608 bearing supported filament roller
Description
What, _another_ filament roller/holder? There are so many to choose from, so why would I waste time making a new one? I didn't find any filament rollers which used 608 bearings and had the features that I wanted. This roller has these features: . width is adjustable for various spools: ~36mm - ~70mm . designed for integration of 608 bearings (skateboard wheel bearings) . capable of handling various spool internal diameters: 24mm - 59mm . adjustable/installed without tools . doesn't become loose accidentally(flat contact side of threads) . parametric model uses variables for settings which might need to be changed for customization Of course, now we have to mount it to something with a shaft diameter up to 8mm. I have mine on a piece of all-thread suspended over my printer with wires. I have a bunch of these bearings just laying around, so this seemed an ok use for them. Here is a link to the public document: https://cad.onshape.com/documents/0b5fa5c9c1e58a034bfb9643/w/0c8141d7f1cc5e48775e238f/e/2dd7a5c8a4f517c0efe979aa In my shape I have a thread gap of 0.7mm which works best for my printer(Creator Pro). Feel free to make a copy of the model and adjust it to work with your printer tolerances. With the current design, I needed to press in the bearings to my parts. If you have a more precise printer and find that the bearings are loose, you may need to make the bearing sleeve smaller. For example, my bearings OD is 21.96mm and my model has a bearing sleeve ID of 22.5mm but prints the part with an ID of 21.7mm. I have to press these bearings in with some moderate force to my parts. I also included files for FlashForge including supports. I print them with the threads down, so I only need supports in the centre and not within any of the threads. I'm very happy with how this one works. Very tiny friction. I hope this works for you. Met vriendelijk groet! Dustin
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