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Author Topic: Line shaft portion of the woodworking shop build for the M91 complete. Mostly out of wood, of course  (Read 69 times)

Adirondack Jack

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The main line shaft and it’s drive wheel, a floating input jack shaft, tensioned by engine positioning, and two hand sewn belts made from 3D printer drive belt material.

The belts I sewed using 4-0 nylon suture needle and thread, after tacking the belt ends together with thick CA.

The pulley wheels are maple, everything else is 1/8 Baltic birch ply. The shafts each run on two ball bearings in pillow blocks made with a scroll saw and fly cutter to do the bearing bores.

I set it up tonight, wedged the intake valve open a crack to keep the engine from pumping fuel, and gave it all a spin by hand. Everything looks happy enough to go forward with a docking “sled” to position the engine and tension the input belt.

As you can see, it’s a true kitchen table project. One of the perks of living solo.


St Paul Steam

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Very nicely done there , good craftsmanship exuding from that functional and beautiful pulley system.😊
Bruce
St. Paul Indiana , USA

Adirondack Jack

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Just donít look too close at the drive hub on the engine. I roughed it out with a slight taper, and left it rough as a cob because itís only 1inch diameter, and it was either allow grip or add tension. I chose grip. Grin.

Steam Technology

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All looks fine to me, a wonderful idea to load the engine up.
ALWAYS WORKING TO FIND A CURE FOR CENOSILLICAPHOBIA
Cheers. Dave.

Adirondack Jack

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All my life Iíve been interested in old things or models of old things. The only condition? They must function.  When I rescued a nearly 150 year old rifle that had been in a museum for fifty years, I shot it, and sold it to a guy who took a bison with it.  I have no use for wall hangers.  The engine has to do work. Thatís what theyíre created for.

Steam Technology

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Yes I agree that engines should have work to do.
ALWAYS WORKING TO FIND A CURE FOR CENOSILLICAPHOBIA
Cheers. Dave.

 

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