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dpm99

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Posts posted by dpm99

  1. The idea of the water heater element in a water filled pipe is intriguing if only because of the even heating it would create. On the other hand getting it hot enough to be useful may create some fairly high pressure in the pipe. How hot do the pipes need to get to be useful?

    SR

    I agree. If anybody ever tries this one, I'd love to see the build documented.

  2. Side note: On these two I used the largest drum (it's pretty huge) on my spindle sander with a fence to make the transition... I would NOT recommend it. It's still too aggressive of a transition IMO. That's why from here-on out I'll be hand carving my transitions as I mentioned above.

    Homemade drum sander FTW on those transitions.

  3. Thanks for the responses. The volume will be after the preamp. I'm aware of the issues you guys mentioned. It's actually all going to be internal. I'm blending a piezo with a mag, and I need a buffer/preamp. I'm build one, but these are so cheap I'd rather save the trouble. I'll try to open it up and see what's going on in there, but it seems to me that if I just go piezo -> preamp -> volume -> switch, and put a switch in the ground line to the battery so it doesn't constantly drain, it ought to work. I'm open to other suggestions if anyone has any.

    I guess I'll just start with something between 25k-100k and see how it works.

  4. For what we do, as long as it will adequately conduct the electrical signal, it's fine. I've tried a lot of different things. If I'm working with complex wiring schemes or small terminals (like the ones on push-pull pots), I'll use a very small wire, like a 28 or 30 gauge. Otherwise, something like a 22 is fine. Solid core wire is a temptation, as it's easy to work with, but it's more likely to fail over time, so stranded is the way to go. The insulation material comes down to personal choice. Cloth push-back is fun, but bulky. So mostly I prefer simple plastic insulation. Multiple colors help you keep track of what goes where.

    Then you get into insulated wire. I'm not a big fan of the braided wire, because it likes to poke me and make me bleed. I prefer the kind that's insulated in foil. I've even made my own from foil and heat shrink plastic before, in a pinch.

    That silver tinned stuff sounds really good though. I want to try some of that stuff.

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