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**General Mach Discussion / feedrate & units per min are different**

« **on:**October 22, 2008, 11:10:58 PM »

After a tool change, the speeds specified by the Gcode seem to be ignored and the speed in "motor tuning" is used. Before the tool change everything works as planned. I am using the latest legacy mach 3 and Gcode from RhinoCam. I have mach3 set to stop and wait upon tool change.

It happened specifically here:

X-0.4673 Y-0.1964

X-0.5287 Y-0.3053

Z0.1250 F15.0

(Deep Drill )

G00 Z0.0000

G00 X0.0000 Y0.0000

M6 T8

M03 S10000

X0.0000 Y0.0000 Z0.1141

G83 X0.0000 Y0.0000 Z-0.3 R0.1 Q0.05

G80

G01 Z0.1141 F4.0

(2 1/2 Axis Pocketing)

G00 Z0.0000

G00 X0.0000 Y0.0000

M6 T2

M03 S10000

X-0.1066 Y-0.1975 Z0.0312 F15.0

Z-0.0196 F1.0

X0.1066 F3.0

X0.1177 Y-0.1911

X0.2244 Y-0.0064

Y0.0064

X0.1177 Y0.1911

X0.1066 Y0.1975

X-0.1066

X-0.1178 Y0.1911

X-0.2244 Y0.0064

Y-0.0064

X-0.1177 Y-0.1911

X-0.1066 Y-0.1975

Z-0.0392

X0.1066

X0.1177 Y-0.1911

X0.2244 Y-0.0064

Y0.0064

X0.1177 Y0.1911

X0.1066 Y0.1975

X-0.1066

Instead of deep drilling at 4 ipm, it did it at my Z motor tune speed of 12.... Then instead of profiling at 3 IPM it went at 20. The FRO says the correct speed... but units/min says the motor tune speed...

Is there some setting in general config I may be missing?

It happened specifically here:

X-0.4673 Y-0.1964

X-0.5287 Y-0.3053

Z0.1250 F15.0

(Deep Drill )

G00 Z0.0000

G00 X0.0000 Y0.0000

M6 T8

M03 S10000

X0.0000 Y0.0000 Z0.1141

G83 X0.0000 Y0.0000 Z-0.3 R0.1 Q0.05

G80

G01 Z0.1141 F4.0

(2 1/2 Axis Pocketing)

G00 Z0.0000

G00 X0.0000 Y0.0000

M6 T2

M03 S10000

X-0.1066 Y-0.1975 Z0.0312 F15.0

Z-0.0196 F1.0

X0.1066 F3.0

X0.1177 Y-0.1911

X0.2244 Y-0.0064

Y0.0064

X0.1177 Y0.1911

X0.1066 Y0.1975

X-0.1066

X-0.1178 Y0.1911

X-0.2244 Y0.0064

Y-0.0064

X-0.1177 Y-0.1911

X-0.1066 Y-0.1975

Z-0.0392

X0.1066

X0.1177 Y-0.1911

X0.2244 Y-0.0064

Y0.0064

X0.1177 Y0.1911

X0.1066 Y0.1975

X-0.1066

Instead of deep drilling at 4 ipm, it did it at my Z motor tune speed of 12.... Then instead of profiling at 3 IPM it went at 20. The FRO says the correct speed... but units/min says the motor tune speed...

Is there some setting in general config I may be missing?