Help! Axis d-tuna tuning stability

[Stevie]

Hi all,

I have a d-tuna installed on my Axis. Tuning is fine when the d-tuna is not engaged. However, when the d-tuna is engaged, all the strings' pitch increase slightly. Not sure what is causing the problem. Any ideas would be appreciated.

Thanks,

 

[sanderhermans]

If you have a floating bridge and reduce the tension on 1 string. The other strings will get more tension from the tremelo springs. So a d-tuna will only work with bridge that rests on the body.

 

[Eric O'Reilly]

Axis bridge is flat on the body. The d tuna is a temperamental little device, that works great when its set up correctly, like the factory installed one on my peavey wolfgang works flawlessly.

 

[Firesource]

Check if the trem is resting on the body. If it is not, lower it, so it is. If the trem is floating, the D-Tuna will not work.

 

[Stevie]

Thanks for the responses.

The trem is flat and being an Axis is not floating. Logic would tell me that engaging the trem would release tension on the total trem and therefore if anything the pitch would drop from normal. Not so in this case.

 

[Firesource]

The other strings increase in pitch, because the bridge bends ever so slightly backwards when you engage the D-Tuna and thus increasing the tension on the other strings.

 

[Stevie]

Not quite. The bridge leans forward (like a dive bomb) to engage the d-tuna.

 

[BrickGlass]

The only way I've ever been able to combat the other strings from going a little bit sharp when I engage the D-tuna is to make the springs tighter. It makes doing dive bombs a little harder, but the tuning stays more stable when activating the D-tuna.

 

[Stevie]

That's what I was thinking. I'll give it a go and report back. Thanks.

 

[T- Bone]

I've noticed that my guitar only likes .009's with the D Tuna. Also, just tighten up the spring claw just a touch

 

[Stevie]

Well i tightened the claw on my guitar with 10s whilst tuned 1/2 step down, unfortunately it did not work. I'll try 9s next.