So I got one of those $35 incandescent Surefire 6P's from Jeff Bezos, and added a M61 from Gene. You end up with a upgrade 6P for just about the same price as a stock 6p LED.
Bueno
Have a look at coolant intended for GTAW (TIG) welding water coolers
Most of them are low conductivity, and have some inhibitors
http://store.cyberweld.com/lowconan.html
Great stuff should be fine, the only real requirement is that it dissolves in acetone or some other solvent. I do know that any mold you use has to be nice and dry to prevent steam explosions. Have to bake the mold for several hours @4-500 deg. If you are worried about the mold failing, you...
grab a unistrut catalog online, they make about a billion strut "things" all the way from radius pieces to make conveyors to doors. It is ridiculous the amount of stuff you can get
Consider lost foam casting, not too difficult to do at home. Fill your host with foam, pop the foam out and carve in whatever details you want. Cover the foam with plaster of paris (drown the foam in a bucket of the plaster). Melt the foam out with acetone and pour aluminum in the hole. If...
Check your local laser/waterjet guys carefully. I supply a bunch of laser shops with the gas that they need and most of them charge ~250-300 minimum. This is usually called a setup charge and it also serves as a minimum fee. If the project gets very big, then it costs maybe ~$100-500/hr after...
I am with gadget on this one. Clamp the mag body to the cross slide or tool post. Put a single point bit in the middle of a bar that is about 2 x as long as the body. run the bar between centers and run the carraige left/right with the power feed. Move the cross slide in to increase depth of cut.
another trick is to use a bar of the correct length between the front way and the jaws, the bar length is not critical, but it is nice if it hits teh jaw pretty square. I used to use a mag base with a length of allthread run into one of the holes and cut square on the end.
They had a "Sock Hop" at one of the schools in oour neighborhood last night. Not really a dance, but sort of a fundraiser/fall festival thing. Anyhow, lots of little games in the parking lot like ring toss and all that. When your kid wins, they get to go into a prize box and pick out a sticker...
All us OSHA standards are free, some of them could be considered technical. For the most part, however, you will pay quite a bit for most tech standards. We use ASME, AWS, and CGA standards at my work, any they are high $ for the number of pages.