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D-Man

100 kW
Joined
Nov 28, 2006
Messages
1,557
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Ja, that center spar is just right for a lithium powered gatling-gun. :lol:

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:shock:
 
Them wheelchair wheels in the front are cool!

I've visited your web site a few times a while back and was amazed at some of your projects.Keep up the great work! You're around Peterborough right? I used to visit family in the Apsley area & the bass and pickeral fishing was great!

Eric
 
Be sure you are easy on that hub, especially start up shock. I had one on a scooter and destroyed it in 4 months. I rebuilt it once then threw it away after it locked up solid. Cool looking build. I am really dieing to get a welder.
 
I wonder if there is a way to put a 'shock absorber' in the drive train. I'm sure there's a more correct term for it. Several of my old motorcycles had a feature like that to protect the gears. There were rubber shock mounts between the sprocket and hub to allow some movement. The springs in a car clutch are the same idea. I know what happens if the springs fail; the transmission gears break their teeth off almost immediately.
 
fechter said:
I wonder if there is a way to put a 'shock absorber' in the drive train. I'm sure there's a more correct term for it.
Cushion drive or cush drive. Hmmm, good idea...
 

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Y'all may be familiar with washing-machine couplers... the nylon bits are weak, but perhaps they make good models for stronger castings?
 

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I like the general design of the washing-machine coupler. A larger version could be easily fabricated from steel plate and bolts. The rubber insert could be made from any number of sources, including: tires, motor-mounts, etc. Even thinner rubber could be layered to a desired thickness.
 
TylerDurden said:
I like the general design of the washing-machine coupler. A larger version could be easily fabricated from steel plate and bolts. The rubber insert could be made from any number of sources, including: tires, motor-mounts, etc. Even thinner rubber could be layered to a desired thickness.

Head up to your local Pepboys, and look in there "help!" section for a steering coupler. Thats all they were, 2 conectors for either splined, or double D shafts with a piece of rubber in between.

They even have a built in safty mechanism incase the rubber tears, and the rubber is reinforced with Nylon thread, but you could replace it with a thinner sheet of rubber if it proved too stiff. I think mine ran $6.95
 
Drunkskunk said:
Head up to your local Pepboys, and look in there "help!" section for a steering coupler. Thats all they were, 2 conectors for either splined, or double D shafts with a piece of rubber in between.

They even have a built in safty mechanism incase the rubber tears, and the rubber is reinforced with Nylon thread, but you could replace it with a thinner sheet of rubber if it proved too stiff. I think mine ran $6.95
I had a glimmer of a recollection to that effect this morning. Glad you brough it up.
stoddard_couplers.jpg

I'm thinkin something even heftier would be good for a traction coupling.
 
TylerDurden said:
I like the general design of the washing-machine coupler. A larger version could be easily fabricated from steel plate and bolts. The rubber insert could be made from any number of sources, including: tires, motor-mounts, etc. Even thinner rubber could be layered to a desired thickness.
Coupling%20L%20jaw.jpg


http://www.abssac.ltd.uk/Products/Rotary-products/108/Shaft_coupling_-_L_Jaw.html

Found an L-Jaw while shopping the local tractor supply store today and thought of this thread. Google L-Jaw.
 
FrankG said:
Though the L-Jaw looks like it may have potential for the Cub-Cadet conversion (should the snow ever go...) given that it sez "Woods" on the side I would guess that it's for a mower of some sort...

TB Woods is a manufacturer name. They make drives, inverters, gearboxes etc. That jaw coupling is what I call a Lovejoy coupling, which is just another manufacturer name. They'er good for coupling things up that might not be exactly in line. We use them a lot where I work for conveyor drives. They are durable, easy to install and inexpensive. Generally, the "spider" or rubber insert is what eventually goes out.

I guess the best thing about them, is you can get different stock bore/keyway sizes for each side, so you could hook up two different sized shafts without any machining. Also, they are maintenance free in that they never need lube. Also, if the rubber gives out, they still function for a while.
 
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