If there's a good mechanical fit between the metals, you can use solder, else brazing would be better. If you're using it for pressure, I suggest using brazing rods rather than solder, I build air conditioners and the pressure can get quite high sometimes ~300psi, I never use solder cuz its not acce...

oops my bad lol

Call up heineken and ask them, that's what I did when I looked for propane purity at bernz-o-matic lol.

Hey I had no idea about that stuff from school. I'm in Year 12 physics in Aus which is the last year of school. We were basically told only way to change DC voltage is to convert to AC and use a transformer. Come to the think of it i have come across one of the things you are talking about, i used ...

Here's a link to someone's iPod charger that reduces voltage from 6v to 5v, you can use the diagram and equation in there, the rest is just different component ratings. Be sure to put a heatsink on the chip if it gets too hot, like stated before, they burn extra voltages in the form of heat. http://...

ps- i assume your in 9th grade (going into 10th soon) correct? you have learned nothing in school at school all they give you is a taste so you figure out what you like so you can study it more deeply later in life. i am in 10th grade and i can tell you sitting in school hasn't done anything other ...

Use a transistor, they sell all sorts of different voltage/amperage ones at any big electronic stores. It's a small chip, I've used one to reduce 9v to 5v for charging USB devices.

lol I still carry mine around almost every day, but no one knows besides a few trusty teachers who's seen it in action hehehe (going to grade 12)

All regulators has its own pressure limit. The differences is pretty much different sized/shaped fittings. For spud guns with co2, you can just use any regulator that fits well and can handle the pressure.

British Columbia, Canada!!

Put them in your luggage along with like a garden layout plan. If they want you to declare value for customs, just say it's for your own home projects, not for selling, and say it's difficult to buy the right ones in NZ. I put some 20 water pumps and loads of copper piping in my luggage once, into C...

Make your own battery bank, yes. Just google around for methods of safe charging. Make your own battery powered high pressure compressor, I doubt it, it requires a lot of wattage no matter at what voltage, which is difficult to power by batteries besides car battery. Even if you could make a small l...

A nine volt battery won't even start the compressor, pretty much only car batteries will. A 12v compressor suck a lot of amps, but a battery is only designed to chemically feed some milliamps. Charging a car battery yourself requires some research, if not mistaken they produce explosive hydrogen gas...

Sweet knife!! The handle looks pretty solid


lol I only have 2 knives, one was a swiss army gift, then a schrade x timer for $17 at walmart

Starting voltage for many computer fans is 7v, below that it won't even start My fan used to run off a 6v battery and pretty fast too. Maybe some fans just suck ass? Many, not all lol. I have a brushless fan with a max power rating of 5v, starts at 1.5v. hmm this actually reminded me, I could use t...