prime-warm script

; Select new extruder
T<EXT+0>
; Warm it up, and wait till it's warm
M109 S<TEMP>
; You may want to prime some filament here
G28 X Y Z ; move X/Y to min endstops
G29 ; Autolevel Bilinear Mesh
G1  Z8.0 F600; move bed down 8mm
G1 X0 Y0 F9000 ;move carriage to X0 Y0 - DO NOT G28 WILL RESET BED LEVELING
G92 E0 ;rezero extruder
G1 X10.0 Y5.0 Z0.3 F600; move to beginning of wipe position 0.3mm off of bed
G1 E5  F1800 ; advance filament to overcome the 5mm retraction at print end
G1 X50 E8 F1800; Wipe 50mm while extruding 8mm at 30mm/s
G4 S2 ; dwell 2 seconds - ;wait for nozzle ooze
G1  X70 F250; move right 20 to complete the wipe
G92 E0 ; zero the extruded length again