It is neat, it is just an ARM microcontroller chip like on the microbit and there are some ARM arduino compatible ones. The atmel/arduino is a microcontroller as well. It varies from the ARM chip in the raspberryPi because it has real-time clock like the arduino.(arm has IP for both microcontrollers and applications processors.) However, the Raspi, can be made into more real-time system with a RT kernel patches or with the quad cores, you just dedicate a core to the application you want. The rest of it is just the goodies they added with the exposed headers. For instance, you can get an i2c can-bus chip, or DAC /ADc for fairly cheap to add on. The software looks pretty neat as well.
I do not like this toxic ceramic blanket any but it might buy me some time while working on the carbon foam. I bought a quart of the expensive rigidizer and applied it to the blanket. It becomes more fragile, I believe, then the carbon foam made from bread. Easy to put your finger through.
Becoming a sheet metal junkie. I see myself joining the stainless steel gasifier group. A lot of sheet metal can be stored in a small area as compared to tanks. Surely there will still be a use for some old tanks.
The cooler is stolen from the wood stove people. They call this design a bell or stratified flue gas heat exchanger. The idea is that the hot gas will rise to the top and as the walls of the cooler cools the gas this cooled gas will sink to the bottom.
Reading through Bob’s build I found a link that Garry, @taitgarry00, posted. Gives some hope for the stratified gas heat exchanger. Possibly, as the moist hot gas looses some of the moister to the walls of this thing this gas will be displaced to the bottom a long with water running down the sides.
Giving a band seal a try. The pipe seams are a pain in the butt but for now that is all I have. Decided to order (later) a small 24" slip roll and go with stainless steel.
Amazing video JeffD.
My go-too favorite saw IS a Stihl MS260Pro.
Very, very light and powerful for it’s size. But honestly a bit handles/motor mounts fragile.
This guy is real good to get that saw this versatile useable.
I learned much watching this.
“learn some every day to keep upright out of the ground putting one foot in front of the other”
Steve Unruh
Use the tool trailer a lot but soon to be snowed in. The generator is about 25 years old and still runs like new, arm is nice for loading and unloading.
Hey Jeff,
I just stumbled upon the same video yesterday! Way cool and makes me want to give it a try. In fact, my son in law needs a 22 foot beam for the garage and I am going to try this method of milling one. Plan B is to use the saw mill but it is at my house 20 miles away. I’ll have to let you know how it goes.
Gary in PA
Ha! Ha! Two recounts I’ve read relates to, “how long to learn”.
The first from a book of Weyerhaeuser Co’s First Hundred Years.
In the 1930’s one of the Weyco’s 2nd generation then university ed-u-ma-cated managers was bemoaning having to go to the expense of convincing and rough-rail bring in craft finished carpenters to build some management company housing for the company Doctor, Bookkeeper and TimeKeeper at an end-of-line location.
The on-site Carpenter ask why? I can do this too. The degree manager was skeptical of this rough-carpenter. The Carpenter said you’ve stayed at the three-star Astoria Hotel down in Longview(WA)?
Yes.
Well. I did all of the finished carpentry on that.
Really? How?
With this belted carpentry hatchet you’ve seen me always carrying and using!
The second account was from here on the DOW.
Band-saw many teeth blades resharpening. Debated better to just buy the-cheapest and change out discard replace when use-dulled? When broken?
Or better to buy the higher quality bands. Then the resharpening fixture machines? Even invest into broken bands re-welding capability.
Ha! Mr Wayne finally pipes up and says he actual free hand dremel-tool resharpens his. But only on his best good-eye and steady hands days. Only discards out the broken ones.
Very much some woodgas system using lessons here.
Steve Unruh
Working on the next version. I’ve found that a simple perforated (or drilled) grate works best for me. The difference with this one is how it is mounted. Just welded to an old door hinge. Then it can be locked in place with a bolt or what ever, through the holes in the hinge. Makes for a nice swing away cleaning or some little cleaning by shaking the grates. One issue might be if the grate warps away or opens up some by heat warping. If it does I’ll worry about it then.
Hi Jeff, My retort/ gasifer I am building has the same design but it is a lot bigger grate to pass charcoal pieces. I am sure this will work. If it warps just weld some half inch metal stock around the edges of the grate and to the hinge to stiffen it up.
Bob
