Mature Expertise: Volute Formed Blower
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Infomation
Description
Transcription
The original blower in use, the fan spins one way and then the other instead of continuously in one direction The string mechanism allows for a high rpm but not continuous rotation Cutting a rotor for the new fan Rotor cut to 75 cm long and debarked Cutting cane for the fan spokes Fan spokes 50 cm Splitting the spokes Lashing spokes to the rotor with cordage There are 3 pairs of spokes which will hold 6 blades.
The blades are folded leaf squares inserted into the spokes A log is split and lashed at one end The rotor is wedged into the split A nut shell It is added to the top of the rotor as a socket The rotor is spun with the log acting as a counter weight Wetting the socket helps the rotor spin better Making mud for the fan housing The stick that scribes the housing is marked with 4 points past the half way point.
4 points are marked in a cross, each one moving down the marks on the stick The points are then connected to form an increasing spiral or volute Mud is now added to form the walls of the housing The finished fan housing walls The fan must always spin anti clockwise in this housing for it to work Covering the housing with wood as a roof Plastering roof with mud Shaping the air entry Finding where the air entry/ lid boundary is.
Making the lid Taking off lid and inserting fan The fan is folded flat to fit in the opening Once inside, the fan can be folded into its original shape The fan blows wind over the grass a few meters away Making fire Blowing the tinder into flame with the blower Testing on the fire Making a tuyere or clay air pipe for the fire.
Fire drying the tuyere Installing the tuyere View from inside the blower Making a furnace 20 cm in diameter 20 cm internal diameter, 50 cm tall Roasting ore and making charcoal in the same process Taking out the roasted ore Taking out the charcoal 1 hour preheat with wood.
Filling with charcoal 1 handful of ore 3 double handfuls of charcoal one handful of ore Same again This new method is really unergonomic after a while and it takes longer to consume each charge than the original blower I only did 3 charges because it was tiring and it took about the same time as a 6 charge smelt with the original blower The bloom formed under the tuyere Only tiny iron prills formed in the slag, smaller than usual (pause video and look for silver specks).
Volute shaped blower
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Author: Author Link: Youtube Link: https://www.youtube.com/watch?v=Csb-AFD58ww Category: Channel Name: Primitive Technology Channel ID: 28 Tags: primitive,volute,shaped,primitive technology,primitive,technology,tech,primitive tech,technology primitive,tech primitive,prim technology,prim tech,tech prim,technology prim,building from scratch,build from scratch,design,smelting,smelting iron,wood fire,wood,charcoal fire,clay,volute,volute shaped,fire,fire blower,clay design,fire starter,hand cranked blower,forge,fire making,fire blowing,making a fire,wildnerness,handmade fire blower,building with sticks,clay tools,tool,
7 thoughts on “Mature Expertise: Volute Formed Blower”
I tested the premise that some viewers urged to form the blower hand cranked in sing that it spun in a single direction handiest and to shape the housing to take revenue of this. It was urged that even with the hand crank ratio of 1:1, the revenue would be apparent over the authentic intermittent high rpm blower powered with a string. This blower prototype produced a high volume but low stress air dash as a result of the sacrifice of rpm as a result of the 1:1 ratio. I did some rough calculations after making it and mediate that if the fan were scaled up to 1m in field of the 50 cm fan within the video, it’ll also open to compete with the authentic blower produce for the unusual rpm. I made a 1 m diameter fan but was unwieldy though it’ll also accept as true with worked with extra testing, time constraints shunned using it on this venture. For now I’m going to stay with the earlier blower produce till I can form higher the continuous rotation rpm with a durable mechanism. Or take a look at sure displacement bellows and natural draft modes of air present in up coming initiatives.
An impeller with important weight would accept as true with sufficient inertia to be hand-cranked, relying on the flywheel attain to succor its scurry reasonably continuous.
FODA!
The real fact he does the Stone Age factor so successfully is spectacular all on its bear. The work ethic required for it is off the charts insane.
The Primordial Turbo
There’s gotta be a greater manner to smelt the ore down than simply throwing it in by the handful. Some roughly container or one thing?
I in fact cherish how you station the smoke gases on fire when it in fact gets going. Would narrowing the tuyere succor with stress? It sounds cherish it is no longer all the time all that significant anyway which is a disgrace.