Magnetic Rack 4 rows of 8, 1.5 / 2 mL Eppendorf Tubes, E1 8 channel ClipTip compatible

thingiverse

Modified from [Magnetic Rack for 8, 1.5mL Tubes](https://www.thingiverse.com/thing:79424) (thank you, [acadey](https://www.thingiverse.com/acadey) for the great design), I (with support of some professionals) redesigned the magnetic rack to allow comfortable work with magnetic beads separation for 32 samples using the Thermo Scientific E1-ClipTip 8-channel pipette. We use it extensively for [Rohland et al. 2018](https://www.nature.com/articles/s41596-018-0050-5) type ancient DNA extraction and single-stranded Illumina type DNA libraries according to [Gansauge and Meyer 2013](https://www.nature.com/articles/nprot.2013.038). The original design was decreased in width to fit the maximum spacing in the E1 pipette and spaces between the rows designed to retain visibility and easy manipulation of the tubes without making the rack too bulky. Also available design of a two-row rack. Tips: * works best in bright colors (e.g. white). * I printed it with PLA+ material and works nicely. * depending on printing technique, material and tubes used, the tube holes might be a little tight, but they get nicely fit with ~10mm felt polishing wheel/cone (just don't start of with high speed or you will melt the material and get the felt fibers stuck in). You can also try printing the design with the tube hole widened to 11mm diameter (currently 10.7mm) * requires 12x6x2mm (12x6x3mm should be good too) neodymium magnets, some polymer glue and a little patience with gluing. Please do not hesitate to contact me if you have any comments, ideas or questions.