I didn’t take any pictures, but I did record some video. https://www.youtube.com/watch?v=zWrBgTnJXZ0 She’s a 4’ x 4’ x 6" beast, but from the start I was having problems with the top corner parts from the kit breaking as I was trying to tighten them. I have a very cheap and crappy 3d printer (Tronxy xy-100) that I tried to make the parts on (before I bought the kit) that I was able to make replacement parts that mostly work.
Later I noticed one of the bearings on the x-axis was spinning freely. When I looked closer, I seen there was a crack on part. I glued it with abs and acetone to close the gap.
I got her running and I was screwing up the feed rates, depth per cut, you name it, I did it wrong. When I thought I was comfortable trying to make cuts in pieces of furniture I had spent a lot of time on making, I’m seeing the bearings are chewing up the conduit. You can see a little of this in the video around the 30 second mark.
I sanded the flat spots a little, rotated the conduit, and replaced some bearings I couldn’t easily clean the metal off of. Does anyone have a clue how to fix this? Should I have bought smoother conduit, sanded it before I started building, or is this just normal? I only ask because all of this started when I noticed my x-axis seems to dragging. Hence rabbit hole of finding the loose bearing, then the crack, then the gouging of the conduit.
Conduit is cheap enough, if I have to source more. I just don’t like messing around too much with the plastic parts, since I keep breaking them.
Maybe I can steal the hotend and extruder off my crappy printer and add them to the mpcnc to make a set of replacement parts.