Lotus Elan

Roadster screen tensioning rods terminations

PostPost by: summerinmaine » Sun Sep 12, 2010 3:43 pm

BTW a 14 gauge spoke is 2.03mm, and it would be easy to cut down and re-thread the spoke from an "ordinary" tho you'd lose the double-butting.
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PostPost by: garyeanderson » Sun Sep 12, 2010 4:19 pm

summerinmaine wrote:BTW a 14 gauge spoke is 2.03mm, and it would be easy to cut down and re-thread the spoke from an "ordinary" tho you'd lose the double-butting.

Hi Jim

I just measured the length of the rusty tensioning rod that I have been using for pictures and it is approximately 20-1/4 inches long. Do you know of any spokes in that would be applicable?
I could use 3 or 4 for my projects and stainless would be just as good as chrome plated where I live.

Gary
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PostPost by: summerinmaine » Sun Sep 12, 2010 9:57 pm

garyeanderson wrote:
summerinmaine wrote:BTW a 14 gauge spoke is 2.03mm, and it would be easy to cut down and re-thread the spoke from an "ordinary" tho you'd lose the double-butting.

Hi Jim

I just measured the length of the rusty tensioning rod that I have been using for pictures and it is approximately 20-1/4 inches long. Do you know of any spokes in that would be applicable?
I could use 3 or 4 for my projects and stainless would be just as good as chrome plated where I live.

Gary


Hi Gary,

That's outside the length range of standard bicycles, so one of the specialist repro "penny farthing" or "ordinary" bike makers would be your best bet. Depending on the particular lacing pattern, a spoke of ~20.25 inches (~515mm becuase spoke lengths are always in metric) would be used on a wheel of ~46-48" (assuming a ~5" hub spoke circle).

Here's a link to a maker http://www.hiwheel.com/parts/index.htm that sells single spokes (usually they come in packs of 28-36). The closest they have is a 20.875" spoke, but maybe they could give you another lead. Or you could probably cut that one to length and re-thread, and preserve the double-butting.

Let us know how it works out.
Jim

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PostPost by: garyeanderson » Mon Sep 13, 2010 11:33 am

Hi Jim

Thanks for doing the research. I kind of figured that the high wheelers would be the place to be looking as I have gutted standard bicycle wheels in the past and found that they were quite a bit to short. Looks like the Hi Wheel spokes may be a bit bigger in diameter but even with my "micrometer eye" I doubt that its going to make any difference in the mechanical aspect of at least having one there. THe price seems quite attractive too.

http://www.hiwheel.com/parts/index.htm
6380 Spoke 20 7/8 48", Radial $2.42
7025 Spoke 21 7/8 48", Tangent $2.42
7035 Nipple .120 $0.50
7036 Nipple .105 $0.25
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PostPost by: summerinmaine » Mon Sep 13, 2010 3:53 pm

garyeanderson wrote:Hi Jim

Thanks for doing the research. I kind of figured that the high wheelers would be the place to be looking as I have gutted standard bicycle wheels in the past and found that they were quite a bit to short. Looks like the Hi Wheel spokes may be a bit bigger in diameter but even with my "micrometer eye" I doubt that its going to make any difference in the mechanical aspect of at least having one there. THe price seems quite attractive too.

http://www.hiwheel.com/parts/index.htm
6380 Spoke 20 7/8 48", Radial $2.42
7025 Spoke 21 7/8 48", Tangent $2.42
7035 Nipple .120 $0.50
7036 Nipple .105 $0.25



Glad I could help Gary.
Jim

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PostPost by: zog » Tue Sep 14, 2010 2:39 pm

These rods are listed as available on the Type26 register:

http://www.type26register.com/misc_hardware.html

Unfortunately, Tim Mees the gentleman who ran this site has recently passed away. I am not sure if anyone has picked it up yet.
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PostPost by: summerinmaine » Tue Sep 14, 2010 3:02 pm

zog wrote:These rods are listed as available on the Type26 register:

http://www.type26register.com/misc_hardware.html



Yes, but at ?39.00 for the "official" rods versus $3.00 for a spoke, it seems worth exploring the latter option. Especially for us "penny tech" guys. :D
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PostPost by: rodlittle » Tue Sep 14, 2010 3:11 pm

Well Ive made my own now, piece of 2mm stainless rod and a screwed on "blob" at the top and a copy of a nipple at the bottom, seems to work fine.
Cheaper than ?39 if you dont count time
cheers
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