Hi everyone,
I have recently mounted an A-axis (along X) on our mill and modified the Mach3 post according to the this post (https://forums.autodesk.com/t5/hsm-post-processor-forum/how-to-set-up-a-4-5-axis-machine-configurati...).
Long story short: I lost my post and now I am trying to recreate what I did before to make it work. Unfortunately, I must be missing something. I remember that I had to change the value for var tcp in addition to the above, but when I tried that it didn't get me the desired results.
- Below attached are my post and the file I am using to prove the code as a zip-file -
What I am expecting: The part is a block (100mm X 50mm X 50mm) and I want a single straight toolpath along the middle of two of the faces, therefore I am expecting something like this (code shortened, not actual machine code):
G54 //cut along first face
A0.
M9
G0 X0. Y0.
G43 Z15. H1
Z5.
G1 Z0. F250.
X100.
Z5.
G0 Z15.
G28 G91 Z0.
G90
A90. //turn to second face and exactly same cut on here
M9
G0 X0. Y0.
G43 Z15. H1
Z5.
G1 Z0. F250.
X100.
Z5.
G0 Z15.
G28 G91 Z0.
G90
Here is the error I am seeing for var tcp = true: the entire Coordinate System is rotated whenever A moves, additionally it seems to want to go to the projected "pre-rotation" coordinates.
G54 //first cut, everything seems fine
G0 A0.
M9
G0 X0. Y0.
G43 Z15. H1
Z5.
G1 Z0. F250.
X100.
Z5.
G0 Z15.
G28 G91 Z0.
G90
(TRACE2)
A90. //rotation works fine
M9
G0 X0. Y-40. //wrong y value
G43 Z-25. H1 // z seems to now be y
Y-30. // y seems to now be negative z
G1 Y-25. F250.
X100.
Y-30.
G0 Y-40.
Here is the error I am seeing for var tcp = false: The coordinate system stays put (which is a success I guess) but the Z and Y values are still wrong.
G54
G0 A0. //first cut all fine
M9
G0 X0. Y0.
G43 Z15. H1
Z5.
G1 Z0. F250.
X100.
Z5.
G0 Z15.
G28 G91 Z0.
G90
(TRACE2)
A90. //rotates just fine
M9
G0 X0. Y-25. // y assumes the "pre-rotation" position of the cut (a negative 25mm offset)
G43 Z40. H1 // z assumes a positive 25mm offset
Z30.
G1 Z25. F250.
X100.
Z30.
G0 Z40.
Thanks for sticking with me until now.
As mentioned above the post and the part are attached to make recreation easier. Any ideas are welcome as I have run out of them by now.
I am using SolidWorks2019 and HSM2020.
All the best,
Felix
