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buildbotics / bbctrl-firmware

Buildbotics CNC Controller Firmware
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Offset axis does not always move as it should after G43 #284

Open Skyler1440 opened 3 years ago

Skyler1440 commented 3 years ago

For some reason, G43 doesn't do anything, rendering the tool offset codes dysfunctional.

jcoffland commented 3 years ago

Can you provide an brief example? Note, you have to select a tool before you can set its length offset.

Skyler1440 commented 3 years ago

For example:

G10 L1 P1 Z1.5 (set tool 1 Z offset from the machine origin to 1.5) T1 M6 G43 (load tool 1 and tool length offsets, Z is at machine 0 and DRO shows Z1.500)

When I run this code, the position readouts don't change.

Thanks for your help!

jcoffland commented 3 years ago

I see the problem. If you run this:

G10 L1 P1 Z1.5
T1 M6 G43
G0 X10

The incorrectly machine moves to (10, 0, 0). However, if you run this:

G10 L1 P1 Z1.5
T1 M6 G43
G0 X10 Z1

The machine goes to the correct position (10, 0, 2.5). The problem is that it's not seeing that the position has changed.