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Author Topic: Mach3 ignoring A coordinates when using YtoA PostProcessor?  (Read 1390 times)

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I recently added a Sherline 4" rotary table to my CNCRP Pro 48X96, and after getting the motor configured and moving right, I'm noticing some odd behavior from even simple toolpaths created with VCarve Pro 8 and the Mach3 YtoA post processor...

A toolpath of a simple profile of a box only produces a line cut along the X axis. The first problem seems to occur at N260, the A- move. It appears that Mach just ignores it, as there's no delay on the X axis moves. Same for the A+ move in N280. I can manually move the A axis with the hotkeys and the pendant, commands typed in at the MDI also work correctly, and A axis commands prior to line 260 will cause the the table to move into correct position.

Anyone have any ideas?

Code: [Select]
( Box1YtoA )
( File created: Thursday May 05 2016 - 09:50 AM)
( for Mach2/3 from Vectric )
( Material Size)
( X= 4.000, Z= 0.688)
( Diameter = 1.3760 Inches)
( Y Values are wrapped around the X axis )
( Y Values are output as A )
(Toolpaths used in this file:)
(Tools used in this file: )
(1 = End Mill {0.250 inch})
N130 G00G20G17G90G40G49G80
N140 G70G91.1
N150 T1M06
N160 G00G43Z2.0000H1
N170 S12000M03
N180(Toolpath:- Box1)
N200 G94
N210 A0.0000 X0.0000 Z2.0000 F100.0
N220 G00 X-1.0000 A83.2787 Z0.9380
N230 G00 X-1.0000 A83.2787 Z0.6880
N240 G1 X-1.0000 A83.2787 Z0.5510 F30.0
N250 G1 X1.0000 A83.2787 Z0.5510 F100.0
N260 G1 X1.0000 A-83.2787 Z0.5510
N270 G1 X-1.0000 A-83.2787 Z0.5510
N280 G1 X-1.0000 A83.2787 Z0.5510
N290 G00 X-1.0000 A83.2787 Z0.9380
N300 G00 Z2.0000
N310 G00 A0.0000 X0.0000
N320 M09
N330 M30

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Re: Mach3 ignoring A coordinates when using YtoA PostProcessor?
« Reply #1 on: May 06, 2016, 02:55:20 AM »
Do you have Rot 360 Rollover chosen in General Config? think if you have that then -A commands are not valid.
Re: Mach3 ignoring A coordinates when using YtoA PostProcessor?
« Reply #2 on: May 06, 2016, 09:32:30 AM »
That seemed to do it. I'm surprised and disappointed that there was no error message and that when typed in the command line it would work. Either way, thanks for your help.