Jp6 trems Knife Egde.

[shep]

Hey,
The other day i was cleaning everything on my Jp6 with the strings off and i pulled the trem out and noticed the two point's which the trem rests on (the knife edge's ) are Absolutely Shot!

The chrome is pealing away and you can see what looks like a copper colored metal under the pealed chrome and then a die cast material under that!!

Is this normal???

 

[TheBassGuy]

Shep, I'm not exactly sure if this is normal. Have you contacted Customer support? There the best!

 

[Octavarius]

I had a similar thing with my JP about six months ago. I contacted customer service immediately by email with some photos attached and they were very quick to reply that after a good deal of trem usage that is completely normal, but if it caused any issues to the tuning stability or trem functionality (which it hasn't so far) I could send the guitar in and get it replaced.

I'd just shoot them an email with some photos and ask! They really are the best.

 

[patpark]

i think its natural for the knife edges to develop some wear especially with heavy usage. as long as it doesn't affect the tuning stability you should be good to go.

 

[TNT]

Normal!!

Just look for chips, gouges, pits, etc. . . in the "edge". Then replace it.

 

[GHWelles]

If it stays in tune, who cares . .

 

[MusicManJP6]

I took mine off yesterday to clean underneath the bridge in the routing below it and was surprised at the wear on the knife edges. The surface plating wear is not a big deal, but the edge itself is looking pretty rough on the low E side. I've contacted Customer Service via email...

 

[jbert]

I discovered exactly the same phenomenon with my JP6 about 2 years ago and did a lot of research on this and other forums to find that it is perfectly normal.

As others have said, as long as there are no other issues, it is just a function of how the part wears over time.

jbert

 

[BobMac]

They shoulnt chrome it if its gona do that. should make it out od stainless steel maybe instead

 

[DrGonzo5150]

If it stays in tune, who cares . .

+1

They look fine when fitted and stay in tune... What more could you ask for?
I've taken the bridge of my lukes before and while they looked uber thrashed, they hold tune perfectly!!!
It's not a big deal by any stretch of the imagination.

Haha you don't pull apart a motor a say "hmmm thing thing looks funny on it's own"
When it's all together it's greased lightning baby!!!

 

[dream]

Wow I have seen some pics of those trems and think its unacceptable.
I have 25 year old guitars and the trems show hardly any wear at all. I have a JP7. Just got it. Hope mine doesn't go the same way.

 

[Jimmyb]

Wow I have seen some pics of those trems and think its unacceptable.
I have 25 year old guitars and the trems show hardly any wear at all. I have a JP7. Just got it. Hope mine doesn't go the same way.

If you have metal rubbing against metal, it's going to wear. It's compounded by the knife edge design, as the forces are concentrated into a smaller area.

 

[dream]

Jp6 trems Knife Egde

wow just had a look at my jp7 and it is already wearing! i know metal on metal does wear but not as quick as this man this guitar is only few weeks old! hate to see what it would look like after 10 years! check some of these pics My JP6's knife edges look terrible! See pics... - John Petrucci Forums doesnt look normal to me

 

[Jimmyb]

It will wear and the chrome will crack. It's one of those things. When you have two metals together, the softer one will wear at a greater rate. If the trem was made of a harder material, then the wera would be on the posts, which would be much more of a problem.

The plating will go due to stress on the edge, nothing you can do about that one.

Take a real knife and place it on a block of harder metal. Then put 100lbs on the knife and watch what happens....

 

[dream]

Jp6 trems Knife Egde

yeah but shouldnt start doing it after few weeks i have a 1990 ibanez universe and it hardly has any wear even after all those years of vai whammy abuse!

 

[BobMac]

yeah but shouldnt start doing it after few weeks i have a 1990 ibanez universe and it hardly has any wear even after all those years of vai whammy abuse!

Is that trem plated??

I think as the whole trem is dipped when being plated they should cover the edge and leave it without plating. This way you wont get this horrible appearence.

 

[dream]

Jp6 trems Knife Egde

dont know if its plated its cosmo finish what ever that is and there hardly any wear at all on the trem but i also have a kramer with chrome floyed rose and there is no sign of wear or chrome coming off even on the knife edges

 

[bkrumme]

None of my 3 JP guitars have as bad of wear as those pics. I can think of a few things:

1. You've been using the trem a LOT. Like abnormally.
2. You adjusted the trem height with the strings tuned to pitch which "dug in" to the knife edges.
3. You got a poorly plated trem. This happens from time to time.

I think any way you go Customer Service will help you out.

 

[MusicManJP6]

check some of these pics My JP6's knife edges look terrible! See pics... - John Petrucci Forums doesnt look normal to me

That is my bridge and pics I posted on the JP forums (obviously). I wanted to see if it was normal or not. Doesn't look normal IMO.

None of my 3 JP guitars have as bad of wear as those pics. I can think of a few things:

1. You've been using the trem a LOT. Like abnormally.
2. You adjusted the trem height with the strings tuned to pitch which "dug in" to the knife edges.
3. You got a poorly plated trem. This happens from time to time.

I think any way you go Customer Service will help you out.

1. Nope! I am not a huge trem user - mostly for vibrato. No abnormal use whatsoever.
2. I did this a few times when I first got it to fine tune the setup - but after it was set I didn't touch it.
3. This seems to be the most logical answer. We'll see what Dan says!

 

[BigMESA]

I'm afraid to look at my JP6's now...especially my BFR....