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So it seems that around 8lbs. is a good working range. It also seems that 3/16" @ 24" gives that. So in the interest of longer bars and the subsequent higher deck with more room and access how long does a 1/4" rod have to be to get close to the 8lb. range ?
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HUH

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Your overthinking this.

I think you would have to apply the cube rule and allow for the young's modulus of elasticity, taking into account the cross sectional area to length ratio.
Or you could just suck it and see.
Buy a length, say 6 feet, cut it into ever shortening lengths, measuring force until you get whatever you want - ?
Kitchen scales, just in case you ask.

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

The additional length won't make much difference. The cube rule does not apply here. 3/16" bars at 36" give plenty of clamping force for me. But then again, I have some 5/16" bars that I use when I need lots of clamping force.

"What don't you get?" No need to be insulting.

Thank you Barry.

Seems like a good idea to have a few heaver bars for those "times" when you need a little extra. Do you use your deck to clamp your tops and backs to the rims ?

Link

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Cut to size.....Beat to fit.....Paint to match.

Yes, I use the go-bar deck for bracing and clamping the top or back to the rims.

Good question. Back in the dark ages ( before Euler) you would have had to use trial and error. Since the 1700's it's easy to figure it out.

If they're both solid ( and, the same material) , 42.5 inch long 1/4 inch rods will give you about the same force as 24 inch long 3/16 rods. If they're hollow, with the same wall thickness, then it would be about 37 inches for the 1/4 inch tubes.

Phil

Thank you Todd and Phil. That is what I wanted to know !!
Link

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Cut to size.....Beat to fit.....Paint to match.

Really? That's not been my experience.

Edit: sorry, I didn't see Todd's lengthy response.

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I think I get about 6 lbs at 32 inches with the 3/16 bars.

Hey Todd -

Thanks for the math. I didn't know that. Now to see if I can retain it.

Mike

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Mike Lindstrom

I made some 1/4" bars for my 24" deck and I never use them. They are too stiff to be useful in that length.

But I have noticed that 3/16" fiberglass is not all the same. Some that I got from a kitemaking supplier is stiffer than the set I started with from LMI.

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Howard Klepper
http://www.klepperguitars.com

When all else fails, clean the shop.

Wasnt trying to be insulting "if that was a response to me" I didnt get at first we were discussing Go-Bars since he didnt mention it in question . So I was a bit lost at first.

_________________
The Shallower the depth of the stream , The Louder the Babble !
The Taking Of Offense Is the Life Course Of The Stupid One !
Wanna Leave a Better Planet for our Kids? How about Working on BETTER KIDS for our Planet !
Forgiveness is the ability to accept an apology that you will probably NEVER GET
The truth will set you free , But FIRST, it will probably Piss you Off !
Creativity is allowing yourself to make Mistakes, Art is knowing which ones to Keep !
The Saddest thing anyone can do , is push a Loyal Person to the point that they Dont Care Anymore
Never met a STRONG person who had an EASY past !
http://wiksnwudwerks.blogspot.com/
http://www.facebook.com/groups/GatewayA ... rAssembly/