M109 question

Torro

Hi,

I'm writing a macro to Shut the printer down.
before M81, the nozzle should cool down.
M109 R45.

How could i Do this, when the nozzle is at room Temperature and i don't want it to heat up to 45°?

Would M109 R<45 work?

Thanks!

aidar

Hi.

You should read Gcode wiki : M81 S1 ; turn power off when all thermostatic fans have turned off.
So just set your hotend fan as thermostatic and use M81 S1 for power off.

Torro

Hi,

You're right. Sorry.