Post Processor for Mach 3 plasma issue

[Anonymous]

I'm using the Mach 3 Plasma post processor, when i post a program it doesn't have a feed rate value in the program and it posts G3's and G5's instead of M3 and M5 (start and stop of cutting). This is all new to me and i can't figure out how to fix this issue. Any help is greatly appreciated!!

[MoshiurRashid]

Hello.

Thank you for posting. But I suggest you to post this in Fusion 360 Manufacturing forum. There people deal with many post porocessor problems.

https://forums.autodesk.com/t5/fusion-360-manufacture/bd-p/2070

[Anonymous]

Thank you! Will do!!

[seth.madore]

@MoshiurRashid  rather than suggesting that the user post a new thread in the proper forum, it would be better to just tag an employee, such as myself and we can move the thread to the proper location. I'm moving this thread to the MFG forum now 🙂

[seth.madore]

A G3 is an arc move, and I'm not seeing any G5's in your attached screenshot. I am, however, seeing M3's and 5's. Have you run this code on your plasma cutter?

[engineguy]

@Anonymous 

The reason for the apparent lack of Feed rates is that in Mach3 Plasma the feed rate is only reset if a different feed rate is input, if you have left it at say the default 1000 then F1000 will be output in the first operation and will apply to all susequent operations.

BTW Seth @seth.madore  is correct, the M3 and M5 commands are being correctly output for the On/Off.

Here is some example code for 3 different Profiles with all different feed rates for lead ins/outs/cutting.

(OP1 REV1)
N10 G90
N15 G71

(2D Profile Inner)
N20 G0 X12.106 Y-3.114
N25 M3  - - - On
N30 G4 P1.
N35 G1 X15.768 Y-1. F300. - - - Feed In
N40 G1 X17.5 Y0.
N45 G3 X-17.5 I-17.5 J0. F1000. - - - Cutting
N50 G3 X17.5 I17.5 J0.
N55 G1 X15.768 Y1. F300. - - - Feed Out
N60 M5 - - - Off

(2D Profile Outer)
N65 G0 X42.232 Y1.
N70 M3 - - - On
N75 G4 P1.
N80 G1 X40.5 Y0. F200. - - - Feed In
N85 G2 X-40.5 I-40.5 J0. F900. - - - Cutting
N90 G2 X40.5 I40.5 J0.
N95 G1 X42.232 Y-1. F200. - - - Feed Out
N100 M5 - - - Off

(2D Profile Outer Right)
N105 G0 X47.415 Y-2.838
N110 M3 - - - On
N115 G4 P1.
N120 G1 X44.232 Y-1. F600. - - - Feed In
N125 G1 X42.5 Y0.
N130 G3 X-42.5 I-42.5 J0. F1200. - - - Cutting
N135 G3 X42.5 I42.5 J0.
N140 G1 X44.232 Y1. F400. - - - Feed Out
N145 M5 - - -  Off

N150 M30

Hope that helps to clarify things.

Regards

Rob