Rocketdyke writes in regarding our post on how to make an end-around pneumatic (potato) cannon – “Bill Mills has had diagrams for a pneumatic air cannon on his website for at least 10 years. It was one we built back in the early 90s. He also shows how to make a sabot using styrofoam cups […]
Nak writes – “Just the steps taken to get a harddrive back up (Maxtor in this case) from 0 rpm and no bios detection, to 7200 rpm in a few easy steps!” – Link.
Spark Fun Electronics writes – “Why? Well, why not? We had the new LED Light Bars burning a hole in our pocket, so we decided to build a clock. Not just any clock – but a very large 24″ tall, 12 foot wide, clock with GPS current time and accuracy down to 100ns. The clock […]
Here’s a page detailing the construction of the all-PVC amateur hybrid rocket engine. Thanks BigBlueSaw! – Link.
Aaron writes – “This bicycle trailer is made from 1/2″ EMT conduit that is bent and brazed into a frame. It uses scavenged bicycle wheels, has a plywood cargo bed, and can be modified for any use easily. The frame alone weighs 15lbs, and with a hitch, plywood, and wheels it weighs 25lbs or so. […]
Simple Simon made a nice glowing clock from a hacked up cheap solar garden light – Link.
Andy writes – “Hey guys- great site and mag! Anyway, I was piddling around in the workshop yesterday, and I wondered if my drill press could do some basic plastic and maybe wood machining with the right bit and setup. I put a flat router bit in the drill press and put some PVC pipe […]
