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  #21  
Old 02-27-2020, 01:21 PM
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tnmike tnmike is offline
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Outstanding. I use to go to the junk yard in Asheville all the time when I lived in NC. It was unreal what got scrapped there. I'm in rural E TN now...no yards
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  #22  
Old 02-29-2020, 09:04 PM
threepiece threepiece is offline
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More parts from the paper shear and other goodies.
In front is a 3.75” diameter shaft with three pillow style plain bearings and a lobe/crank pin with connecting rod. This assembly weighs 856 lbs.

Next to is is the cast iron cover that shields the pinion, intermediate and crank gears. Next to the cover are the two bearing supports for the flywheel shaft. The bearing support on the right has a hole to support the rod for the intermediate gear.

These as well as the flywheel are the main parts for the wood splitter I wish to make.

The coffing chain hoist and the Trek 400 road bike were had from the scrap yard as well.
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  #23  
Old 02-29-2020, 09:16 PM
threepiece threepiece is offline
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Showing the components on the shaft. I’m not sure what to call the part in the middle. It’s not really a lobe as it does not have a follower. Rather it has a connecting rod but it does not have an offset pin like a crank shaft. In any case I was delighted to see it buried under all the other parts in the shear. I knew then I had the makings of some serious force for a low speed splitter.
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  #24  
Old 03-01-2020, 03:03 PM
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Quote:
Originally Posted by threepiece View Post
Showing the components on the shaft. I’m not sure what to call the part in the middle. It’s not really a lobe as it does not have a follower. Rather it has a connecting rod but it does not have an offset pin like a crank shaft. In any case I was delighted to see it buried under all the other parts in the shear. I knew then I had the makings of some serious force for a low speed splitter.
It is an offset pin, but the diameter is larger than the stroke. Most would call it an eccentric.
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  #25  
Old 03-03-2020, 12:01 PM
threepiece threepiece is offline
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Quote:
Originally Posted by tnmike View Post
Outstanding. I use to go to the junk yard in Asheville all the time when I lived in NC. It was unreal what got scrapped there. I'm in rural E TN now...no yards
Yes, I’m sure some reading this thread would not believe me if I showed the quantity of hand tools, power tools, machinery, building materials and whatnots I have gotten from one scrap yard just in the last four years.

I’m moving to a rural part of Ohio in the not too distant future, I need to bring much of it with me as a source of entertainment as I know I won’t be finding much there.
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  #26  
Old 03-03-2020, 12:21 PM
threepiece threepiece is offline
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A picture of a splitter somewhat like the one I have in mind. The connecting rod or link is in compression and quite large.

Mine is much smaller so I plan to move it to the center, between the pivot and the wedge. In this manner it will be in tension.
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  #27  
Old 03-03-2020, 09:43 PM
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I've seen this locally, a guy made a splitter from a old hit and miss engine. Kept the flywheels and crankshaft and mounted a walking beam over top with an axe welded to it.
He used the existing con rod to connect to the walking beam, under compression as most rod ends are designed to be compression and tension would pull the rod cap off.
Stroke was about 6 inches
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  #28  
Old 03-06-2020, 05:05 PM
threepiece threepiece is offline
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Quote:
Originally Posted by Ironman View Post
I've seen this locally, a guy made a splitter from a old hit and miss engine. Kept the flywheels and crankshaft and mounted a walking beam over top with an axe welded to it.
He used the existing con rod to connect to the walking beam, under compression as most rod ends are designed to be compression and tension would pull the rod cap off.
Stroke was about 6 inches
You have caused me to reconsider my approach. I am now considering making a connecting rod, one with the integrity to be used in compression. I will look into it more closely when the time comes.

I want to calculate the ratio of the driveline. I want a cycle speed about 40 SPM (strokes per minute).
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A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

Aren't energy consumption and computers supposed to make life less stressful?

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