This is my Mini CoreXY 3D printer that I designed to use a bunch of old parts I had laying around. This printer features...
---A compact design
---High quality Misumi linear motion parts
---RADDS/Due 32-bit electronics
---TMC2130 and RAPS 128 stepper motor drivers
------1/256th stepping rate
---0.9Deg XY Steppers for high resolution movement
---24v Power for smoother stepper movement
---Dual Z axis bed leveling
---BLTouch bed leveling
---Dual Lead screws for superior stability
---Titan Bowden Extruder
---Dual fan part cooling
---Laser cut acrylic electronics enclosure
This printer is still a work in progress. I have the printer mostly built and expect to finish building, configuring, and tuning it by the end of march. I have previously rebuilt one of my printers with parts I designed but this will be my first printer I designed and built from scratch. I expect it to print with extreme quality. I will update this page with my progress, and eventual videos of the printer printing upon completion. A complete parts list, a tutorial, and a marlin config are in the works as well. Most of the parts are finalized.
All parts were designed in AutoCad 2018. As stated this printer was designed to mostly use parts I had laying around. But my goal was still to make it cheap, sturdy and very very high quality. Nylock nuts are used everywhere possible for minimal maintenance and sturdy composition. All parts were printed with high glass transition temperature plastics so the printer could be enclosed. Most of the pieces were printed in either CPE, Colorfab XT, or PCTG plastic. The feet however were printed with ninjaflex. Most parts were printed with 100% infill, or 40% for the corners. The printer will run marlin, as I believe it to be most compatible with the features used in this build.
Full Size Adjustments
Because this printer was designed to use old parts I had laying around, it does not print to the full size of the print bed as I was bottle necked by the length of my extrusions. However, none of the printed parts in this design need to be adjusted should anyone build my design and expand it to print a full 200mm^3. To print to this size you would need...
---8x 2020 Extrusions, 315mm Length
---4x 2020 Extrusions, 370mm Length
---2x 2020 Extrusions, 330mm Length
---2x 10mm Dia Smooth Rod, 308mm Length
---2x 8mm Dia Smooth Rod, 260mm Length
---4x 8mm Dia Smooth Rod, 380mm Length
---2x T8 Lead Screw, 358mm Length
Printer is done being built and wired! I am currently working on configuring marlin. Had a few minor issues with the printer. I put on the printer head backwards, the electronics enclosure isn't big enough for the wiring, and one of the acrylic pieces on the enclosure cracked. Other than that the printer is looking great!
Took a little break from 3D printing as I became extremely busy since my last post. I am still very busy but am slowly working on this printer. The biggest struggle I've been having is getting the SPI to work for the tmc2130s. Apparently the hardware SPI can't be shared with the LCD and drivers so I am currently messing with using software SPI. I also had some issues with wiring most of which are fixed. As of right now I still need to fix the SPI and I need to replace the bowden extruder, as the cheap e3d titan rip off I got from amazon broke already (pretty easily too). Will post any further updates.
Got a Bondtech extruder, and some capricorn tubing the other day to fix the cheap e3d titan knockoff. The only thing left to do is get the SPI working and then comfigure the printer! I am also likely going to replace the lokbuild sticker with pei in the near future. Will post more updates as they come.