[BUG] Filament swap function may cause x-carriage to crash into top of printer.

[BeauSlim]

Did you test the latest bugfix-2.0.x code?

Yes, and the problem still exists.

Bug Description

At some point in the filament change sequence, the printer very quickly raised the Y axis all the way to the top and crashed it. There was much wailing (me) and gnashing of teeth (the printer).
Digging into the code, it seems that the "park" position is Y +100, and this park function is used by the filament changer.
I would suggest making the default Y +30 instead.

Bug Timeline

Dunno. I am a relatively new CR-30 owner.

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

I think I probably cycled the printer power with the Y at 100, came back later, and used the filament change in the Marlin menu. Yes, I know that homing after power on is always a good idea.

Version of Marlin Firmware

Marlin 2.0.9.1 (Dev build)

Printer model

CR-30

Electronics

No response

Add-ons

none

Bed Leveling

No response

Your Slicer

No response

Host Software

No response

Additional information & file uploads

No response