Gallery, Projects and General > Project Logs
Big Marine Steam Engine
doubleboost:
Time for a crank shaft
I was going to build a disc type (nice and easy) then Rob Wilson recond a built up crank would be easy :) :) :) :) :)
The engine will have a 3.4 inch stroke so the crank will be a nice meaty job
The 2 webs were welded together then machined in to submission
A bit of en8 bar wea turned up for the big end 7/8 diamiter with 3/4 shoulders 3 thou interfierence fit in the webs
25 mm stainless bar for the mains this was turned between centers (my first attempt at this )_
Turned down to be a nice fit in the webs then a 3 thou press fit
Rob pressed the job together for me 10 ton was mentioned.
Just to make sure i welded it as well
Back between centers for a final clean up
Welding allowed me to put fillets on the webs
To say i am pleased with the finished job would be a understatement
Even took some video of it going around
Pattern for the base next (i hate wood work) :( :(
arnoldb:
Good going John :thumbup: - this is a nice BIG 'un :D
I love your drive dog :)
Regards, Arnold
sbwhart:
Those glass drive dogs are top notch, where did you get them from John.
:D
Stew
Bernd:
That's going to be some monster of an engine. :bugeye:
Great work John. :thumbup:
Bernd
Brass_Machine:
Gonna be a big one. Are you going to power anything with it?
Eric
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