An open source pick-and-place machine for $500

Pick-and-place machines are used to quickly and precisely place electronic components onto printed circuit boards. The open source IndexPnP with software powered by OpenPnP is a new cheap DIY pick-and-place machine. Commercial options cost thousands to tens of thousands of dollars. There are several open source designs already out there, a portion of which are […]

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3D Print a Stethoscope

Here at Lab On The Cheap HQ we’ve received a few requests to look into ways that people might easily and cheaply transmit audio from a stethoscope over their phone to a medical practitioner they are teleconferencing with. While we are looking into the best solutions for that problem, we’ve noticed a lot of methods […]

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Make a polarimeter for $350

A polarimeter is used to characterize a sample by measuring the rotation of polarized light when it interacts with the sample. They can cost upwards of ~$10,000, but a $350 DIY high-resolution polarimeter has recently been detailed in a paper by Andrew Harvie , Tom Phillips, and John deMello. The bill of materials for the […]

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FED3, an open source Feeding Experimentation Device that you can DIY or just buy!

The Feeding Experimentation Device v.3 (FED3) is a smart pellet dispensing device originally designed for training mice on nose-poking tasks. Contributors to the product include Lex Kravitz, Sophi Kravitz, Bridget Matikainen-Ankney, Andrew Hardaway, Mohamed Ali, Katrina Nguyen, and Filipe Carvalho. FED3 is battery powered and designed for home cages. It collects information on nosepokes and […]

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