Things to do

For now there are a few basic upgrades that are next up in line to make room for further more dedicated ones.

• cut out a baseplate to mount the printer on. It will provide stability and also a mounting plate for the mainboard (which is currently mounted to the printer frame). The printer is already elevated by 5cm (~2") so now there is enough space to lower the mainboard onto a base plate and enclose it in a cooling tunnel.
• mount the extruder up top. Currently it is mounted to the side of the printer and the bowden tube through which the filament moves towards the print head is bent in a U-shape which introduces more friction to the filament movement. I hope, by mounting the extruder vertically, the filament will move more easily (especially important since I plan to print with flexible filament too which I suspect is more susceptible to friction).
• install extruder upgrade for flexible filament (TPU upgrade for extruder). the current top part of the extruder has too much space so that flexible filament can jam. I already printed the part, but did not have the time to install it.
• reprint the holding brace for the extruder power and thermistor wires. I downloaded one from Thingiverse (Make of holder brace) but it broke in the meantime. Maybe I'll redesign it to be a bit sturdier or just reprint.

Next batch of upgrades would include:

• spacers to offset the glass plate by a bit so that it does not lie on the LEDs from the heated bed anymore. This will make bed leveling easier since currently the glass plate bends a tiny bit into a curve (in the order of less than a mm).
• bed leveling screws (own design probably - did already a first take on designing and testing but quite a few improvements needed to be fully functional) to make bed leveling easier. The bed leveling mechanism needs to be designed such that it does not interfere with the glass plate spacers.
• mount the mainboard on new base plate and add a cooling tunnel over the steppers and also replace the current 50x50mm fan with a less noisy version
• redesign extruder pressure lever, currently I use a chop stick that I press against the extruder lever to ensure my extruder does skip as few steps as possible. The stock spring is way too weak to provide the correct pressure. I would like to have a new design with easily adjustable extruder pressure.