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| Big Marine Steam Engine |
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| 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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