundamental

I would also suggest looking at PartDesign. I might be biased because I use PartDesign all the time but for boxes and objects with mostly straight lines it can be much easier to use. That looks like it could be modeled without any booleans or fusing, just standard solid modeling.

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