Hello,
This is my first post and "hi everyone".
I recently started with milling machines (again.. its been 20 years ago and i aint had problems,.. just Carbon cutting) - but i am more a FDM - SLA - mSLA guy.
Anyway
Pre Problem : I bought a CNC 6040 which is chinaware from a german warehouse - aside from that it seemed to be a used one i was quit happy except the Y-Axis which is not stiff enough (not railed).
When i started the first milling trys on MDF i noticed that several things happen and can be reduced to the same problem:
Problem 1: Multilayer Carving - the second and third layers are always shifted between 1 and 2 mm to the right.
Switched X and Y Axis and the problem persists - so its shifting upwards about 1-2 mm.
I read it might be a defective driver - well.... tell me ?
Problem 2:
Z-axis does start to stutter/Jitter SOMETIMES when moving down - sounds it like skipping steps (same as you would hear when watching the video - but more seldom but heavier.. and you see the handwheel jumps)
What RALLY makes me wonder is: Jog Movements or using Arrow Keys with Mach3 makes no problem - Typing in the MDI related gcode like x-140 makes the trouble.
Thanks for ANY input!
Video :
https://youtu.be/zKtvBqYzrs4
Machine :
CNC 6040 - watercooled
1.5 kw
BSMCE04U-PP Board
TX14207 Drivers
If you need anything else, please drop me a line.
Thank you VERY MUCH