Strange Pedal Mounting Problem. Your thoughts are appreciated.

vyacheslav

Senior Member
Greetings,

I fixed up an Olympian MIJ kit that I now have all the hardware for. I'm still waiting on a front bass drum hoop and head, but I was anxious to get these set up and play them, as well as mark all the spaces for my stands on my rug (like I do with every kit). I figured not having a front hoop or head would not affect any of that. BTW, that's the original hoop, but the inlay was missing. This drum has some pretty major fading, almost to a midnight blue, which I actually like better. The closest I could get was Blue Glitter inlay from Precision Drum Company. I know it doesn't quite match, but I actually like the contrast between the two shades of blue, it's cool looking and unique, at least to me. Back to the task at hand:

I went to set up the kit, and as always I start with the bass drum. When I went to clamp the pedal on and get started, I had something odd happen that I have never seen before. Hopefully the pictures will help tell the story.

I set up my bass drum (no pedal) so that it's pretty level front to back. After I clamp on the pedal, I adjust the spur length as needed. I usually like the front of the bass drum off the ground a few inches, but nothing extreme. Photo 1 below shows how I started off the bass drum positioning. Pretty standard stuff. Photo 2 below shows the front of the bass drum with that same positioning. Again, very standard, no extreme or weird angles going on.

Photo 3 shows the pedal attached loose, not tightened down at all. As expected, the batter side of the bass drum is now a bit higher because of the pedal being underneath it. When I go to tighten down the pedal is where the problem starts. The pedal won't stay flat on the ground, and as the toe clamp tension increases, it lifts the back of the bass drum higher and higher off the ground, while the pedal itself raises off the ground.

Photo 4 below shows the same as photo 3, but in Photo 4 the pedal is tightened down firmly. You can already see the difference in the pedal between the two pictures. In photo 4, the pedal is tilted back at further angle, away from the head. Photo 5 shows a close up of what's happening when the pedal gets tightened down. You can clearly see that the base of the pedal directly under the hoop is off the ground and slanting backwards.

When this started happening, I thought that I needed to adjust the spurs outward (make them longer) so that the front end of the bass drum would be higher and this would also, in theory, put the batter side lower to the ground.

See the final two photos below (6 & 7). All this did was make the entire drum higher off the ground, and made the pedal go even higher and at more extreme of an angle.

I tried this with 4 different pedals, including a heavy duty Tama with a solid base plate, and it happened on all four pedals. Since the solid base Tama can't "float" like the others, almost the entire pedal was in the air while attached to the hoop with the spurs in position like photo 6, only the heel section was in contact with the carpet. So weird! The batter side hoop is the original wood hoop the drums came with, a standard 1.5" wide wood hoop. It is not thicker or thinner than any other of my wood hoops. I am using a small piece of a thin mouse pad to protect the hoop where the pedal clamps to it. I know this can't be the problem, because I use this same thing on several other kits with no issues.

In all my years of setting up kits, I've never had this problem before. What could be causing it? I am puzzled!

I know that on virtually all pedal set ups, when the pedal is loose on the hoop, the linkage or drive is very close to the head. As you tighten down the toe clamp, the linkage gets further and further away from the head, but the pedal always stays firmly on the ground.

I would really appreciate your suggestions on this one. I've never been stumped like this before.

Thanks for your help!
 

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Mongrel

Silver Member
Re: Strange Pedal Mounting Problem. Your thoughts are appreciated.

Just off the top of my head, some thoughts...

First I would loosen the spurs and let the drum rest on the lugs. Then I would try attaching the Tama pedal with the bass plate and see how things "felt"\looked... It is hard to tell by the pics but it seems the front of the drum is pretty far off the floor. (If anything, when tightening up my pedal it will cause the batter side of the bass drum to rise a bit, not the front). See if this makes a difference. Then try and raise the front up-just a hair or two.

Second thought-the pedal in the pics seems to have a bent "strap" connecting the heel plate to the main base. Maybe that is having something to do with it?

Third thought-rotate the hoop on the batter side and see if the pedal acts the same way. Maybe there is something funky going on like warping?

Like I said, just "off the top of my head" thinking here...
 

GruntersDad

Administrator - Mayor
Staff member
I second the thought on the bottom brace being bent where it meets the hoop tightening screw assembly.
 

opentune

Platinum Member
your spurs, the way they are situated, are in some ways lifting the entire bass drum, not just tilting the front up. thats why it would lift the base of the pedal too. lifting the pedal has it rotate its beater back in absolute terms (i.e. angled with horizontal floor), but likely not much relative to its distance (angle) to bass drum head.

too much tilt is never good anyway, you re straining/bending the wooden bass drum hoop at the pedal.

you could always replace the spurs with something more heavy duty and front situated.

nice 3 ply shell in there.
 
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GruntersDad

Administrator - Mayor
Staff member
You might try pushing the spurs all of the way in off of the floor, attaching the bass drum pedal first and then using the spurs to make the bass drum level. Just off of the floor the same distance as the batter hoop, no more.
 

Galaxy

Senior Member
It is your low quality pedal flexing when tightened. If it had a solid baseplate,I feel that wouldn't happen.

Leave the spurs alone,nothing can be done with those.

If you can look really closely at the clamp and hoop as you slowly tighten, watch what is causing it to tilt back.

You may be able to shim it in some way.
 

opentune

Platinum Member
It is your low quality pedal flexing when tightened. If it had a solid baseplate,I feel that wouldn't happen.

Leave the spurs alone,nothing can be done with those.
the OP states it happens with '4 different pedals ' including a Tama IC which has a hefty base plate. Its not the pedal.
 

Mongrel

Silver Member
The last picture (clearly?) shows that bass drum is "nose high".

Like I said-retract the spurs all the way in, get a different pedal without the bent strap (I suggested the Tama because of the full base plate), and see how it looks then. (NOT suggesting to play it this way, it is just to get an idea of what is happening).

This removes both the spurs and the "bent strap pedal" from the equation. After you establish what the problem is you can go to the next step.

I suggested rotating the hoop, becase it is typical to mount the pedal at the spot that is already worn out from years of mounting the pedal at the same spot. It may also be why it could be warped at that spot and causing or helping cause the issue. It would be difficult to see this in pictures though.

I (still) think the problem is too severe of an upward angle, and that pedal.
 

Tommy_D

Platinum Member
The pedal does not look like it is fully seated on to the hoop. It looks like it is grasping the hoop from the very end of its clamping area. It also looks like the bottom of the pedal has an angled recess where the hoop is currently being clamped on to. This angle is causing the pedal to lean back because it is leaning away (relatively speaking) from the top clamping arm. Can you move the pedal further up on the hoop so it rests on that higher/flatter area of the pedal and re-tighten it. It should allow the pedal to sit flat because it is clamping between two flat/parallel surfaces.
 

Mongrel

Silver Member
Even though it looks like there is a large gap between the hoop and the pedal, If you blow the last pic up, the pedal base looks like it is fully seated against the "hoop" stops on the pedal base....
 
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