[drcrash] sent in this thorough how-to on converting a cheap bike pump to pull a vacuum. Apparently it’s just the thing for small vacuum bagging projects. I’m thinking that this could be combined with a low rpm motor and a pivot. Just picture an old steam locomotive wheel drive, and you should get my idea. (A windshield wiper motor would … Read the rest
Sorry guys, I’ve got to comment on this one.
[tylin] sent in this “DIY SCUBA” youtube video. These guys used a home shop air compressor with a particle filter so they could “SCUBA dive”. This kid is lucky he didn’t die.
I guarantee there were impurities in the compressed air. A major concern here is carbon monoxide, among others. That … Read the rest