3" cupholder for lawn chair

thingiverse

I have cheap Adirondack chairs with no cupholder. I used a 3" holesaw to cut a hole in the armrest and dropped in this cupholder. The locking ring is a very tight fit and slides on under the armrest to hold the cupholder in place. I printed two of these in ASA and used acetone to lock one in place but that doesn't seem necessary as the other one did not get acetone or glue and has stayed put. 3 files, cupholder and ring in one stl and separate files in case you have a small bed or want different materials/colors