Programatic set Z Zero doesn't work when bitsetter enabled

Software Carbide Motion
1

When the Bitsetter is enabled, programmaticly setting Z Z doesn’t work.

NOTE - if you enable or disable the bitsetter, you must quit CM and restart it before continuing.

With the BitSetter disabled, the following quick action code sets Z Zero 50 mm below machine Z Zero. Since the Z axis is positioned to machine Z=-5mm, when complete the Position shows Z as 45mm, as expected.

G21 G90 G54
G53 G0Z-5
G10 L2 P1 Z50

Once the BitSetter is enabled, the same code end up with the Z Position (on my machine, with this bit) is now 126.975.

Is this a bug? Is there any way to set Z Zero that works as expected regardless of the bitsetter is enabled or not?

2

If the betsetter is enabled, it’s also applying the Tool Length Offset. If the new tool is 81.975 shorter than the previous tool, I would expect it to read 126.975.
As a test, include a G49 in your macro to cancel the TLO, and see what it reads.

You do not have to restart CM when changing the bitsetter setting. You do need to re-zero, because you have effectively turned ON/OFF the TLO.

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