Cube 3d printer for 2020 Al profile

thingiverse

I slowly finished my printer, so I decided to introduce it to everyone who's looking for inspiration. My printer is an original Flsun Cube that has a frame made from 2020 aluminum profile (but this build can be used for other 2020 frame-based printers like the Tronxy X5S). I liked it, but its problem was that it had a 310x310 mm hotbed size, which couldn't reach the edges and could only use 260x260 mm of the hotbed. This issue I solved by rebuilding on a CoreXY system, which I've separately posted here: https://www.thingiverse.com/thing:3263329 The second problem was that the Z axis was outside of the cube, so it couldn't be enclosed. To solve this, you just need to add two 2020 profiles (460mm long) and shorten the Y rods, Z rods, Z Trapezoidal rods, and the "L" profile on the hotbed holder. I was worried about the temperature of the stepper motors, so I created a design to keep them partially outside of the inner chamber. I measured the temperature - inside the chamber is 55°C, and the XY and E motors have around 52°C. The Z motors are completely cold. The side windows (made from plexiglass-polystyrene) can be easily removed with just two screws, which allows for easy maintenance access and good visibility. The cover of the printer is made from lacquered polywood, and inside it's glued with 10mm insulation foam. Most heat losses are through the plexiglass part, but I don't count on temperatures over 60°C due to low temperature plexiglass resistance (maybe next time I'll use polycarbonate). The electronic components inside are Duet 2 Wifi, which is mounted on a holder with mosfets and cooled together by a 120mm fan. Edit: 2019-04-08 - Added a holder for the PanelDue 4.3" display with a light switch and thermometer for chamber temperature.