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Out-of-round shell

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My rehab of a 12 X 15 WFL floor tom has stalled out. I've discovered that the shell is slightly out of round on the reso side only. I suspect this is probably because it was left without a bottom head and hoop on it for a long time. The shell is stripped down to bare wood, and when I tried to fit a head on just to check it out, I could just barely force it on, and it's stretched kind of oval with waves in the head developing at the 'points' of the oval. There's absolutely no way I'd be able to get a head on it once I re-wrap the shell. The batter side is still fine.

Has anyone here dealt with this type of problem before, and if so, what did you do? Is there anything that can be done to get the reso side of the shell back into round, or close to it?

Thanks.

Scott

Posted on 14 years ago
#1
Posts: 2628 Threads: 40
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[COLOR="DarkRed"]The only thing I have done a few times is this:

Once wrapped, with the lugs and batter head installed on that side.....and 2 lugs opp. each other left off of the res side....

Next, I have taken a threaded rod and run it through the lug holes on the res side, added washers and wingnuts and tightened just a bit to put the edge back near round....

Then have put on the head. Then the hoop.

Then started tensioning the 6 remaining lugs/rod...then removed the threaded rod, installed the last 2 lugs and finished tightening.

It gets the head on over the wrap for sure..the only things to consider are:

1) do you wanna be doing this each time you change the res head (which wouldn't be often) ?

B) it will still end up being a bit funky to tune (unequal tensions on the lugs and all that. But again, it's the res head....

3) is moving the entire shell that little bit gonna start messing with the wrap contact to the shell surface...or will the glue hold it to the shell so that wrap and shell will act as one ?

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www.2ndending.com
Posted on 14 years ago
#2
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Thanks Jaye, I appreciate the input.

So I assume this means there really isn't much that can be done to get it back in-round before wrapping it, right? In other words, an actual "repair" vs. a workaround to get the head on?

Thanks again.

Scott

From Jaye

[COLOR="DarkRed"]The only thing I have done a few times is this:Once wrapped, with the lugs and batter head installed on that side.....and 2 lugs opp. each other left off of the res side....Next, I have taken a threaded rod and run it through the lug holes on the res side, added washers and wingnuts and tightened just a bit to put the edge back near round....Then have put on the head. Then the hoop.Then started tensioning the 6 remaining lugs/rod...then removed the threaded rod, installed the last 2 lugs and finished tightening.It gets the head on over the wrap for sure..the only things to consider are:1) do you wanna be doing this each time you change the res head (which wouldn't be often) ?B) it will still end up being a bit funky to tune (unequal tensions on the lugs and all that. But again, it's the res head....3) is moving the entire shell that little bit gonna start messing with the wrap contact to the shell surface...or will the glue hold it to the shell so that wrap and shell will act as one ?[/COLOR]

Posted on 14 years ago
#3
Posts: 2628 Threads: 40
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[COLOR="DarkRed"]l don't believe so - l mean theoretically l suppose one can put on that threaded tension rod as l mentioned - and maybe wet that side of the shell through and through - then let it dry completely over the period of several days in a warm dry room. But that's only theoretically... y'know ? Maybe worth trying with a junk shell first.[/COLOR]

www.2ndending.com
Posted on 14 years ago
#4
Posts: 6287 Threads: 375
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There is an arcticle on not so modern drummer about steaming an rk shell that may be worth a look.... perhaps some inspiration or variation thereof could be gained.

Kevin
Posted on 14 years ago
#5
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Also another solution is aquarian makes the american vintage drum heads which are slightly over-sized for this very problem, also the mighty Remo will custom make you this same thing,it takes awhile to get them,every 6 months they will stop regular production for a day and make custom ordered heads, so you have 2 chances a year to get in there rotation for custom ordered heads

Your drummers not much good is he!? What you need is someone that's as good as me. ! John Henry Bonham !!
Posted on 14 years ago
#6
Posts: 90 Threads: 15
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I had a similar "slightly out-of -round" problem with an 8x12 Slingerland 3-ply tom shell which in its sordid past obviously spent time single headed. I simply took a sanding block with 220 then 400 grit sandpaper and worked slowly around the lower edge until the head slipped on.

There were no glue separations between the plies or the re-ring so a little cleaning up of the edge with 400 and 600 sandpaper, some beeswax on the edge, the drum tunes easily and sings like a good mid-sixties Slingerland tom should.

Regards

Don

Posted on 14 years ago
#7
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From DonS

I had a similar "slightly out-of -round" problem with an 8x12 Slingerland 3-ply tom shell which in its sordid past obviously spent time single headed. I simply took a sanding block with 220 then 400 grit sandpaper and worked slowly around the lower edge until the head slipped on. There were no glue separations between the plies or the re-ring so a little cleaning up of the edge with 400 and 600 sandpaper, some beeswax on the edge, the drum tunes easily and sings like a good mid-sixties Slingerland tom should. RegardsDon

Thanks to everyone for the good suggestions. As it turns out, Don's suggestion above may end up being the one I have to go with, for a couple of reasons:

1. It's a Club Date shell, meaning that the lugs are mounted in the center of the shell, so there are no lug holes near the edge to utilize for running a threaded rod through and pulling the edges closer together.

2. On closer investigation, I discovered that the out-of-roundeness is not really like a circle pressed into an oval with two 'points', but more of a triangle. In other words, when I force the head on, it contacts the shell tightly at three points and leaves extra space beween the head and shell in between the points. What this means is that I can't pull two opposite sides closer together because the three points that need to be pulled inward aren't opposite each other.

So I think a combination of a little careful sanding and a larger vintage style head may be the route to success with this drum.

Scott

Posted on 14 years ago
#8
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