Jobeky snare too hot / positional sensing

[MWJT42]

just for the sake of completenes...

The Jobeky trigger signal... 4 spoke trigger setup
the grid is almost invisible
the peak is near to 65 volts

35mm?

[mprinz]

Hmm... I think so, the rim piezo is 35mm already.

[thenewdrummer]

Hmm... I think so, the rim piezo is 35mm already.

I bought a trigger bar from them and the rim was 35 but the head was 27. So you should double check.

[mprinz]

Hi Rob,



now I tried 30k ohms and still got this strange transient, which - I guess - means it's still clipping.
I also have to push the green bar of the pos setting to the right. The marker stays quite long at the right when going from
the center to the edge... but I think that's ok.

I get this transient when hitting near to the center trigger.
What would you say... will the hot spot supression work?

I think, i will take more ohms I wont get a off center trigger any more...
.... I checked the trigger rod... the height fits..
Somehow. I find it a bit strong compared to the Alesis rods.
I guess that's my main problem.

Image: I took that print screen with just the center piezo connected. So, don't be confused looking at the rim transient...

[mprinz]

Naaaah, no way.
Still quite hot, with - whatever - 47k ohms I think.

I will change the piezo, baaaam!

Yap, I lowered the piezo stage.
That far, that doesn't trigger subtle notes... and on heavy strokes...127.


I just wanted to play! I think, I will feedback this to Jobeky.
I have already...actually.
I mean, I wanted to avoid this DIY thing to save time.
Now, I messing around ...
There is also no decoupler below the center piezo...just a sticky pad - I don't know, if a decoupler would also solve that problem.
Damn it! I wonder if that thing would really work on a Roland module.

[thenewdrummer]

Naaaah, no way.
Still quite hot, with - whatever - 47k ohms I think.

I will change the piezo, baaaam!

Yap, I lowered the piezo stage.
That far, that doesn't trigger subtle notes... and on heavy strokes...127.


I just wanted to play! I think, I will feedback this to Jobeky.
I have already...actually.
I mean, I wanted to avoid this DIY thing to save time.
Now, I messing around ...
There is also no decoupler below the center piezo...just a sticky pad - I don't know, if a decoupler would also solve that problem.
Damn it! I wonder if that thing would really work on a Roland module.

I got the same result with my Jobeky trigger bar and now it sitting in it's box. Some others seem to have it working so I don't know if there's combination with the snare and the head.

I got another trigger that I managed to get something (was doing the same thing) but not perfect by tightening the head really hard but I still sometime get spike. Maybe it could help.

I wish the gain could go to -10 on edrumin but I think it's not possible hehe.

[mprinz]

Awww... damn...
No, after one year of diving into that edrum topic, a will rip that thing off and try another cushion and piezo.
To be honest, I think the edge of the shell is not really perfect.
Not at one height. Might not be relevant for my problem or when using for edrums. But I recognized it.
May I flip the trigger...
If the reso side is better. ... No, that won't give other trigger result.
It the monster piezo...
I have here some really cheap ones... should I grab one of these? Or may I order some "good" ones...

[MWJT42]

Awww... damn...
No, after one year of diving into that edrum topic, a will rip that thing off and try another cushion and piezo.
To be honest, I think the edge of the shell is not really perfect.
Not at one height. Might not be relevant for my problem or when using for edrums. But I recognized it.
May I flip the trigger...
If the reso side is better. ... No, that won't give other trigger result.
It the monster piezo...
I have here some really cheap ones... should I grab one of these? Or may I order some "good" ones...

You've reminded me, the Jobeky trigger bar on my kick was all sorts of odd. I swapped out the piezo and also placed a bit of foam underneath it (rather than sat directly on the metal plate) which sorted it out.

[mprinz]

Hi MWJT42,

I swapped the piezo, too.
With a stinky one out of 10 pcs. for 10€ something like that.
I checked the polarity - in actually was swapped...
It's working as good as the Jobeky one... meaning: to hot, as-well.



So, I thing it's really the missing decoupler... isn't it.

But what is that Jobeky guy doing ...
So, what's next... I am thinking am cutting the larger rod in a half and put one half below
the piezo.

20210306_211520_Bildgröße ändern.jpg (397.16 KiB) Viewed 1136 times

20210306_204419_Bildgröße ändern.jpg (497.22 KiB) Viewed 1136 times

20210306_204303_Bildgröße ändern.jpg (746.61 KiB) Viewed 1136 times

[thenewdrummer]

Hi MWJT42,

I swapped the piezo, too.
With a stinky one out of 10 pcs. for 10€ something like that.
I checked the polarity - in actually was swapped...
It's working as good as the Jobeky one... meaning: to hot, as-well.



So, I thing it's really the missing decoupler... isn't it.

But what is that Jobeky guy doing ...
So, what's next... I am thinking am cutting the larger rod in a half and put one half below
the piezo.

20210306_211520_Bildgröße ändern.jpg

20210306_204419_Bildgröße ändern.jpg

20210306_204303_Bildgröße ändern.jpg

The decoupler is there so that the piezo nearest to the hit catch the most of the vibration. It isolates the 2 piezo so one buzz more than the other so the module can make a difference on what was hit between head and rim. But it's not necessary with all modules and with edrumin I don't think it's needed. Some module use the crosstalk between the 2 in their algorithm.
Your piezo will still receive the same amount of hit so it will still be too hot.

Did you tried different head tension and placing the cone at different distances from the head?