Useless software?

[BillieRuben]

I had a similar issue to the OP, Just linking this here in case it’s helpful, my solution is the last reply in the thread.

Detect movement, terminate laser engraving! Acceleration fluctuation

I had this problem too, just adding what worked for me, in case it helps anyone else struggling with the same. I had to change the $262 value to change the G-shock threshold. I ended up disabling mine entirely by setting $262=0. This means I will not get an alarm if the laser cutter falls, but I never leave it unattended while in use, so this is fine for me, but please take the time to consider this as you are disabling a safety feature. Please note, too, this fix only works for firmware 1.78 …

I also set the transfer mode to synchronus (in Edit>Device settings) just in case: What is Buffered vs Synchronous Transfer Mode

Also that note I have about adding $H to your start gcode, could be the fix for your bounding error, depending on the cause of it.