I´m used to model a car wheel, or a tire, with the sketch revolution. Thats ok.
But to add the "tire treads", I got stucked. My approach is design the tread at a sketch plane tangent to the "basic clean tire".
Then pad the sketch, and do a polarpattern to this pad. But I´ve tried a lot, read the help and faqs, tried another transformations... and no success to figure out how to command the revolution around the right axis.
The file is attached, any hint welcome.
OS: Windows 7
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.15.4671 (Git)
Python version: 2.7.8
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17