Railcore 2 Top Cover Printed Interface

thingiverse

If you plan to enclose your printer and have printed Z yokes, obtain aluminum yokes or print replacements in high-temperature materials. The washers are insufficient insulation when the printer is enclosed, causing your yokes to soften, sag, and eventually fail. Wade noticed that belt cutouts were introduced in corners without cutouts for idler and motor mounts. I fixed this with a new set called Belt Idler Pass Through and Mirror. You'll need two of each for a standard install. Check like Wade did since I don't have a 'standard' RailCore. I accidentally moved a pair of screw holes to 6.34 instead of 7.5, which is now fixed. Steve London pointed out that I forgot the belt cutouts. Now find "BeltPass1" and "BeltPass2," which should fit the corners and pass the belts. Let me know if there are issues since I don't have a normal belt path right now. Tony and I wanted the Railcore 2 to be customizable, but this conflicted with making it an engineering platform rather than a printer. We discussed this at MRRF2019, where Tony had an idea for the cover's design. He explained his concept, and since he'd already cut parts for my top, I implemented his idea. There's one edge that isn't implemented; you can customize it with custom parts or selections from the components provided here. See "How I designed this" for links to F360 archives. You'll want to print these parts out of plastic that will withstand your highest expected temperatures. In my tests, a 100C bed printing ASA for thirty minutes stabilized at 58C, softening my belt retainers (PLA) and causing my belts to fail. Don't be Steve; use higher-temperature plastic for your parts AND the interface. PETG is good up to 70C or so, which is what I used to print the parts. Once installed, the top is just a box with outside dimensions equal to your railcore, less than 7mm thick walls, making it suitable for 1/8", 3mm, 5mm, 1/4", 6mm, and other thicknesses that should work fine. And yes, I know there's debris in the bottom of my printer. I'm working on it.