Search found 27 matches

Go to advanced search

by Reynard1066
Mon Jul 06, 2020 1:30 pm
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

Select the Mesh Design workbench.
Edit->Preferences.
Import-Export, select Mesh Formats tab, Export group box.
by Reynard1066
Mon Jul 06, 2020 1:24 pm
Forum: Help on using FreeCAD
Topic: Creating repeated holes through a sphere
Replies: 5
Views: 228

Re: Creating repeated holes through a sphere

Set up a few Datum Planes at the correct place and angle.
Draw sketches of the apertures and pocket through the hollow hemisphere.
A polar pattern for each pocket.
Add in some guessing for hole shape and position.
by Reynard1066
Mon Jul 06, 2020 10:53 am
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

I create a B-Spline model in Blender and exported as an STL. Excellent mesh and consistent triangle size at a given height.

Imported into FC and created a solid from the mesh, then a base feature. I tried to pocket the base but FC wasn't having it. More FC mysteries I have yet to learn.
by Reynard1066
Sun Jul 05, 2020 10:01 pm
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

Hi abasel, I am seeing the kind of blemish you are showing now. It seems you are using a B-Spline for the outline of your skittle like model. Revolving this does not produce a nice regular mesh as you would expect. Some of the triangles are quite large in some areas. I am using FC 19.21857 and the p...
by Reynard1066
Sun Jul 05, 2020 8:18 am
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

Thanks chrisb, I will check that one out.
by Reynard1066
Sun Jul 05, 2020 7:39 am
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

Use a mesh viewer program like Blender to examine your model. Maybe it is Cura that is creating the blemish. I use PrusaSlicer myself and it occasionally says my stl models are not manifold. Using Blender I can sometimes find the hole in the mesh and I can patch it up. If I can't find or easily fix ...
by Reynard1066
Fri Jul 03, 2020 10:15 am
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

Try putting a gap in between the inside ledge and the outer wall skin. That way any shrinkage of the ledge will be isolated from the outer wall.

Also, use a higher resolution mesh for your models. Facets on a curved surface is not a good look.

Reynard
by Reynard1066
Wed Jul 01, 2020 10:49 am
Forum: Help on using FreeCAD
Topic: turning a .dwg furniture model into a shaded rendering?
Replies: 9
Views: 404

Re: turning a .dwg furniture model into a shaded rendering?

If all the models are simple then pick off all the dimensions and re-build using FC. If not, then convert to stl as you have done. I used progeCAD to do the dwg to stl conversion. Blender is your goto program for doing room designs but you are looking at a long learning curve to master that. For som...
by Reynard1066
Tue Jun 30, 2020 7:44 am
Forum: Help on using FreeCAD
Topic: 3D Printed Model has blemish
Replies: 28
Views: 1026

Re: 3D Printed Model has blemish

After 4mm of height you lay down a wide floor of material. This floor if possible causing a lot of shrinkage at that level pulling in the side walls. You don't give any details on wall thickness or top and bottom layer count. You could try a higher density infill to try and resist the outer walls fr...
by Reynard1066
Fri Jun 05, 2020 12:56 pm
Forum: Help on using FreeCAD
Topic: Arch Textures
Replies: 7
Views: 235

Re: Arch Textures

Create a custom toolbar and import the buttons from the Arch WB. or add them to another toolbar.

Reynard

Go to advanced search