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Sample GCode to add in a pause...

For 3d Printing Nerds. - This is how you might manually edit your GCode to add in a pause at a specific layer - very useful if you want to manually change filament at a specific height within a print (for multi-colour prints when using a single extruder).

;LAYER:PAUSE
;TYPE:CUSTOM
M83
G1 E-5.000000 F6000
G1 X0.000000 Y0.000000 F9000
M0
G1 E5.000000 F6000
G1 E-5.000000 F6000
M82

A good GCODE reference is: http://reprap.org/wiki/G-code

Suggested GCODE for a blob at the start:

G0 X25 Y25 Z2 F6000 ; Go to the left front corner
G92 E0 ; zero the extruded length
G1 F200 E20 ; Drop a blob
G0 X40 Y40 Z2 F6000 ; Move head away from blob
G92 E0 ; zero the extruded length again
G1 Z15.0 F6000 ;move the platform down 15mm
G92 E0                  ;zero the extruded length
G1 F200 E3              ;extrude 3mm of feed stock
G92 E0                  ;zero the extruded length again

 

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