Weightless extruder mod QQ-S Pro

thingiverse

I struggled a bit to find a easy to print and use "weightless extruder"-mod for the FLSun QQ-S. Mount the extruder nut and bolt through the center hole in the QQ-S-top part. I have used some rubber-bands to fix the string to a flying extruder, and just tied a bottle to the other end as a counter-weight No supports required PLA works great Layer-height 0.2mm, could probably work with higher. Print 2 pulleys and bearing-holders Needs: 2x: 608 ball-bearings for inserting into the pulleys. 2x: M4 x 20 bolt/screw for fixing the bearing-holder in place in place. 2x: M4 bolts and nuts to fix counterweight arm to original extruder-mount-holes. 1x: String 1x: Counterweight (I have used a soda-bottle filled with a bit of water.) M4-bolts will be self-tapping My flying-extruder design: https://www.thingiverse.com/thing:4888099