HD roller print test(successful)/Extruder topper

thingiverse

Update TPU doesn't roll easily as PETG so I'm going to resize the ID up 1.5mm to 2mm. 7mm OD of the sleeve bearing spacers, these I've been printing at 5mm ID. But compression of the Naruto or 3 swirl roller is perfect enough to be snug enough to use a eccentric bolt to adjust wobble on whatever. Close to a finish for this one. Update 7-13-20 Doing a secondary x axis carriage plate for fans/wiring/Bowden tube/etc. Plan is eliminate a lot of weight and stress from the hot end. Going to put these rollers to long term testing allowing everything going into the hot end to roll across the top rail along with the hot end. I might add a motor to mirror the motions of the x axis so it's not being dragged as so much providing a very low friction and direct path for wiring and filament to run. Stay tuned for further tests and updates. As of this moment they work for extruder toppers, but just every so slightly fit onto a rail(could be because of my particular printed parts or material). This is with PETG so there isnt much flex available. Original plan was to print these in TPU so I did plan for some compression of the material. So just be wary when printing with anything less flexible than TPU. As from the title, this is just a flight of fancy test if I can print either backup rollers or ones that dampen the noise a bit in the frame. I tell you, having a pair of mechanics stethoscopes really goes a long way. They fit fine and roll just fine, but may have to give them a little of an angle to seat into the slot better. If anything, these make not bad compact extruder toppers. The naruto one is fun to watch. Give me a couple weeks to get another printer for the farm for beta prints so I can test the longevity of the concept. Customized version of https://www.thingiverse.com/thing:17514 Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=17514