Level Your Bed: Follow your printer manufacture’s instructions for the bed level procedure.
Clean Your Bed: For best results follow your printer manufacturers instructions for bed adhesion.
Number of Permiters: For best results adjust your number of perimeters setting until the outer walls of the deckbox become solid.
Performing a Color Change: In order to get the two-color effect without a multiple extruder system it is necessary to change filaments during the print. The first 0.6mm of each tile should be printed in one color and the rest of the part should be printed in a separate contrasting color. Most modern slicers have an easy way to insert this color change G-Code. If you have never done a color change before, consult the documentation of your slicer, for reference here are some documents from some common slicing software.
Prusa Slicer - https://help.prusa3d.com/en/article/color-change_1687
Cura - https://all3dp.com/2/cura-pause-at-height-how-to-do-it/
Nozzle Selection: These parts can be printed with a 0.4mm and 0.6mm nozzle. Tolerences of the locking mechanism might be tighter depending on printing speed and quality of the filament if printed with a 0.6mm nozzle.
Multiple Extruder Printers: For printers with the ability to print multiple materials at the same time you can load in one of the special multiple material files available 3 color boxes. Models intended to be part of the numbers node all begin with the prefix MMU.
Card Compression Spring: if you have problems with the card compression spring lifting off from the bed, it is recommended you add a skirt of at least 6mm.
Safety First!: Remember to always use proper PPE when working. Use safety glasses, and proper work gloves when assembling. When using sharp objects never apply force towards body or hands. When using glue follow the manufacturer’s instructions, especially those regarding contact with skin, eyes, and ventilation.
Apply the Glue: Glue is not always necessary depending on the tolerances of your printer. The design intends for all parts to be press fit, but sometimes the tolerances of different printers or materials mean the fit will be too loose for the press fit to hold the magnets in. For best results gluing is recommended. A small amount of glue applied to the bottom of each hole (generally less than the volume of a grain of rice) should be adequate. The small reliefs in the sides of the magnet holes should allow any excess glue to be displaced without coming up to the top of the part. If that occurs, simply wipe the excess glue away and use less glue for the next part. The glue has a 2 hour set time, but I generally allow a full 24 hour cure time before use.
Place the Magnets: Make sure you properly align the poles of the magnets so your Spingies stick together. I like to use a sharpie to make a dot on the top of all my magnets so that I always know which polarity is up when the magnet is placed into the hole. When placing the magnets in the holes, make sure that one side has a south pole facing out and the other side has a north pole facing out. If done properly the magnets placed to each end of the hole should try to stick together, not repel each other. It is important to make sure you always use the same pole orientation between all parts you make or a freshly printed batch may not stick to older parts you have already made.
Once you are sure the poles are properly aligned, press in the magnets. While you can do this with your fingers it is generally easier to stack the magnets in a column and force the magnet in using the column of magnets to get a better, more ergonomic grip. If you prefer you can use a metal object like the back of a screwdriver or plyers to force the magnet in as well. Never use anything that is sharp or could injure you if you slip. Wipe off any excess glue with a disposable rag and remember to allow the glue to fully cure before use.
Filament: Many different brands of filament and materials should work. My preferred materials are PLA and PTEG but other materials such as PLA will work just fine. My favorite brands of PTEG available on amazon are Duramic and YOYI. You can get those materials here:
Magnets: Each Deckbox requires 8X 6mm diameter, 3mm tall Neodymium magnets. Any brand of magnet that holds a tolerance on the diameter and height of the magnet of +-0.05mm should work. The magnets I use can be found here: https://amzn.to/375aoze
Glue: The glue you select should be able to both the outer coating of the magnet and the material you are 3D printing with. For the magnet I have previously linked and PTEG I have found this product form Loctite to work well: https://amzn.to/366HUFT