|CNC mark zero point five.|
I bought the zero backslash leadnuts and threaded couplers from dumpster cnc. The quality of the parts seems to be very good. The only complain is that the couplers, while made for a metric system, use imperial hex grub screws for tightening the coupler to the rods and the axle. And of course, i have no imperial hex keys. I guess a trip to the hardware store is needed, or maybe i will replace those with my own screws.
As far as the laser cut parts for the machine go, they're mostly 6,6mm delrin. Wised up from previous mistakes, i tried to make them as adjustable as possible - no exact positions for fixing screws but rather grooves where the screws can be slided around at least a little. Nevertheless, many parts didn't fit at all as is, i had to saw, drill etc. them to bolt my Frankenstein CNC together. Its surprising how despite checking measurements multiple times, and even making a 3D version of the finished gear to see everything fits together before ordering, when i actually get the stuff on my hands, it rarely works the first time.
In theory, the CNC is now built - i have all axes assembled, motors and lead screws in place etc. Unfortunately, i didn't have the time to connect the electronics and bolt on the dremel-like cheap Cotech tool to actually try it out. The design is far, far away from being optimal, so it will be interesting to see what happens when i do. But that will have to wait untill next time...