[TheForge] bellows

[Paul N]

I want to be able to disassemble, particularly if I don't get the valves quite right on the first try. 




On Dec 31, 2010, at 10:48 AM, James Davis <jimbob785 at hotmail.com> wrote:

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> why not use ring shank nails or roofing nails to keep them from pulling out?
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> Jim Davis
> 
> Be who you are and say what you feel...Because those that matter, don't mind, and those that mind, don't matter! 
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>> Date: Fri, 31 Dec 2010 09:16:50 -0600
>> From: crosspein at sbcglobal.net
>> To: theforge at mailman.qth.net
>> CC: bluestoneforge at gmail.com
>> Subject: Re: [TheForge] bellows
>> 
>> Allen,
>> Where did you get your canvas? I've started shopping around, and find 
>> the weight value of the canvas to be ambiguous. Some use ounces/sq yard, 
>> others use ounces for 22" x 36", and then there's the numbered and 
>> "naught" values, which are based on the weight, but I'm not sure if that 
>> weight is the sq yard, or the 22x36 version <sigh>
>> 
>> I've found some local upholsterers and custom tarp places. I'll probably 
>> try a couple of those, but I'm expecting to have to wait until monday to 
>> actually reach some of them.
>> 
>> As someone mentioned, if I buy the heavy canvas online, it isn't all 
>> that much cheaper than leather.
>> 
>> Meanwhile, I have my paddles cut from 3/4" 11-ply plywood, along with 
>> the floating ribs. Today's activity will be making some stiffeners so 
>> they won't twist or warp, along with gluing up the nozzle blank and 
>> perhaps the valves.
>> 
>> I've decided to go with "finish washers" and screws to hold an oak band 
>> over the edges of the fabric.
>> 
>> So far, the layout took the most time (probably about 2hrs making a full 
>> size pattern on paper) then maybe another 1 or so cutting the paddles. 
>> So this project isn't all that time consuming... yet.
>> 
>> I have a pretty well equipped wood shop that hasn't seen much use since 
>> I lit my first forge. (Actually, this project was an attempt to reduce 
>> some lumber inventory) Having a top of the line saber saw and router 
>> made pretty short work of the cutting.
>> 
>> Happy New Year everyone!
>> 
>> **Paul
>> 
>> On 12/20/10 2:04 PM, Allen Ortery wrote:
>>> We just rebuilt the one at New Salem. 16 to 20 oz. canvas works
>>> great. the canvas that we replaced had been on the bellows for 20+
>>> years. Make sure to seal the canvas, used concrete sealer from Sherwin
>>> Williams. The plywood may not hold the nails well, lot of pressure.
>>> Ours is made out of real wood, even the floating ribs you can't see,
>>> the good solid core plywood might work best, unless some has built one
>>> out of the other stuff with success.
>>> 
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