Pastamatic - Filament Spool Winder for Bambu Lab X1C/P1P AMS (level winder with self reversing leadscrew)

I tried another spool winder but found it finicky and delicate. I designed this winder from scratch to be simple and robust, using the same self reversing leadscrew mechanism found on industrial cable winders Why pick this model: • Prints on a single build plate • Doesn't require heat set inserts or exotic hardware • Fusion and STEP files are available, remixes welcomed • Generous clearances, simple mechanisms • Designed to be a tool, not a project Print time: • ~500 grams of filament • ~22 hours on Bambu Lab X1 • ~5 minute assembly • ~2 minute spool transfer Hardware requirements: • 14x 608 skate bearings • A scrap of PTFE tubing • An electric screwdriver or drill with a bit cut from ¼ inch hex stock (most cheap quick change Philips bits in the US fit this requirement) Print settings: • Any. I used "0.16mm Optimal" in BambuSlicer with 5% adaptive cubic infill  • Use 100% concentric infill for spindle_male_driven • Try the STLs if you have a problem with the 3mf files. I’ve added (xN) to each file name so you know how many to print Materials: • Any. I used Polyterra and iiidmax PLA+ • Use TPU for tpu_consumable_wiper_blade. I used Priline 98a. The wiper blades aren’t 100% required but they help keep the windings nice and tight Assembly and usage: • Demo video • Assembly video • The side that says “Pastamatic" needs to face outwards, away from the spool • The filament needs to come in under the target spool, like this: O____O • [not like this: O‾”‾”‾”O] • The drill/driver needs to run clockwise, as though you're screwing something in • Accelerate slowly until the winder gets started Change log • 2023-05-28 • Initial release • 2023-05-29 • Fix a minor export glitch in "leadscrew_tooth" • Increase the number of “pin_short” instances in the 3mf from 6x to 8x • 2023-05-30 • Add a second prearranged 3mf with two plates to avoid overlap warnings • Disable autogenerated brims for the single plate 3mf  • Add STLs for people who have trouble with the 3mf • 2023-06-03 • Add a ring to passive_target_cradle to prevent the far end of the target spool lifting if a user lets the the drill hang loose • Add a pin to driven_target_cradle prevent the leadscrew popping out • Fix a minor clearance issue where a dovetail didn't fit quite right • 2023-06-05 • Revert passive_target_cradle to the old drop-in style • Posted a spindle retention clip as a remix • 2023-09-30 • Reduce chamfer on the crossbars to prevent them falling over when bed adhesion is poor • Add some holes to the crossbars to make them easier to screw down • Add some popular acessories to the all-in-one .3mf How to contribute: • Post your make, it keeps me motivated to improve the model when I see people using it! • Post your feedback, idea or remix in the comments! • There are a few improvements and accessories in development as remixes, check those out if you‘re up for the alpha/beta tester experience • Adapter for 37mm gear motor • Source spool holder for 5 KG spools Credits: • @MiklosKiszely_486882 for the original idea • @Psycho Shaft for the drag/tensioner concept • thang010146 for YouTube videos of mechanical mechanisms, particularly the self reversing leadscrew for a level cable winder