Machine 3 - 8020 + Linear Rail + High Speed Ballscrews + GRBL
Hey!
First thread here, and 3rd machine for me. I started with an OXBuild, then made a ballscew version, and this will hopefully be my final one for another year or two lol.
Still in design phase, I just sold my current one this week. Should ship out in a week or two.
Specs:
1500x1000 frame (40120 Y's, 80160 X, 4040 supports)
2*4 minimum cut area for sheet goods. Looks like 28x50 right now. 165mm or 6.5" of Z stroke at the moment!
20mm Genuine HIWIN rails, 12mm for Z. Dual carriages everywhere
3/4" Bed + 1/2" MDF spoiler, re-glued when faced off completely.
475 oz in Nema 23's, up to 3k rpm
48V 15A PSU
4A TB6600 drivers (2nd time, I enjoy them and the price!) + Arduino Uno + GRBL
Prox Switches
16 or 2010 Y dual screws, 20 or 2510 X screw (gives a 0.0005 resolution)
1.5kw air cooled spindle + VFD, 220V
Theoretical rapid speeds: 13.4m/min (525ipm) X, 19m/min (700ipm) Y, 10m/min (400ipm) or so Z
Welded steel tubing table (2*2, guy at work will weld it up for me + I just pin the legs on at home)
So, heres the pics for now. Ordering parts sometime soon, working on getting everything modeled and made in 3D first. Ill make my own plates and end mounts at work! (machine shop with 4 mills 7 lathes + a dozen Haas')
ANY recommendations would be appreciated, except those against the TB6600's. I get it, they are cheap and may die. Thats why I bought 5
(How do I attach photos?)
Weak points for me: Gantry plate shape + thickness (3/4 6061? Could use the inspiration!)
Mounting X Ballscrew (behind extrusion? Above? Pics again would be nice)
Prox switches off 5V supply (Enough? Use my 24V + resistors instead?)
Different style X axis? 2 Extrusions along some plate aluminum?
Ballscrew choice. I think its a matter of like 25$ to go from 16 to 20 on the Y and 20$ for 20 to 25 for X. May as well go beefy huh?
Luthier/Woodworker/Machinist in NS, Canada.