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