Simulating two-sided cutting

[drs...@gmail.com]

Is there any way to simulate two sided cutting where you cut the stock, flip it over, then cut the other side? I can export the simulated first side cut, but can't figure out how to import it as the stock for the second cut. 

For now I'm exporting two meshes and using a second program to intersect the meshes.

[Michael Stockum]

4sure there's!

Write or link a Matrix lib in. (Iused: http://sylvester.jcoglan.com/) . TPL holds all orientations! (position={x y z a b c u v w})!
I interpret abc as toolangles , turnpoint TCP. 
ovverride your cut() to a cut in a point transformed to the other side (i.e. by a=180).
Thats all! 
Works also for full rotary code, (here the Venus from Deskprotos samples :-)):
 

[Joseph Coffland]

This is awesome!

I suppose if you use the spherical tool shape then tool orientation does not matter.  Would you be willing to share your code?  I'd love to see both your TPL and GCode.

[Michael Stockum]

Yes, I use the spherical tool because There's no way to access toolorientation without modifing Camotics sources..
But if I'd mill without moving TCP towards center of the "Ball" it would result in an error.. i.e. Z-height would be one diameter too short, cause milling on the "upside with TCP" and  "downside with TCP+diameter"...

Yes we can share.. Git? Flat copy?

[Joseph Coffland]

Git would be great.

[Michael Stockum]

https://github.com/MopedStockum/CAMotics

[Joseph Coffland]

Ok cool.  So I found the added tpl_lib/sylvester and tpl_lib/tdxf.  Do you have an example CAMotics project that uses these?

[Michael Stockum]

See in docs msnotes...pdf.....
4 Parsing The Pycam gcode towards tpl I've also an js basedParser, (created with peg.js or peggy.js) which is not included at the moment.....
sorry may be later on :-)

[Michael Stockum]

The tdxf is used fore trochoidal milling of dxf shapes, sample also included and somehow mentioned within the pdf!

[Joseph Coffland]

Awesome!  Thanks!

[Michael Stockum]

UR welcome!

Merry Christmas.