This is a stand which holds a a standard Poly-Prep (or other brand) chromatography column. These fit the 9 cm high, conical 0.8 x 4 cm columns at a height which allows a 1.5 ml tube rack or a small beaker to be placed below the column. A simple way of running columns using $0.15 worth of plastic, instead of buying a rack from BioRad for $656.

Prusa

I3 MK3S

Yes

No

Low

30%

Can be printed with "draft" settings and a larger nozzle if you need the stand printed quickly, or you can print using higher resolution settings for a nicer finish. Design can be "stacked" in any 3D modelling program to make a multi-column stand; simply raise each layer by 25 mm above the bottom of the previous layer (e.g. 3 mm overlap; I've included an image of this in TinkerCAD, above).

I recommend printing with 4 perimeters to add a bit of strength, with ~30% in-fill. Any rigid material will work, but we've had success with PLA and PETG.

Rafts are not required if printing a single unit, but they can help with adhesion when printing a "stack" to hold more than one column.