This model is a collection of four different Factorio themed Cherry MX key caps. The caps are MX key style for the positions of the ESC, F1 - F12 and number keys. I made some adjustments such that they fit perfectly on my Steelseries Apex keyboard, thus the might not have the perfect size for other keyboards.

Any idea for additional items? Let me know, but they should be printable with just color changes.

Printing

All of them are made to be printed with one or two (circuit) color changes. The gear, wire and plate should be printed with a change to iron (I've used a non-silk silver) or copper, the circuit with a change to green, red or blue and then copper as well. Each cap requires support for the stem, the upper part of the key does not require supports. A 0,2mm or 0,25mm nozzle is recommended and make sure to print the items at a slower speed, especially the wire and traces on the circuit board are really thin.