Nice to see you testing carbon copy intensively. Let me know if it fails somewhere or if you see how it can be improved. In this proposed work process, I invariably turn all of the geometry of the CarbonCopy master sketch to construction geometry so that the new feature geometry or the start of the...

I have started this project to test the stability of V0.19 and to practice some new techniques introduced in V0.18 sketcher. This model is being created from drawings by J.A.M De Waal (http://www.vapeuretmodelesavapeur.com/telechargements5/clayton-undertype-4ft.pdf) of a 1/6 scale originally designe...

kisolre wrote: ↑Wed May 08, 2019 11:22 amFinal result

Looking good.
Clever use of sketch construction geometry to avoid trig calculations...!

Here is one way to construct the hirth according to the previously posted video. Should be self-explanatory: hirth.png formulae.JPG hirth_geometry.FCStd OS: Windows 10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.18.16110 (Git) Build type: Release Branch: (HEAD detached at upstrea...

Looks much better but not quite there yet.

It is sometimes helpful to review how they are manufactured (starts at 3:00):
https://www.youtube.com/watch?v=-JskW3UdZx0

See also this calculator that determines the offset angle: http://thmq.mysteria.cz/hirth/

kisolre wrote: ↑Tue May 07, 2019 11:00 am one more properly designed according to the PDF UR_ posted

Something is not right, the two halves do not mate correctly:

un1corn wrote: ↑Sat Mar 30, 2019 10:30 pm these engines have a character and strength of their own

+1

Syres wrote: ↑Fri Mar 15, 2019 12:51 pm I've just renamed my User.cfg and System.cfg and retried as if I was a new user and all works OK.

OK, thanks. I'll give it a try.

The Start page will not load on this version and produces the following comment in the Report View: (3, 'The system cannot find the path specified', '') OS: Windows 10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.18.16093 (Git) Build type: Release Branch: releases/FreeCAD-0-18 Has...

I also looked at some complex assembly models from the user showcase... When working with both Fusion360 and Onshape I was able to fluidly model new components with other components, in context. All of the assembly models on the user showcase created by me using PartDesign workbench were by 'design...