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gasserman · Post by **gasserman** » Wed Apr 01, 2015 8:34 am

hello trying to cut acircle with circle in middle have put each circle on its own layer but both circles look egg shaped and off center ,using sheet cam ,please help

Post by **tnbndr** » Wed Apr 01, 2015 8:41 am

On what table, plasma with what software?
Try a search in the different forums.

See this:
http://www.plasmaspider.com/viewtopic.php?f=4&t=16123

gasserman · Post by **gasserman** » Wed Apr 01, 2015 8:50 am

we havbe retro fitted a farley wizard table with stepper motors torch height control floating z ,running mach 3 and sheet cam

gasserman · Post by **gasserman** » Wed Apr 01, 2015 8:51 am

also when cutting a round disc circle start and finish is different

Post by **chasxjs** » Wed Apr 01, 2015 9:11 am

If your start and finish positions are different, you either are loosing steps, or you have excessive play in the axis drives. What type of drive system are you using? Chain, rack and pinion, leadscrews?
Energize the stepper motors and then try to manually move them back and forth while looking for any play. Double check the gears on the motors.
Also it may help to post pictures.

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