A20M A10M BigMac MKII 5015 Blower

thingiverse

I love the BigMac design for the A20M/A10M - thanks to dancollins - but I had some cooling troubles at high print speed, so I remixed the part cooler for a 5015 blower fan. Now it works great - even at high print speeds (80 mm/s). You need 2x 3mm screws that are 12mm long and 2x 3mm nuts - the blower itself holds in place just by clamping - if you want, you can use some glue at this point. These are Cura 4.4 settings for the filament change (I USE A PURGE-BUCKET !!) and Marlin 2.0 - if you like to print with a purge tower, do NOT use the code below!! 1. Heat the hotend. 2. Load the filament at the right extruder (E0) till it extrudes a little - then retract 70mm. 3. Load the filament at the left extruder (E1) till it extrudes a little - then retract 5mm (just a normal retract so that the filament will not drop from the nozzle). 4. Start printing. ; Start code G92 E0 G1 F1800 E-70 G28 G29 ; End code G91 G1 F1800 E-5 G1 Z2000 Z50 G90 G1 X120 Y250 F1500 M104 S0 M106 S0 M140 S0 M84 ; Start Extruder 1 G92 E0 G1 X-10.5 F6000 G1 E70 F3000 G92 E0 G1 E30 F200 G92 E0 G4 S3 G0 F10000 ; End Extruder 1 G92 E0 G1 E-5 F6000 G1 X-10.5 F8000 G1 E-70 F3000 G92 E0 ; Start Extruder 2 G92 E0 G1 X-10.5 F6000 G1 E70 F3000 G92 E0 G1 E30 F200 G92 E0 G4 S3 G0 F10000 ; End Extruder 2 G92 E0 G1 E-5 F6000 G1 X-10.5 F8000 G1 E-70 F3000 G92 E0