Transportation

EV dragsters!

EV dragsters!

Design News has an article and slide show piece on electric dragsters. The car pictured here is Mike Willmon’s electric Pinto, the Crazyhorse. The infamous Pinto gas tank (and the back seat) has been replaced with 848 lbs of lead-acid battery. The car is powered by two nine-inch diameter brush DC motors, coupled back-to-back. The […]

Monstrous Frankenscooter spotted

Monstrous Frankenscooter spotted

Check out this amazing Captain Tinkerpaw special. Seen on Kevin Kelly’s Street Use. KK writes: I can’t tell what this is for. Might be a portable night market stall (for food?). There’s a generator on the tail and a light bulb hanging in the middle. Seems to be in Korea. That’s all I know. (Thanks […]

Motorcycle brake rotor repair kludge

Motorcycle brake rotor repair kludge

Drilled and tapped for the screw and drilled a clearance hole for the mount bolt.At 20 threads per inch, that would be .050″ per turn. So .01″ would be 1/5 of a turn. Put on a standard six-flat nut for reference. Turn less than one flat would be .050/6 = .0083 inches, a little margin to the spec.

So, to use it, you spin and gradually drop the screw until it just touches at the highest point. Turn to the lowest point, and tighten down. Took less than one flat, so I believe I am in spec!

How-To:  Weave a rope mat

How-To: Weave a rope mat

I’ve seen this thing referred to as an “Ocean Mat,” a “Prolong Knot,” a “Ladder Mat,” and a “Sailor’s True Love Mat.” Whatever you want to call it, it’s a noble expression of the manly art of knot-tying, and this tutorial at the UK’s Scullion Enterprises will show you how it’s done. More: Rope bending […]