Inoculating Turntable / Petri Dish Spinner

A while ago, we posted this on Twitter:

Here’s a better photo:

IMG20180506190454

It seemed to generate quite a bit of interest. So, here are the technical drawings! We learnt a few lessons along the way, so these drawings are for a slightly updated version of the turntable that incorporates small improvements. The drawings can be downloaded as a single PDF here.

In total, the cost of materials was around GBP 12. We used hobby metalworking machineries at home (mostly a benchtop lathe), so any university machining workshop should be able to recreate this easily! Note that we spray painted the base to prevent rusting.

We’d love to see your own versions, so if you do end up making one, please post a photo on Twitter (or email)!