Thread cutting

[AvgJoe]

How to cut out the object named "3" from the "2" one? The opration failed on my cumputer.

Version: 0.16.6703 (Git)
Branch: releases/FreeCAD-0-16
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

[quick61]

How to cut out the object named "3" from the "2" one? The opration failed on my cumputer.

Version: 0.16.6703 (Git)
Branch: releases/FreeCAD-0-16
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

Part > Check geometry + BOPCheck shows your Sweep, "3", has geometric SelfIntersect errors out the wazoo. This is because the sweep crosses itself every direction of the compus. To fix this, I fused the outermost "thread" part of the Sweep, (review "3 Sketch" to see the changes) to a Cylinder that was rotated 1* on the Z axis to avoid a coplanar/tangent condition with the edges. I then Cut the fused part from the flange, "2", and it now works. No helical sweep like you have there will ever work, as it folds over on itself.

123(1).png (33.63 KiB) Viewed 2176 times

123 (1).fcstd

(334.89 KiB) Downloaded 58 times

Mark

OS: Kubuntu 14.04.4 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6703 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: 2ce5c8d2e3020d05005ed71f710e09e9aa561f40
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.18-dev

[mario52]

hi
i have simplified sketch3

123_02.FCStd

(227.31 KiB) Downloaded 83 times

EDIT: oups quick61
mario

[quick61]

Quite alright mario, as with most things FreeCAD, more than one way to get from start to finish. Little different approach, same end result.

Mark

[AvgJoe]

Thank you!

[mario52]

hi quick61
you posted that while I work on the subject (and I did not see your post)

same end result.

yes
mario

[tanderson69]

http://www.freecadweb.org/wiki/index.ph ... w_Tutorial