Hello Guest it is May 21, 2019, 05:55:30 PM

Author Topic: Plasma help please  (Read 1244 times)

0 Members and 1 Guest are viewing this topic.

Plasma help please
« on: August 21, 2015, 06:56:32 PM »
Hello all
I have a fairly new 5'X10' CNC plasma table I am doing pretty well drawing in auto cad (self taught just keep trying stuff ) but now I want to cut 6'' donuts with about a four inch hole and the sides don't come out even any body can help me ?

                                                                                                        Thanks
                                                                                           George
« Last Edit: August 22, 2015, 07:27:32 AM by Tweakie.CNC »

Offline BR549

*
  •  6,865 6,865
    • View Profile
Re: Plasma help please
« Reply #1 on: August 22, 2015, 10:18:11 AM »
IF the circles look ROUND in CAD and look round in CAM and look round in the control toolpath then it is a machine problem. It could be backlash OR axis calibration.  OR both.

(;-) TP

Offline Davek0974

*
  •  2,494 2,494
    • View Profile
    • DD Metal Products Ltd
Re: Plasma help please
« Reply #2 on: August 22, 2015, 01:16:51 PM »
Is it belt drive, direct drive, screw drive???

Check for slack belts, loose pinions(not always easy to find), loose pulleys etc first

I would then carry out axis step calibration on all axes.

Does the error get worse the more you run - loosing steps or is it just wrong all the time - see above.


Dave
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives