Spool buffer Hartpa 3

HARTPA V3 Spool buffer for PRUSA MMU
Multimaterial printing on the printer Pruša MMU assumes a gradual exchange of filaments of different colors. The Filament used for printing is redrawn back so that it can be replaced by another. The device uses the gravitational energy to wind the released filament back onto the spool.
Device is upgrade of HARTPA V2. Against HARTPA V2, the structure was reinforced with the rods from the jakl profile. This measure does not distort the frame by the coil weight. The connection to the pulley points of the printer has been adjusted so that the coil is directly connected using PTFE tubes.
1. Finished Parts
Bolt M8 x 80 hex head with 2 pcs
Screw Washer M8 2 pcs
Nut M8 Low 2 pcs
Screw 3x40 with countersunk head 2 pcs
Screws M3 x 25 countersunk head 8 pcs
Nut M3 8 pcs
Screw M3 x 16 for hex wrench 2 pcs
Nut M3 square 2 pcs
Ball Bearings 8/22x7 4 pcs
M10 x 25 hexagon bplt 1 pc
Nut M10 1 pc
Self-adhesive rubber boots 4 pcs
2. Drilling templates