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Posted by Tom Gardner on April 12, 2008, 1:15 pm
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> Wow, it's a shame this list is really getting spammed these days.
> Thanks John, that's an interesting tool. I'm not sure if it would work
> at the lengths we're using... usually 4' or longer sections. Tom, we
> do about 100 pieces per run, most of which are 4-4 1/2" feet long,
> with an average quantity of 80 #27 and F size holes in each piece.
> Right now we use a combination of Cogsdill fork bit and a hand tool,
> which is murder. Anything faster than that would be an improvement.
> That's why I was thinking that maybe there was a nylon abrasive brush
> that could just be spun down the inside of the tube. It doesn't have
> to be perfect on the inside, just basic de-burr.
>
> Thanks,
>
> Dave
It there any reason not to use wire? In any case, the way to do the inside is
with a "Pig" of square cut brushes ganged on a shaft and pushed through or back
and forth. Or a twisted-in-wire square cut tube brush. Neither will be cheap
but they will reduce the job to almost nothing. To spin a brush down the
length, you will need a series of support bearings fed in with the brush to keep
the shaft centered. Send me a print and call me toll-free 888-411-3265 and
we'll get you some solutions.
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> Thanks John, that's an interesting tool. I'm not sure if it would work
> at the lengths we're using... usually 4' or longer sections. Tom, we
> do about 100 pieces per run, most of which are 4-4 1/2" feet long,
> with an average quantity of 80 #27 and F size holes in each piece.
> Right now we use a combination of Cogsdill fork bit and a hand tool,
> which is murder. Anything faster than that would be an improvement.
> That's why I was thinking that maybe there was a nylon abrasive brush
> that could just be spun down the inside of the tube. It doesn't have
> to be perfect on the inside, just basic de-burr.
>
> Thanks,
>
> Dave