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General Mach Discussion / Thermal Height Control (THC) bouncing problem. CNC Plasma
« on: June 01, 2012, 02:53:08 PM »
I have a Plasma Route CNC plasma cutting table with 3 axis stepper motor set up. It is running mach and has a thermal height control (THC) that the company provided. The THC has a "brain" that senses off the plasma cutter and sends information to Mach 3.
My Problem:
I can cut with no problem when The THC is turned off. The cut is very smooth and almost straight up and down. When I turn the THC on the Z axis jumps up and down continuously during cutting which produces a terrible cut (jagged and tapered).
Question:
How can I adjust the THC so that it cuts smooth like it does without it on. I have to Use the THC because all the plates I get are always bowed.
I'm in a pinch and need this quick, Please help.
My Problem:
I can cut with no problem when The THC is turned off. The cut is very smooth and almost straight up and down. When I turn the THC on the Z axis jumps up and down continuously during cutting which produces a terrible cut (jagged and tapered).
Question:
How can I adjust the THC so that it cuts smooth like it does without it on. I have to Use the THC because all the plates I get are always bowed.
I'm in a pinch and need this quick, Please help.