Hanging Towel Rack

For those of us that live in apartments and can not drill into the walls; i made a towel rack that hangs above a sink.
All the ones i found needed to drill or stick something to the cabinets or walls and i don't like doing that with rentals so i made one that it all friction based.
I also wanted something that would hang over the sink so the towels drip in an existing basin and not on a counter or a tray that gets moldy.

The clamps are from this thing
https://www.thingiverse.com/thing:1673030
and i made the arms fit around them with the plate and chopstick cutouts.
I only use half of the cheap poly carbonate chopsticks in the holes but you can use anything you want really. I just had them laying around.

Note the rounded corner cube int he scad file doesn't work in the z axis there are ones out there that do work. FYI.