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P1 Inkscape Laser Cut Acrylic Sample Rotator v002 Download free files now ›
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Open Source sample rotator for biology/chemistry laboratories. A new rotator for slowly stirring a solution during a reaction can run as much as $300. I built one for less than $50. That includes having the custom parts laser cut. I used one piece of threaded rod (.25 inch diameter, 20 threads per inch pitch). I cut that into three sections and used 9 nuts and 1 cap nut to secure it to the device. I locked the contact point between threaded rod and motor with epoxy paste. I solvent-welded the joints between the rectangle and squares with methylene chloride. I used a little bit of epoxy paste to reinforce the solvent-welded joints.

The whole thing makes one rotation every 10 seconds. I secure any vials to the rotating threaded rod using binder clips and/or tape. The switch, motor, and power cord were all ordered from McMaster Carr:

3867K12 Constant-Speed AC Gearmotor 6 rpm At 60 Hz $23.57
14695K91 Inline on/Off Switch for Lamp $ 2.64
7248K22 Power Cord with Two-Blade Plug 18 Gauge Wire, 9' Long $3.02

rg6e41sq would like to share their product with the following license Public Domain Read the fine print of this license
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Reviews of P1 Inkscape Laser Cut Acrylic Sample Rotator v002

Additional info: Listed on Jan 18, 2016 Viewed 8502 times Report this item to Ponoko

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