Gallery, Projects and General > Project Logs
Joint Project - Building two little Elmer #25 engines
Bernd:
Chris,
The piston and stroke are different between the #25 and the #9. The #25 Wobbler has 3/8" bore and a 1/2" stroke were as the #9 H Twin has a 1/4" bore by 3/8" stroke.
Check your PM in a few minutes. I have something for you.
Bernd
spuddevans:
--- Quote from: craynerd on June 29, 2009, 08:03:42 AM ---Talking of a video - have you taken one of your yet?
--- End quote ---
I did make one, it's linked from my build thread, but here's another link Clicky
Tim
raynerd:
Well all was going so well this evening- however I had snapped a 1.5mm drill bit going down the frame for the air intake as my final hole to be drilled :doh: The frame will have to be remade but me being impatient and wanting to know if this little engine runs, left the plugged up hole and redrilled from the top. I counter-sunk and tapped M6 and then drilled the centre from a M6 bolt and used this as my air intake. This allowed me to at least put the parts together and see if it runs. The frame can be remade for aesthetics later - the air intake doesn`t look particularly good on the top side of the frame!
I put all the parts together, turned on the compressor and I nearly had a heart attack - it run without any problems. A bit sticky to get going but was perfect when it was running. I played around for a good 5 minutes and it ran smoother and smoother - went to get my camera, was just about to turn it on and "pop" bits fly everywhere. The silver solder had worked free from cylinder and pin - the spring propelling everything for added effect!
Well it ran ... then it stopped and exploded - but at least an immediate success. I can at least sleep knowing that another few days of cleaning, polishing and re-soldering and we`ll have a couple of working engines.
sbwhart:
Well done
Its a runner
:clap: :clap: :clap: :clap: :clap: :clap: :clap: :clap: :clap:
Stew
raynerd:
For a short time at least! Clearly my silver soldering needs some improvements.
Chris
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