My name’s Axel, and I’m super happy to finally join the community. About a year ago, I started printing parts for the MPCNC, and near the end of the printing, I realized that I had gone with the 1" stainless size. I had trouble sourcing cheap tubing, so I gave up, until now! I ended up building it to accept 4’x8’ sheet-goods, and added enough z-rail to max out the lead screws, which means it can raise up at least 5" (I haven’t measured).
Here’s a a link to the very sparse album of the build, including the first (really boring) cut!
I’ve got some tips, and some questions too:
- Don't be dumb and buy 3/4" pipe like I did. We took a tape measure and said "yep, that's an inch", and it actually measures 1.05", which is beyond the tolerance of the parts.
- Buy all your accessories while building, so it gets in when you're ready! I only have a 1/4" v-bit available right now and I'm waiting for Amazon to get me a new collet and bits.
- I ran the Y and Z motors on the far side using an old Cat-5 cable. It has eight wires, which is sufficient for the two 4-pin motors.
- How are y'all keeping things square? I have a bit of play between the side rollers because the tubing is just so long. And the lead screws get a little out of line now and then (I can even those up pretty easily). And I don't even know how to square up the long-side.
- G-code: how are you guys generating yours? I tried Instructables' Easel, which doesn't seem to do anything on the lowrider. I'm trying Fusion360 now, but the post-processor scripts are raising the Z up above the material. Anyone got a post-process config for the Lowrider?
- How are you guys Zeroing the machine? I'm just putting the bit up against the material to cut, and taking that as 0,0,0.