I have been building my own V-drums to go with the TD10 that I just bought. I built them just like the Roland PD-120: A wooden shell, mesh head and a sheet metal bridge across the middle. There's one piezo mounted a platform in the center of the bridge with the foam cone on top, and another piezo glued directly to the bridge, close to the drum shell.
Thankfully, when I plugged it into the snare input on the module, it worked as expected. I get the snare sound when I play the head, and I get the rim shot sound when I strike the rim. (I isolated the center piezo from the bridge a little, so it's easier to get a pure rim trigger than with the PD-120.) Anyway, I tried the other inputs and found that I can trigger the rim sounds on all the other inputs except for Tom 3 and Tom 4.
I've read a lot of posts talking about how the Snare input is the only one that is truly piezo-piezo, while the rest are piezo-FSR. This does not seem to be the case. Obviously, there is some FSR circuitry incorporated to get the choking capability, but I have built all my drums to be dual-piezo (for interchangability) and I now have rim-shot capability on Tom 1 and Tom 2.
(I built 5 dual-piezo toms, so, utilizing another input, I can get 2 sounds out of "Tom 5," as well.)
Maybe I've been misunderstanding a lot of what I've been reading, but it seems like simply wiring in a bridge-mounted piezo to one's PD-100 (or replacing them with PD-120s) would give one the ability to trigger rim sounds on Tom 1 and Tom 2.
The implications are also interesting for people like me who are going the acoustic cymbal route and have all those cymbal inputs to play with.
Thanks in advance for your feedback,
Jason
Thankfully, when I plugged it into the snare input on the module, it worked as expected. I get the snare sound when I play the head, and I get the rim shot sound when I strike the rim. (I isolated the center piezo from the bridge a little, so it's easier to get a pure rim trigger than with the PD-120.) Anyway, I tried the other inputs and found that I can trigger the rim sounds on all the other inputs except for Tom 3 and Tom 4.
I've read a lot of posts talking about how the Snare input is the only one that is truly piezo-piezo, while the rest are piezo-FSR. This does not seem to be the case. Obviously, there is some FSR circuitry incorporated to get the choking capability, but I have built all my drums to be dual-piezo (for interchangability) and I now have rim-shot capability on Tom 1 and Tom 2.
(I built 5 dual-piezo toms, so, utilizing another input, I can get 2 sounds out of "Tom 5," as well.)
Maybe I've been misunderstanding a lot of what I've been reading, but it seems like simply wiring in a bridge-mounted piezo to one's PD-100 (or replacing them with PD-120s) would give one the ability to trigger rim sounds on Tom 1 and Tom 2.
The implications are also interesting for people like me who are going the acoustic cymbal route and have all those cymbal inputs to play with.
Thanks in advance for your feedback,
Jason
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