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Buzz Bar Game
Fancied something different for kids parties and I looked at Buzz bar games on Ebay....£300 quid - not likely, so I made this for a few pennies. Although this reads like the worst Generation Game conveyor belt ever, here goes with the bits: a (9v battery and a holder from a bust radio, 3m/22mm copper pipe, couple of old plumbing fittings, some old case parts, a piezo-electric 110db buzzer from an old alarm, a house brick, reclaimed cabinet carpet, bits of old wire, cable off my missuses old iron, a switch off a broken power tool, a metal coat hanger, a bit of old rubber tube and hey presto ...... a buzz bar game.
It all breaks down into component parts so it's easy to carry.
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Very clever.
I however wasn't so clever and paid £200 on Ebay for mine...
You should manufacture them - yours certainly looks better than the one I have just bought.
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I've done similar to this before (except using 8mm brass rod instead of 22mm pipe - good idea by the way!) and I added a small blue strobe from Maplins (£6) and a couple of timer circuits (NE556 Dual timer IC + a few resistors and caps) so that when they hit the rod the buzzer sounded for 2 seconds and the strobe flashed for 6 (which means when they hit the pipe it triggers reliably and there's no arguments about whether that quick touch counts or not!)
One thing I will mention is that you'll need to keep a decent metal cleaner and an old rag handy at every gig. Copper and steel are good conductors when they're clean, but oxidise quickly when they have kids sweaty hands on them and that will quickly stop it from triggering reliably
The other thing worth considering (from experience) is connecting the cable to the unit using a banana plug mounted on the front surface so that if the kids trip over the cable or turn away without thinking about it the plug will pull out rather than pulling the whole thing onto the floor....
Julian
P.S. How did you get the bends into the 22mm pipe without it kinking? Did you borrow one of these from somewhere?
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Dinosaur
Originally Posted by
DJ Jules
P.S. How did you get the bends into the 22mm pipe without it kinking? Did you borrow
one of these from somewhere?
Or use the old trick of filling it with sand.
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I pondered over what to use for a good few hours. Cable, brass rod, copper bar? It just seemed logical to bend a pipe using larger hand held pipe benders (I have a selection of these!). You can get very complex shapes if a 15mm pipe is used and it's possible to do lettering with narrower gauge gas pipe. Quite an easy project for anyone so minded and if you haven't got pipe benders, a local plumber would sort it for you in no time at all. I'll be looking at making the buzzer sound for a few secs.
Simple circuit diagram available for anyone who wants it
Good tip already: Silica sand packed inside the pipes does help to get a neat curve.
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Ezekiel 25:17
Originally Posted by
paulg
You can get very complex shapes if a 15mm pipe is used and it's possible to do lettering with narrower gauge gas pipe.
Custom one with the B&G's married name - now that would be a nice angle (pun intended).
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Thank you for that paul
very informative
i will post a pic of mine when its done.
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