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Homemade high speed drill

Craft & Design

Drill 4X6[1]
Aaron has a pretty intense looking drill, he writes – “High speed drill made from auto blower motor (10,000 RPM). No need to center punch. Works great on aluminum sheet. Better than any other drills I’ve tried.” [via] – Link.

On a related note, Kevin Kelly has a great new site called “Street Use” with a lot of “Made on Earth” & “Heirloom Technology” style posts filled with ways in which people modify and re-create technology – Link.

4 thoughts on “Homemade high speed drill

  1. Oracle1729 says:

    A normal drill works around 600 RPM, this thing running at 10krpm sounds dangerous, especially if the bits aren’t meant for that kind of centripetal force.

    Also, the duct tape holding it together doesn’t fill me with confidence.

  2. dr_spaz says:

    I would like to echo the danger of using tools at unrated rpm’s. I have seen the results of table saw blades falling apart when run unbalanced on homemade devices. This could happen with the drill bit here.

    Not that avoiding danger is central to the MAKEing mission, but one should at least have some idea of the implications…

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