Thanks!Be careful when you make the rollers- the first set I tried had much higher crowning and it caused the belt to fold in 3 lengthwise. There might be an application for that but I'm not sure what... My rollers are 80 mm long and about 40 mm diameter, with the center being about 1.5 mm larger diameter than the ends (not including the chamfered edges).
I took it to the MakerSpace last night and people were playing with it. I shot some video with my phone and will post it later today. It was a rainy evening, but the generator was still throwing off painful sparks about 150 mm long. It will be much better in dry winter air.
3D Printed Van De Graaff Ge...View Instructable »
Meetings on Tuesday nights (except this Tuesday, I think because of 4th of July). Not so sure about Thursdays any more. There are currently 4 people building 3D printers at the space, so you'll be in good company.
Cast aluminum tooling plate is anything but exotic. It is standard feed stock for every machine shop on the planet. Maybe it's called something else where you live, but I guarantee that if there's a metal shop or factory near you, there's a source of cast and milled aluminum plate.Regular aluminum plate is extruded and always warped. It will not be flat enough to print on, especially in the size you're trying to use. I don't think you'll be able to force it flat by bolting it to a frame.If you can't find a local source, there's always ebay- lots of tooling plate listings there. Get an oversized piece and you can cut it to the size you need with any saw that will cut aluminum- a hack saw, a sawzall, jig saw, or table saw with a carbide blade.
Thanks. I'd probably go a little thicker than the 1/4" plate I used, but the mass is going to get pretty high- is your bed moving in the Z axis? Tooling plate won't warp much when heated. If you live in the Milwaukee or Minneapolis area, Howard Precision Metals sells cast tooling plate cutoffs for $2.50 per lb.
Very good! I have an ETX-90 that I've been looking to mount this way. You just saved me a whole lot of trouble!
Space Laser Manual Go-To Fo...View Instructable »
Safety is always a good idea! What sort of fuse did you use? My printer's bed uses about 20A at 24V...
3D Printer Bed Upgrade/Repl...View Instructable »