So in over ten years Ive never put a gauge on a gasifier. So I have this gauge pre filter so I can see the presure on the gasifier. While Im tuning I kept see a rise in neg presure and then I find the hearth is void. So Im scratching my head how is this posible? So keep at it and it repeats over and over; what is going on here?? Then it dawned on me. The reason is this is the actual presure the engine is putting on the machine if it could run on jus the air inside the gasifier. When there is fuel inside and processing it is creating gas and displacing volume and lowing the presure. High presure does not mean the gasifeir is clogged always. It can mean you are lean on fuel in the hearth or indicate a bridge. Ah ok now I get it!!
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Exactly MattR.
The gasifier is a Producer of internal gasses volume, and therefore “pressure”. But only if it is producing.
I have always been very uncomfortable with the European way of internal sizing calculating based on cold flow numbers.
Maybe work for one given steady-state operating condition.
True gas-using internal gasifier conditions are self-generating and demands-driven, dynamic.
Only experienced using can establish ranges of usages, and true useful understandings, IMHO.
Steve Unruh
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Did you mean “suction” or maybe “vacuum” (both words mean the same thing to me)?
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Yes the samething has happened to me on my WK Gasifier when driving down the road. Lost power pulled over and it was a bridge in the hopper, fixed the bridge and refilled with wood. Back on the road again and the negative vacuum was back to normal.
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I mean neg presure or vac presure but figured you guys know thats what Im talking about 
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Hey Matt,
Any idea when the STL file for your AFR will be available?
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I will have to send it via email. Cant upload it here or on my site.
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is my email available here or how do i get it to u.
This is my first attempt with Matts auto AFR. This is truly amazing!! This was the best run on the ammo can and the free gen. Resin printed the AFR body but i have one printed in PETG that i will be testing next. I am also using Matt’s carb adapter printed in PETG, works like a cham. 2hr print time on adapter and 3.5hr print time on AFR body. Very cool stuff.
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Thats awesome!!..
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That’s bloody brilliant , well done to all concerned .
Dave
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Well Im going a different route with the 68 K-20. To much money and time invested to be a “doomsday” truck. lol. So the the S-10 I have coming next is going to be that project. Besides its really going to be a better fit anyways. It will be light weight, with V8 power train with 5 speed, solid front axle 4 wheel drive and it will be black!!
With the level of body work that went into resorecting this 68 I decided to go with lighter color. Not the best choice for the doomsday truck. lol. So anyways I am going to push and try to the 68 on the road this year as my daily driver and as soon as its road worthy will then start the S-10 restoration process. Yeah then after that I have a 66 Chevy II SS 327 car that is a mess!! It will need to be put a rotisary and completetly reconstructed. That will be fun
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Here is a post from back when I first started on this cab. I had to hold off on this due to how busy things got. But these pictures really dont do me or this truck justice. This cab was smashed in from the rear over an inch and from the lower body line on down was like this truck was dipped in an acid bath for its entire life. All metal from this body line on down is all brand new.
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You need to re orient it you have to print it with the base on the build plate.
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When you set this up in Cura it should look like this. It is designed so that there are no supports required.
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Thanks Matt. That makes a lot of sense.
I will reorientate it for the next one.
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It’s a thingamabob. And a good looking one at that
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Working on the interior and getting all the glass re installed. Some of the guts of the doors will need replacement, so working on getting those parts. Front glass should be here this week.
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Like that dash and the seats with center console
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