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COB Rogers Dynasonic dent

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As some of you may remember, I bought my first Dynasonic a little while ago. I posted about it here. I am now using this drum as my main snare for jazz - and I absolutely love it.

When I took it apart for cleaning, I noticed a dent in the shell where the strainer is fastened. It is not a big dent, and I thought that it most likely was intentional, to make way for the strainer.

However, yesterday I checked out this incredible wood Dynasonic on Youtube[/url], that Steve Maxwell makes a beautiful demonstration of.

[ame="https://www.youtube.com/watch?v=r0SfiXcebJ4"]Steve Maxwell Vintage Drums - (Rogers 5x14" Wood Dynasonic Snare Drum - 2/19/15) - YouTube[/ame]

Steve Maxwell does give a rather nice walkthrough in the video on how to set up the snare mechanism. While doing so he mentions that many COB Dynas are dented by the strainer, and that the reason they have these dents is that the snare mechanism has been set up incorrectly, with the strainer and snare bridge pulled up too tightly.

Now this, I thought, must be what has happened with my drum, before my day.

So, I would like to know:

1) Should I attempt to get the dent out of the shell (it is the area surrounding the two holes for fastening the strainer that is dented). It is not a big dent.

2) If so, how do I do this without damaging the shell.

I don't want to risk the shell, since this drum is a dream come through for me. So I'd rather live with the dent than without this drum.

/Magnus

Posted on 10 years ago
#1
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HY Magnus_N

if they Drum sounds good- iwould leave it the way it is! See it as a personal charakter of the drum:-) and it´s vintage:-)Yes Sir

regards

Christian

Posted on 10 years ago
#2
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It's fairly easy to knock these dents out with a soft mallet and a sand bag (on the underside).

Posted on 10 years ago
#3
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From Ron_M

It's fairly easy to knock these dents out with a soft mallet and a sand bag (on the underside).

Seconded what Ron said....

Posted on 10 years ago
#4
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Rubber mallet on a sand bag is good, or if you can't get a sand bag...You can take and lay it against a 2x4 but make sure you lay a cloth down like a towel to keep from scratching. And when you do hammer it either way, make sure your hitting the hammer as flat as possible on the dent. This way the edges of the hammer wont leave ding marks or give you waviness on the outside.

jason

Posted on 10 years ago
#5
Posts: 430 Threads: 15
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Dynas get dented behind the strainer and behind the lugs. I've even seen one dented behind the tone control.

How do these dents happen? Because the drums got dropped a lot over the last 50 years. It doesn't have to be dropped from very high up to make a dent - 12" or less of a fall will do it. Remember, these drums can go thru a lot of owners, got played in a lot of garages, got kicked around and abused by young guys who didn't care.

With all due respect to Mr Maxwell, overtightening the snares cannot really dent the shell. Those shells are thick and tough. Trying to bring the frame up tightly enough to dent the shell would probably break a string before the shell gave way.

I've seen them dented behind the throwoff so deeply that a perfect impression of the base of the strainer was left in the shell, and I've seen a number of drums with dents behind every lug. All from abuse and dropping the drum.

As far as removing a dent, it can be done - but if the dent is creased it will be tough to get it totally smooth.

For a drum in excellent shape that merits a near-perfect repair, the place to go is to a shop that specializes in fixing other brass instruments: saxes, horns, etc. Those guys have the tools and the technique to do an excellent repair.

Also, be aware that the seam in the shell is behind the throwoff. I've seen the shell cracked in that area because it was badly dented and/or someone went overboard trying to remove the dent.

Posted on 10 years ago
#6
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Thanks guys for excellent advice all around. Since no-one seems concerned about the dent think I will go with you, Christian, on this one and just let it be. It is quite small and the drum sounds fantastic.

Ron, Ludwig-dude and Jason, your instruction on how to remove the dent are much appreciated. If I finally do decide to do something about the dent, I will probably do as DanC suggests and give it to a professional.

Thank you, DanC, for pointing me to the right specialists and for sharing a wealth of valuable information about dented Dynas.

I love this forum!

/Magnus

Posted on 10 years ago
#7
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DanC is one of our most valued Rogers experts and what he says you can take to the bank.I love this forum too,now go and enjoy one of the very best snare drums ever made for most styles of music.You can leave that minor dent for the next owner to deal with and just have fun enjoying that jazz tone that she easily puts forth...

Wayne

1967 Rogers Cleveland Champagne Sparkle
20,16,13,13.
1967/68 Rogers Dayton Champagne Sparkle
20,16,13,13.
1966 Rogers cob 7 Line Dynasonic Snare.
1967 Rogers "Humberto Morales" Timbales.
1980 Ludwig B/O badge 14x 6.5 Black Beauty Snare.
1980 Ludwig B/O badge Red Cortex
22,22,18,16,15,14,13.
1988 Sonor "Horst Link" HLD 590 14x8 Bronze Snare
Posted on 10 years ago
#8
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From DanC

Dynas get dented behind the strainer and behind the lugs. I've even seen one dented behind the tone control. How do these dents happen? Because the drums got dropped a lot over the last 50 years. It doesn't have to be dropped from very high up to make a dent - 12" or less of a fall will do it. Remember, these drums can go thru a lot of owners, got played in a lot of garages, got kicked around and abused by young guys who didn't care.With all due respect to Mr Maxwell, overtightening the snares cannot really dent the shell. Those shells are thick and tough. Trying to bring the frame up tightly enough to dent the shell would probably break a string before the shell gave way.I've seen them dented behind the throwoff so deeply that a perfect impression of the base of the strainer was left in the shell, and I've seen a number of drums with dents behind every lug. All from abuse and dropping the drum.As far as removing a dent, it can be done - but if the dent is creased it will be tough to get it totally smooth. For a drum in excellent shape that merits a near-perfect repair, the place to go is to a shop that specializes in fixing other brass instruments: saxes, horns, etc. Those guys have the tools and the technique to do an excellent repair.Also, be aware that the seam in the shell is behind the throwoff. I've seen the shell cracked in that area because it was badly dented and/or someone went overboard trying to remove the dent.

100% with Dan. It seems really obvious to me that the throw sits out a long way on a little pedestal, so it gets knocked. I've found that the shell really wants to spring back to shape and a hard rubber mallet the correct size for the dent will do the job very easily. However as Dan says, if the dent is across the seam, you can spring the shell open a little bit too. If it's bugging you (it would bug me) I'd take it to someone who knows what to look for as far as the repair goes. I have done a few. One Powertone actually has a tiny separation in the seam but it's not going anywhere and the dent is gone - it was a larger dent and the split in the weld probably happened when it was dropped. I stripped the lugs in that area, laid it on a wood bench with padding, gave it a tap and it went right back. Brass is soft enough to take this. $00.02

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Posted on 10 years ago
#9
Rogers Drums Big R era 1975-1984 Dating Guide.
http://www.vintagedrumforum.com/showthread.php?t=24048
Posted on 10 years ago
#10
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