Test tube holder

I got bunch of plastic testtubes and made drillbit holder from them. From 1mm to 5mm.

I use 12x75mm and 15x100mm plastic testtubes (diameters were some tenths less than that). Their taps were natural cork and not useful for continous use.

I use Thingeverse 1979713 as startpoint but modified it quite a bit. Original was imperial measuring, this is mix of it and metric.

Print is really snug fit, it does not need any glue but can be hard to assemble, if parts do not go to place without hammering, file them sligtly, maybe burr in edges.

PLA and 0,2mm layerhigh is good, 20% infill or even less.

You need:

2 sides
2 top_middle
1 bottom

caps if needed (TPU is best choise for them) 5 small and 4 big

others:
testtubes: 12x75mm and 15x100mm