Quick-release spool arm
thingiverse
Revamped Reprappro Prusa Mendel spool holder features hassle-free removal of the spool without adjusting nuts or undoing screws. An extended version (spool_arm_v2) is available, 20mm longer than the original. The design improves upon bsthomps' earlier version by allowing easy spool axle extraction from the top arm section and reinforcing the rear support for increased strength. Simply print it out and attach to your printer; adjust the axle support as needed to facilitate smooth removal of the 8mm axle. Remember to also print bsthomps' spool hub supports for a complete setup.
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