Messages

1

General Mach Discussion / Re: Question- How to set x,y,z directions on table

« on: December 10, 2012, 11:18:56 PM »

Thanks, I actually figured this out. Now I am noticing another strange phenomenon which I am sure has to do with another setting. This pertains to the "Z" axis height during head movement ( this is a gantry CNC) between cuts.

The cut depth is correct but the travel height of the cutter is reversed. It is actually cutting into the stock when it should be traveling over the stock. In other words the clearance for z is flipped 180 but the cut depth is correct.........This is weird......

What option do I reverse for this?

Thanks again...........

2

G-Code, CAD, and CAM discussions / Why am I always getting big arcs with G2 and G3 codes?

« on: December 09, 2012, 04:34:22 PM »

Every time I run a gcode with g2 or g3 lines, the arcs are somehow converted into big circular paths. I can't figure out what is going on. See attached. Some of these gcodes have been downloaded from the internet so I know they are correct.

See attached.

Gcode 2------below:

N5 G90 G20    
N10 M06 T1    
N15 M03 S1300    
N20 G00 X1.75 Y1    
N25 Z0.25    
N30 G01 Z-0.25 F5    
N35 G04 P500    (0.5 SECOND DWELL BEFORE ARC)
N40 G02 X1.75 Y1 I0.5 J0 F20    
N45 G04 P500    (0.5 SECOND DWELL BEFORE 2ND ARC)
N50 G03 X1.75 Y1 I-0.5 J0    
N55 G00 Z1    
N60 X1.25    
N65 G01 Z-0.75 F5    
N70 G04 P750    (0.75 SECOND DWELL AT BELOW HOLE)
N75 G00 Z0.25    
N80 X2.25    
N87 G04 P750    (0.75 SECOND DWELL AT BELOW HOLE)
N90 G00 Z1    
N95 X0 Y0    
N100 M05    
N105 M30

3

General Mach Discussion / Question- How to set x,y,z directions on table

« on: December 05, 2012, 01:27:55 AM »

I have a question pertaining to setting the motor direction relative to the table. The +x moves left and -x moves right. +Y moves toward me and -Y moves away. The coordinates appear the be reversed. How can I correct this or control the motor direction? There must be a way to reverse motor direction.