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how a mad scientist tumbles brass

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Uploaded by on Oct 3, 2007

Who needs an expensive vibratory tumbler? Not I...

(5v p-p sine, 50hz)

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Entertainment

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  • likes, 36 dislikes

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Uploader Comments (mfree80286)

  • As cool as that is... I picked up a tumbler for $30 at the gun show recently. That's a lot cheaper than a DC power source, 2 amps, an oscilloscope, and a speaker.

  • @Abaddonseven don't forget the frequency generator. Seriously, I already had all the equipment and was just screwing around on a night that nothing was needed anywhere else.

  • No media in the container?

  • @rushymoto , didn't have any at the time... was about 3 mo. from pulling the trigger on a Lyman shaker.

  • Calling that driver a 'speaker' is a stretch by itself. Especially considering there's no 'core cushion' to speak of... cone is a sheet of polypropylene, dust cover is concave, plain urethane surround, Q values that sucked eggs... ah, past tense. I cut the cone off the coil and put it in a corner of the basement intending to cut the magnet assembly off the basket struts some day. Think I gave ten bucks a pop on two 15 years ago, no idea where the other is.

  • LOL, if it does the job, its good enough for me. That is great ingenuity!

  • @Marine052191 Well, it didn't really clean anything, but never underestimate the power unleashed when you combine boredom and mad science.

    If I'd had on hand something more than a ~150 watt amp/3 amp power supply and a chintzy 15" woofer with a Q like a bungee cord.... ok, well I might still be prying brass out of the ceiling. But I might not have picked up the RCBS tumbler that lives in the basement :)

Top Comments

  • @jawbone83 Ah, it worked great... kept me from rotting my brain in front of the TeeWee for a couple. The brass didn't come out any cleaner though, needed more cowbell... er... power.

  • not to piss in your cheerios, but it doesnt look like its working.

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All Comments (137)

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  • Lmao! Was not expecting that.

  • It's awesome but I would call it a brass wiggler rather than a tumbler!

  • Actually, it's kind of stupid. Placing a container on top of the speaker will crush the core cushion in the speaker, completely fucking the speaker up. and the tumbler will not vibrate enough or have enough gravel to clean the brash on the casings because eventually the speaker will not be able to vibrate if the pressure from the weight of the container is great.

  • That's Gangster

  • i dont know what say the job was completed but overengineered. Awesome funny idea lol.

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