[Stnq]

Hello,
I have a problem with my plasma cutter, running on mach3 software. Everything is leveled and straight, it's ok when I cut 2-3mm steel, but when I go to 10mm, it rarely cuts it like it should, more often than not it's something like in the first picture. When cutting straight (like squares) it's ok, when cutting arcs and circles it makes this...angled profile? No idea even how to name it. I use Stanko plasma machine with 130A limit, I tried to cut it at 70 and square looks OK, circles do not. I ramped it up all the way to 120 and it produced similar results. I have 4 bars of air and I have no idea how to approach this problem. I do not have experience in this field, I'm setting it up for my friend. Thank you for all the help.

This is the G-code I use for 66mm circle:



( circle_test 3/15/2016 3:36:09 PM )
G21 G90 G64
G0 Z-2.0
( move to the X,Y location of first toolpath )
( Profile1 )
G0 X67.4195 Y53.8378
G1 F500.0 Z5.0
( pierce height )
G0 Z5
( torch on )
M3
G4 P1
( plunge to cuting depth )
G1 Z5.0 F500.0
G3 F400.0 X66.3032 Y49.7447 I1.4884 J-2.6047
G2 X70.75 Y33.0 I-29.3032 J-16.7447
G2 X20.125 Y3.7716 I-33.75 J0.0
G2 Y62.2284 I16.875 J29.2284
G2 X66.3032 Y49.7447 I16.875 J-29.2284
G3 X70.3964 Y48.6284 I2.6047 J1.4884
( torch off )
G4 P0.5
M5
( small delay - s )
G4 P0.5
G0 Z-2
M30

Can't see anything wrong with it, or with the machine. I'm simply lost.

[bytor]

See my response here:
http://www.cnczone.com/forums/mach-p...-software.html
http://www.cnczone.com/forums/mach-p...-software.html

[Stnq]

Thank you very much, I posted a response there, we might aswell transfer our discussion there