Hi guys,
I'm using tangential cutting option on Mach 3, on a knife cutting table.
However, there appears to be a fundamental issue.
I am cutting plastic material which is approximately 35mm thick. My Gcode is simple:
G0 X100 Y100 - move to position
G1 Z1 - plunge knife
G1 X10 Y10 - Cut to end position
I am using 2.5D Z control to plunge the knife in and out, hence setting the Z to positive 1 to activate the output.
However, what I expected to happen was for the knife (rotation axis A) to rotate to the correct angle PRIOR to plunging into my material. But it didn't. It rotated after plunging and therefore made a big mess of the material as it rotated.
Now, I can understand the logic behind the action. It can't know which angle to rotate the knife until it reads the G1 X & Y line.
I then tried adding the Z motion to the Cut command:
G1 X10 Y10 Z1
But as you can imagine, the knife rotated to the correct angle as the machine was cutting in the XY direction, and because Mach3 set the speed of the Z movement such that it reach 1 at the same time as X and Y reached 10, then the knife only plunged half way through the cut.
Anyone know a way around this?
Many thanks
Mark