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Toy Physics--Rollback Toy Challenge--Homemade Science with Bruce Yeany

Toy Physics--Rollback Toy Challenge--Homemade Science with Bruce Yeany

The rollback toy idea is put to the test to see how far we can get it to travel when powered by just 3 rubber bands. It is a great example of changing potential mechanical energy into kinetic motion energy. Fine tuning and given a long and wide enough area, this roll back toy has the potential to go 200 feet or more.
DIY Arduino based CNC laser engraver from DVD drive

DIY Arduino based CNC laser engraver from DVD drive

Hello! In this video I'm making laser engraver CNC machine from two old DVD drives and Arduino nano. If you have an old DVD or CD drive and want to have some fun with laser, this is the project for you. You can do Wood Sketching by laser engraving.
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