Now that's a very nice piece of work. WRT the laser cut discs, given their size and the amount of material removed when cutting, do you have to build in a tolerance in size to compensate for the loss by laser (hope this makes sense)?
I made a similar burner but it does not burn properly inside a boiler. I suspect there is something wrong with the air/gas mixture (too much gas, maybe)? Have you experienced this?
There is room for experiment. One I made for a 15mm flue worked best with alternating holes and slots. Some versions I have added a sleeve to reduce the air. A good burner may not work well outside the flue.
I like the trick of piercing sheet brass with a needle for setting the jet size! I have only used commercially available burners (just made for camping) and those that can run on multiple fuels come with chunky solid brass jets in fixed sizes for diesel/gasoline/propane/alcohol. I would like to experiment with arbitrary jet sizes to get a gentler flame, but didn't have a method for making holes that small through 3mm of brass. You got a nice gentle flame, nothing like the near blow-torch torrent I get. How thick is the brass you used for the jet?
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A very nice job 👍👍👍 I must remember the trick with the sewing needle 👍 Cheers, Alan.
Wonderful little part David. You certainly are the master at making tiny things. Love watching your videos and learning. Cheers Nobby
As usual, good stuff... fun watch!
Done like a professional. Great work mister. That burner works and looks really good.
Flame tips are really consistent 👌
Very impressive, as always!
Thanks for sharing the machining and art with us :)
Love the gas jet David. Excellent job.
I like so much your skills. You have a lot of experience . Thanks for video
Now that's a very nice piece of work. WRT the laser cut discs, given their size and the amount of material removed when cutting, do you have to build in a tolerance in size to compensate for the loss by laser (hope this makes sense)?
@@BruceRobinson-tz8cj There is an offset detail in the software if you want it really accurate.
Good tip re: the Acrylic paint resist, thank you. Did the U/S cleaner manage to remove that residue too?
It does not remove the paint.
I made a similar burner but it does not burn properly inside a boiler. I suspect there is something wrong with the air/gas mixture (too much gas, maybe)? Have you experienced this?
There is room for experiment.
One I made for a 15mm flue worked best with alternating holes and slots. Some versions I have added a sleeve to reduce the air. A good burner may not work well outside the flue.
I like the trick of piercing sheet brass with a needle for setting the jet size! I have only used commercially available burners (just made for camping) and those that can run on multiple fuels come with chunky solid brass jets in fixed sizes for diesel/gasoline/propane/alcohol. I would like to experiment with arbitrary jet sizes to get a gentler flame, but didn't have a method for making holes that small through 3mm of brass. You got a nice gentle flame, nothing like the near blow-torch torrent I get.
How thick is the brass you used for the jet?
Brass disc is 0.005" thick. I have used discs made from drinks cans before and made with a hole punch.
Que maravilla de trabajo. Ese cariño por el oficio se está perdiendo hoy en día.
Nice!
Great job , Wy 28,2 degrees ?
I calculated this would evenly space the holes.