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In Cura, for manipulating new STL files:
*Set Print Speed to 40 mm/s
*Printing Temp to 185
*Bed Temp to 62
*Filament Diameter to 2.94
*Packing Density to 1.00
*
*Nozzle Size to 0.485
*Retraction Minimum Travel to 2 mm
*Retraction Speed to 40
*Retraction distance to 3
*Travel Speed to 120 mm/s
*Max Z Speed to 3
*Bottom Layer Speed to 20
*Cooling Minimum Time to 10
*Enable Cooling Fan
*Initial Layer Thickness to 0

Start G-code should look something like this:
*G21        ;metric values
*G90        ;absolute positioning
*M107       ;start with the fan off
*G28 X0 Y0  ;move X/Y to min endstops
*G28 Z0     ;move Z to min endstops
*G92 X0 Y0 Z0 E0         ;reset software position to front/left/z=0.0
*G1 Z0.0 F{max_z_speed}      ;Move NOWHERE at max Z speed