This is a quick and fun tutorial on how to create an inexpensive laser pointer cat toy using DIY parts either found around the maker space or bought for other projects. It is an inexpensive and fun project that almost any maker or engineer could put together in a matter of minutes. It uses a cheap laser that can be found in many electronics kits (I’m using a red, 650 nm), a small button, and a 3.7V LiPo battery.

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