search

moggieuk / Happy-Hare

MMU software driver for Klipper (ERCF, Tradrack, Prusa)
GNU General Public License v3.0
395 stars 94 forks source link

Different behaviour when only loading or unloading vs doing a full change #307

Open dzeta621 opened 4 weeks ago

dzeta621 commented 4 weeks ago

I use a kinda dangerous macro to park my toolhead out of the soft travel limits of my printer during tool change and I absolutly need to use a custom macro to restore the old position. For now I added this restore macro on user_post_load_extension and user_post_unload_extension for safety but when I resquest a full change I have a lot of useless moves. Can I somehow detect if i'm loading another filament after the unload for exemple ? This way I can bypass the restore macro when doing a full change.

moggieuk commented 3 weeks ago

I think you can use the available MMU printer variables to determine what you need. Look at next_tool. This should not be set (probably -1) if doing an MMU_EJECT or MMU_UNLOAD rather than a MMU_CHANGE_TOOL.

More details on variables in wiki: https://github.com/moggieuk/Happy-Hare/wiki/Printer-Variables