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Showing posts with the label drilling

V4 solenoid engine

Emiel, of the Practical Engineer , shows how to make a crankshaft-based solenoid engine, demonstrating a press drill and a lathe. There's a detailed blog post with instructions  as well as a YouTube video  also show below.
Chris Notap shows how to cut through glass and ceramics with cheap diamond hole cutters from ebay, and shows a nifty pop-bottle water feeder for cooling the bit, as well as a simple jig to hold the drill steady as you start a new hole.