Category Archives: Disc gongs

Old->New gong array

The trick with scrap-aluminum gongs is that you just can’t tune them.

So I built this basic array by ear (back when I decommissioned XyloVan), choosing disc gongs that would resonate well together.

This past month, I upgraded the whole thing to get it ready for visitors to Seacompression to bang on and enjoy.

Weather had beaten the crap out of the backboard while it lived on our rooftop in Brooklyn (site of my many nighttime courtyard gong serenades), so I gave it a fun paint job.

And I engraved all 7 of the otherwise dull chunks of metal, using a 1/16″ burr bit on my Dremel for the lines and shading, and then a series of drillbits for the points, all of which … took a few hours.

I’m pretty happy with how it turned out.

A gift

I spent quite a few hours finishing this for Jack, the bit, friendly genius/nice guy of a home builder who finished the last major step of our 2nd floor remodel this afternoon. I engraved two gongs that sound good together, mounted them on a chunk of the butcher block that I milled from scrap left over from the countertops, and laser etched the plate to say:

With my deepest thanks

to

Jack Medrala

Homebuilder

Gentleman

Hero

He earned this; He got us through hell, and we love living here on the other side of it now (see earlier posts) thanks to his skill, moxie, and hard work. We love the guy and would recommend him to anyone.

Gongs all made!

gongsJust a quick one – these are the gongs we made for our Indiegogo supporters, all engraved and ready for their fittings. It’s not too late to get one of your own! A $150 donation to our big Burning Man project nets you a hand-engraved gong with your slogan Or inspirational quote of choice, a dowel chime, machined aluminum block pendant and slice pendant, crew patch and sticker. Just Paypal us at factoid@well.com and tell us your inscription in the comment field and we’ll get right to work on it for you! Thanks so much to all our gong-level Indiegogo supporters!

Check out the demo video!

The freshing of the mallets

Making mallets is very slow work. (Video)


First, we buy 50 (fifty) 30-mm bouncyballs …


Then we drill 11/64-inch holes in them …


And stick them onto 16-inch-long rods of 3/8-inch (and 1/4-inch) fiberglass, procured from a Max-Gain Systems, a very friendly radio-antenna-supply house in Georgia (thanks, Google) …


After dipping (about which, more below) the blue ones look like this …


We make the soft mallets blue (to tell them apart from the hard, yellow sticks). Soft mallets work best on the lowest keys, where the soft hit of the bouncyball heads brings out the lower dominant tones of the metal. Hit those low keys with the hard sticks and all you hear is nasty overtones rather than the dominants.



Likewise, using the soft, blue mallets on the shorter upper keys and the disc gongs on XyloVan’s doors results in a muted tone. Those keys like to be hammered with the hard yellow sticks. Someday we’ll have to post a demo video to demonstrate. Either that, or you’ll have to find XyloVan and try it out yourself. ;D


We use PlastiDip, a fast-drying liquid vinyl compound …


The 3/8 “hard” sticks have no balls (yes, that’s a straight line) and so take multiple dips so that we build up a nice, reslient tip …


So, we’re still dipping …


As you’ll see in the (video), you have to wait a few seconds after each dip to let the excess drain off so that you don’t get drips or – even worse – the situation where the vinyl compound skins over and then sloughs off, taking most of the remaining liquid with it.

We stick them up to long strips of duct tape, which hold them long enough to dry …

And then eventually fail, dropping the dried sticks to the floor overnight.


More work to come!

Mounting the disc gongs

I fell in love with these things while scrounging through the scrap bins at Industrial Metal Supply.

They’re the sawn-off leavings of enormous logs of aluminum, this some of which had been many feet long and up to 12 inches thick.

They sound fantastic. And they look pretty graphic against the green of the van, viagra in nice contrast to the rectangular-keyed xylophones … Continue reading Mounting the disc gongs