Advice desperately needed. I upgraded my Replicator 2 this weekend with a heated bed so that I can help with printing the Prusa face shields in PETG.
The problem I have is that at the very start of the print the nozzle sits over the heated build plate and purges a blob before commencing the print. The nozzle all too frequently drags this blob over the plate and spoils the print. I would prefer to do a slow wipe at the start but don't know how to program this.
This is the gcode I am using within Simplify3D:;
**** Replicator 2 start.gcode ****
M73 P0 ; enable build progress
G162 X Y F3000 ; home XY maximum
G161 Z F1200 ; home Z minimum
G92 Z-12 ; set Z to -12
G1 Z0 ; move Z to 0
G161 Z F100 ; home Z slowly
M132 X Y Z A B ; recall home offsets
G1 X-145 Y-75 Z30 F9000 ; move to wait position off table
G130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heating
M126 S[fan_speed_pwm]
M140 S[bed0_temperature]
M134 T0
M104 S[extruder0_temperature] T0
M133 T0 ; stabilize extruder temperature
G130 X127 Y127 Z40 A127 B127 ; default stepper Vrefs
G92 A0 ; zero extruder
G1 Z0.4 ; position nozzle
G1 E25 F300 ; purge nozzle
G1 X-140 Y-70 Z0.15 F1200 ; slow wipe
G1 X-135 Y-65 Z0.5 F1200 ; lift
G92 A0 ; zero extruder
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****
I got this from the internet, posted by some kind gent whose name I don't know.
The heated build plate is from IDE in Germany and is physically larger that the stock unheated bed. Its measurements are 318 x 156.
I'd like to get this sorted so that I can get on with printing the face shields so advice would be very much appreciated/
Thanks in anticipation.
Jim
