Variable Number 15 & 50 ml Falcon Tube Rack
thingiverse
Tube holders for either 5/15ml Falcon (conical centrifuge) tubes or 50 ml Falcon tubes designed in OpenSCAD that allows for the number of tubes in the holder to be specified with a variable. Sorry I don't have photos. I will try an add them at some point. Rest assured, that I have printed these multiple times without issue.
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