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by murdic
Mon Aug 01, 2016 7:25 am
Forum: Help on using FreeCAD
Topic: How to move and align STEP assembly
Replies: 13
Views: 3501

Re: How to move and align STEP assembly

NormandC wrote: I've had it with people who think FreeCAD can't deal with assemblies just because there's no way to apply constraints to parts.

Does insult fix that for you?
by murdic
Sun Jul 31, 2016 11:41 pm
Forum: Help on using FreeCAD
Topic: How to move and align STEP assembly
Replies: 13
Views: 3501

Re: How to move and align STEP assembly

Again, it's assembly, period. The fact there is no 3D constraints does not make it less so. Pretending otherwise is asinine. :roll: asinine ˈasɪnʌɪn/Submit adjective extremely stupid or foolish. "Lydia ignored his asinine remark" synonyms: stupid, foolish, pointless, brainless, mindless, senseless,...
by murdic
Sun Jul 31, 2016 1:59 am
Forum: Help on using FreeCAD
Topic: How to move and align STEP assembly
Replies: 13
Views: 3501

Re: How to move and align STEP assembly

NormandC wrote:In 3D CAD terminology, what you have is called an assembly.
There's no native relationship smarts. Aggregate or compound, I reckon.
by murdic
Sun Jul 31, 2016 12:31 am
Forum: Help on using FreeCAD
Topic: How to move and align STEP assembly
Replies: 13
Views: 3501

Re: How to move and align STEP assembly

Selecting all entities and draft|upgrade should group them so that they move as one. Work in Ortho views using workplanes by view, use draft|move and draft|rotate, snap features and coordinate entry to orient the group. Once done, downgrade the group to separate the components.
by murdic
Tue Jul 19, 2016 12:48 pm
Forum: Help on using FreeCAD
Topic: Convert selection to Part doesn't work
Replies: 2
Views: 386

Re: Convert selection to Part doesn't work

It's possible to isolate (coincident copy) individual faces instead of downgrading the object, by highlighting them (faces), invoking draft trim/extend, and then cancelling out. Perhaps you'd be able to apply distinct materials to those faces. *I think you've highlighted one face. Isolate that by in...
by murdic
Sat Jul 16, 2016 5:57 am
Forum: Help on using FreeCAD
Topic: How to generate a 2D plan of the ouside of a cone for laser cuting?
Replies: 6
Views: 1455

Re: How to generate a 2D plan of the ouside of a cone for laser cuting?

Did you check the ruled surface parameter when you lofted the profiles?
by murdic
Tue Jul 12, 2016 4:32 am
Forum: Help on using FreeCAD
Topic: Nurbs editor
Replies: 246
Views: 39396

Re: Nurbs editor

There's an interesting height field generator out there called "ZSurf4" which generates an .igs file of a nurbs surface from greyscale bitmaps. The results are good enough to use as bases for measurement and reverse engineering.
by murdic
Fri Jul 08, 2016 2:34 am
Forum: Help on using FreeCAD
Topic: Nurbs editor
Replies: 246
Views: 39396

Re: Nurbs editor

There's a lovely surface and curve editor called PolyCAD by a guy named Marcus Bole on polycad.co.uk, it's a parametric ship modeler too. Not open but free, he requires registration, but it's the most intuitive curve/surface editor there is, IMO. Manual or numeric editing, plain English file format,...
by murdic
Fri Jun 24, 2016 11:39 pm
Forum: Help on using FreeCAD
Topic: Aligning the global coordinate system
Replies: 5
Views: 1424

Re: Aligning the global coordinate system

User coordinate systems can be considered as a convenient access to working plane and transformation matrices related to that plane. Placing an origin imposes an arbitrary 'absolute' coordinate system instead of the relative system that is used otherwise. I disagree about necessity. IMO, convenience...
by murdic
Fri Jun 24, 2016 1:06 am
Forum: Help on using FreeCAD
Topic: Keyboard:offset and continue command
Replies: 6
Views: 963

Re: Keyboard:offset and continue command

Workbench related? I've noticed that w,p workplane works in draft workbench but not complete.

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