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Summary
The first session of last year’s Permaculture Technology Jamboree with Alan Booker, Chris McClellan aka Uncle Mud, Opalyn Rose, Samantha Lewis, and Beau Davidson comes to a close, with the next session due out shortly.
With the previous 6-inch “stubby” J-tube design, if it was scaled up to a full-sized 8-inch version of it, then yes, it would heat up faster but the actual oven part would be too far up in the air to be useful. So in the new design, they’ve put the kiln on top of the burn tunnel and below the riser. It even managed to get hot enough to use as an impromptu forge by putting bits of metal over a slit in the kiln to heat them up! So variations that can be hooked up to either a “sword-forge” to heat metal for forging or a full-blown crucible for liquefying aren’t far off, although the ones Paul bought in didn’t get tested due to the hot tub being stubborn. Hopefully this’ll get seen to at this year’s PTJ.
Thanks to Montana’s damp nights, you really want to finish drying whatever you put in a solar dehydrator in one day, so the new rocket-boosted one has both a steeper face to collect more sun when the sun is lower in the sky, and full of rocks to help retain the collected heat and thus dry the contents some more.
Opalyn led the group that made a mini-greatwheel style spinning wheel out of bicycle parts (the old Appropriate Technology course would be proud). The result is a hand-powered wheel made out of just one bike, although it’s possible to add a foot treadle either later down the line or on the next iteration. This style of spinning wheel benefits quite a lot from the light weight of a bike wheel, and although weights could be added to give it more momentum, Opalyn likes being able to start, stop, and reverse the wheel when loading it.
Relevant Threads
8-Inch Portable Modular Rocket Engine with Forge, Crucible, and Kiln Attachments
Rocket stoves forum
Free Heat Movie
2023 Permaculture Technology Jamboree website
3D Plans - Solar Food Dehydrator with Rocket Boost
Solar energy forum
PTJ Event 2022 - Spinning Wheel from Bike Parts
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This podcast was made possible thanks to:
Dr. Hugh Gill Kultur
Kyle Neath
Bill Crim
anonymous
Chris Sugg
Kerry JustTooLazy
Jocelyn Campbell
Bill Erickson
Sasquatch
G Cooper
Dominic Crolius
Penny McLoughlin
Mehron Kugler
Pasquale DeAngelis
havokeachday
Julia Winter, world's slowest mosaic artist
Greg Martin
Mark
Sean Benedict
Rita Bliden
Dana Martin
Candace Dahlk
Keith Kuhnsman
Leanne
Eric Tolbert
Nick DePuy
Nathan Hale
Opalyn Brenger
Polly Jayne Smyth
Todd Gerardot
Katie Young
Ivar Vasara
Brent Lawson
Weston prestage
Candice Crawford
Chris Holtslag
Song Zheng
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