Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3155534.
A sliding cup holder I designed for my computer desk to prevent spilling coffee on my keyboard whilst designing other objects! Stows away while not in use.
Requires 4x M3 standoffs and 8x M3 screws 15-20mm long as well as 4-6 tapered head wood screws (~3/4" long or 20mm) for securing tracks to the desk. I used 24mm long standoffs, but you can use whichever length and style suits you.
Print 1 of each: slide / lower Print 2 of each: tracktop / bottom
Designed in so many different pieces so that the parts that are sliding together are all from the bed side for smooth movement.
To assemble screw wood screws through both printed track parts with the top of "cupholdertracktop" facing the top of the desk matching the tapered part of the ring piece. Screw one track in, put assembled cup holder in between them and screw in other track.