Cura support for Silhouette Alta 3D printer

[GregValiant 1,252]

The retraction distance is how much plastic the extruder pulls back in when there is a travel move.  It reduces the amount to stringing.  You have a bowden setup (as opposed to a direct drive) so about 6mm retraction distance should be good.

I'm curious where that StartUp Gcode came from.

Here is my suggested changes.

 

;----------Alta StartUp Gcode---------
M107 ;turn off fan
G90 ;absolute movement
M82 ;absolute extrusion

G21 ;metric units
M220 S100 ;reset feed rate
M221 S100 ;reset flow rate
G28 ; home all axes
G1 Z10 F600 ; move up
G1 X0 Y-70 F3000 ;move to front
M109 S{material_print_temperature_layer_0} ;set temp and wait
G92 E0 ; reset extruder measure
G1 E50 F1500 ; extrude 50mm of filament at 25mm/sec
G1 F1500 E44 ;retract 6mm
G92 E0 ;reset extruder measure
G1 X-37.984 Y-51.711 F3000 ;travel to smear/smudge start
G1 Z0.300 F600 ;lower to start height
G1 E6 F1500 ;prime
G1 F1500 X-36.594 Y-52.712 E6.79005 ;begin arc
G1 X-33.376 Y-54.825 E7.18850
G1 X-31.774 Y-55.781 E7.22241
G1 X-28.512 Y-57.540 E7.58616
G1 X-26.697 Y-58.422 E7.98434
G1 X-23.446 Y-59.829 E8.04019
G1 X-21.413 Y-60.609 E8.78005
G1 X-18.195 Y-61.684 E8.85674
G1 X-15.980 Y-62.321 E9.57605
G1 X-12.811 Y-63.085 E9.67501
G1 X-10.390 Y-63.561 E10.08386
G1 X-7.329 Y-64.025 E10.37218
G1 X-4.725 Y-64.307 E10.49464
G1 X-1.780 Y-64.497 E10.76990
G1 X-0.510 Y-64.558 E10.90328
G1 X2.780 Y-64.497 E11.16826
G1 X4.725 Y-64.307 E11.31256
G1 X7.329 Y-64.025 E11.56583
G1 X10.390 Y-63.561 E11.72151
G1 X12.811 Y-63.085 E11.96409 ; end arc
G1 F1500 E5.96409
G92 E0
G1 Z5.000 ; raise print head to 5 mm in preparation for first print command
;----------End of StartUp---------