RE: [multimachine] Re: Jeremmy in Kenya has a problem
- With Mr. Kiely's "using what is at hand" in mind, bearings for his axles in the concrete filled drum could be made of hardwood blocks bored to fit the axles, whatever size they happened to be. They could be made with hand tools if necessary, and if a little rough would "wear in". Once in operation, however, the load stress at the low speeds this thing will be running will harden the bearing surface and give it a glaze-like surface. The harder the wood the better, of course. Hardwood bearings were often used in farm implements before manufactured bearings and synthetic materials became so widely available. I worked in an implement manufacturing plant in the 80's that was still using them in small limited applications because they "hadn't found anything competitive enough to make it worth changing." I have also seen them used as bearings for large wooden drums (10' dia. x 4' wide), but with thin plastic (nylon?) liners similar to the crank shells in an automotive engine. Just sayin'
Date: Sun, 2 Dec 2012 14:19:08 -0800
Subject: Re: [multimachine] Re: Jeremmy in Kenya has a problemSometimes you have to use what is to hand.But agreed a simple standard drum would be too thin, so in that case you could fill it with concrete and fix a metal shaft through the center?This would give the weight needed, an axle through the center, if metal is in short supply it need only go some of the way through and even if the outer metal skin starts to break and wear it shouldn't matter to much.John Kiely (IRL)From: Pat Delany <rigmatch@...>
To: "email@example.com" <firstname.lastname@example.org>
Sent: Sunday, December 2, 2012 10:06 PM
Subject: Re: [multimachine] Re: Jeremmy in Kenya has a problemHave to find out for sure, but I think Jeremmy was told to build a roller from a drum. Really too thin material in my mind.From: Wes Jones <wes@...>
Sent: Sunday, December 2, 2012 2:55 PM
Subject: Re: [multimachine] Re: Jeremmy in Kenya has a problem
- Had not heard from Jeremmy in a few days, turns out that his malaria kicked in again and he was back in hospital. He was able to borrow a visitor's laptop to let me know.When he gets out, I'm going to wire him $30 to buy aluminum scrap. He has been trying to collect aluminum for months but has only come up with a stack of clutch disks from a tractor. Can't imagine what kind of an alloy it would be.Pat
From: David G. LeVine <dlevine@...>
Sent: Monday, April 15, 2013 6:15 PM
Subject: Re: [multimachine] Jeremmy in Kenya has a problem
On 04/12/2013 10:17 PM, Shannon DeWolfe wrote:
His concrete is drying and he is now looking ahead for a solution tothe chuck back plate problem.
Dumb idea: How about a manhole cover for a really big faceplate? Good flat cast iron...
"Among the many misdeeds of British rule in India, history will look upon the Act of depriving a whole nation of arms as the blackest."
Mohandus Ghandi, An Autobiography, Page 446.