I needed a holder for 6 15 ml falcon tubes. The one i was using was way to big, didn't fit two tubes next to each other with the caps attached and blocked the scales on the tubes.
This fixes that and saves me a lot of bench space.
This was made in the browser version of Fusion360 and then later refined in the installed pogram. Unfortunately this seems to result in a broken linear pattern. It's fine unless you change the pattern, sorry about that.
V2 should be a easier to edit in fusion 360 and also requires less material. It should also fixe a problem with V1: Pushing down on the the outermost tube caused the entire rack to pivot around the foot.
Licensing: If you want to sell this, contact to me. If you run a printing service and are requested to print this: go ahead, although a tip would be nice.