My 2020 version of this is coming together nicely! I started printing a bunch of the pieces with the 2525 file version by mistake so I made a bunch of scrap plastic. Waiting on a dozen or so packets from China to complete the build. I'll try to update as it nears completion.
Thanks again for the cool remix brspartan!
--- Update ---
We have achieved motion and homing all 3 axes!
I have a few more nuts and bolts to attach, wires to connect for the heaters and fans, and put the extruder together before I can do a test print.
One modification I might do here is flip the Z axis control and run the motors on the top, this should give me a few more mm's of Z travel.
Things I've learned:
- The carbon fiber rods I got are slightly under 10mm, so the bushings have a little bit of play. When the belts are snugged up and some shims behind opposite tabs on the two bushing holders the slop is reduced. I'll do some test prints before trying any changes on this just yet, though the next step would be to order some 10mm anodized aluminum and wait... and wait some more, haha.
- When using the RepRapDiscount Full Graphic Smart Controller, the 5V power draw from the Mega is too much for most of the cheapo boards. I will try the "Franken-reg" mod on the board I already fried the regulator on and see if that fixes the problem.
Until then I will just control straight from the PC over USB.
- When using the inductive Z sensor (UPC# 610256310343 - I purchased from Amazon), I made a resistor board to drop the signal voltage to what the Ramps can handle. I did little research on this, but it works, I posted images of the board and connections on here.
- If the wires to the steppers short out on each other and you try to run them it damages the stepper driver board. I had some heat shrink tube move on me and it stopped moving smoothly in one direction, found it to be a bad driver.