Cookie CoreXY 3D Printer

thingiverse

The printer is strategically named; now, when your girlfriend/wife asks what you are doing buried in the garage all day long, you can shamelessly declare that you are making cookies. Bonus points if you actually get her a box of cookies afterwards. This is the mini version of the Cake printer that is available <a href="https://www.thingiverse.com/thing:3676602" target="_blank">here</a>. It is meant for designs up to 150 × 150 × 150 mm. The printed parts require about 1 kg of filament and the frame can be built with extrusions that cost less than 20€. It is limited to 34 mm NEMA 17 motors and will work fine with even 24 mm motors. The small printer should cost about 100-120€ and is a real workhorse (well, a pony-sized workhorse). The printer is based on Slot 6 2020 profiles, which are dirt-cheap (less than 3.5€ per meter in the EU) and very versatile, but Slot-V or other 2020 extrusions (or even rectangular pipes) can also be used. It also has a relatively small footprint, providing a good print area in restricted/tight spaces. Building the printer should be relatively straightforward. One thing that I need to point out are that you must install the pulleys before assembling the frame (screws that are inserted from the bottom up will be obstructed by the frame). The electronics enclosure is designed to hold an MKS Gen L motherboard. Some parts (e.g. switch holders) can be shamelessly stolen from the larger Cake printer or from other designs created to be mounted on 2020 profiles. I also provide designs for printed bearings. The printed bearings require 2 mm OD PTFE tubes to be cut and inserted into the bearing slots (5 slots per bearing). Simply place half the bearing onto the rod, insert the tubes, the push it all the way on and the PTFE tubes will lock into place. These bearings are more reliable than cheap metal bearings and also silent. You can either print the supplied STL files as-is, they mimic normal LM8UU bearings, or expand them to the length of the printed parts.