Cut speed changing

[trucks1948]

I have had my machine all apart in a move. I run mach3 and sheetcam.when i try to run a file without the torch on the speed changes from 100 ipm to .3 ipm .It changes right after the M03 line where the torch would fire. I must have a setting off somewhere, but i can't figure it out. Any help would be appreciated.

[acourtjester]

Normally the speed only changes when told, it almost sounds like it see the pierce delay value as a speed change.
N0280 M03
N0290 G04 P0.5
N0300 G01 Z0.060 F30.0
Here is a few lines where you can see the pierce delay G04 p0.5 and then the torch drop G01 Z0.060 F30, f30 being the new speed change for the torch drop. The next line would be speed change for cutting speed.

have you changed the post processor, almost looks like a router or milling G-code, lowering the bit at very low speed. One of the first few line shows the post processor name that was used to generate the G-code

[trucks1948]

thank you