Start Job when head bed within 20-30c of target

[TheRiddick]

Looking to optimise my print process by having the hot end start heating up when my bed is within say 30c of its target temp. ATM it waits until it hits the correct temp and its kind of wasting time.

Is this something that can be done via Simplify3d or should I edit my printers marlin gcode somewhere?

[brian442]

Just edit your starting script so that it heats the bed partially, then starts the extruders, then finishes the bed.

M140 S45 ; heat bed partially
M104 S230 T0 ; start heating extruder
M190 S60 ; finish heating bed
M109 S230 T0 ; wait for extruder to finish heating

The commands above are also explained here:
https://www.simplify3d.com/support/arti ... -tutorial/

[TheRiddick]

Yes that is possible except I don't always have the same bed temps, depends on material. Just thought there was some other way. Doesn't really matter too much, my printer seems to start 20c before bed is at target temp anyway. Must be something in firmware.

[upsm]

depending on your firmware you can configure how "close to target temp" your temperature needs to be for M109 to return