Unusual Problem

S

Suva

Joined
Nov 6, 2007
Messages
12
Hi Guys,

I was hoping someone might be able to solve a problem I am having with the knife I have just finished making.
Basically on completion of my knife ( Frame lock folder) the two thumb studs were sitting perfectly flush against both sides of the handle.
The thumb studs came loose so I took the blade out and used a special thread lock glue to prevent the thumb studs from coming loose. The thumbstuds are tight, straight and flush on the blade. However, now when I re fit the blade only one of the thumb studs is hitting the handle. The thumb stud on the frame lock side is about one millimeter off the frame, so only one of the thumbstuds is actually stopping the blade on opening...
I have since taken the knife apart and re assembled it numerous times. I have checked everything! - I am absolutely bamboozled as to what has gone wrong, and it is really annoying me as it defies logic!
I am hoping someone may have an Idea of what the problem could be.

PS. Is it a safety concern that only one thumbstud is stopping the blade? It still seems very tight ( they are heavy duty studs )

Cheers
Suva
 
prehaps you can post a couple of pics to show us the problem... maybe one open, one closed, a close up of it closed, and an exploded view so we can try to determine the issue.

Jason
 
Could you have reversed (switched) the studs? If so, could that have introduced the difference?
 
The studs are not necessarily bored on center...then when repositioning them they tighten off center to how they were originally. Keep srewing with them until you find the correct positioning, mark them, thread lock them and refasten.
 
Hi Guys,

Thanx for the feed back - I have some links to the pictures, there are quit a few as I am not sure what you guys will be looking for! ( this is only my second Knife! ) I can ensure the studs are straight. I am begining to think that maybe I "assumed" they were flush before and that when the studs came loose it brought it to my attention - My own stupidity seems like the only explanation!!!

I am coming to term with the fact that this is most likely how it will stay.

Should I be concerned about the safety of only one stud stopping the blade? They are tight as hell this time...

Below are the links to the pics anyway

Thanx Guys
Suva

http://www.freeimagehosting.net/image.php?1f32edb3a8.jpg

http://www.freeimagehosting.net/image.php?afa1ff6d23.jpg

http://www.freeimagehosting.net/image.php?b65e27a151.jpg

http://www.freeimagehosting.net/image.php?f1d893de67.jpg

http://www.freeimagehosting.net/image.php?b7c67c5a50.jpg

http://www.freeimagehosting.net/image.php?598304e6a9.jpg

http://www.freeimagehosting.net/image.php?4cd3f0a499.jpg

http://www.freeimagehosting.net/image.php?258af1cfd6.jpg

http://www.freeimagehosting.net/image.php?6f260e9df3.jpg

http://www.freeimagehosting.net/image.php?781120f8c8.jpg

http://www.freeimagehosting.net/image.php?3423fd4de1.jpg

http://www.freeimagehosting.net/image.php?291e80fdd9.jpg
 
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BTW I did tweak with the thumb studs before finally securing them with a thread lock glue. In-fact I used a second set of thumb studs to be sure it wasn't the actual studs.

I am now just not sure if it is secure enough with only one stud stopping the blade? What do you guys think?

Thanx for the help.
Suva
 
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Look at the last picture first....

I think it is in the thumb studs. Try the sugestions noted before you posted the pictures.
 
Take a set of micrometers and tighten them up against one of the studs, if there is a gap between the anvil of the mikes and the opposite side stud, then you know there is a problem with the studs. Any chance the alignment problem is with the scales?
 
reidmfg, I did as you suggested. The studs are the same size. It looks like the problem may well be in the scales. The only issue now is that if carefully remove a millimeter of material on the scales I run the risk of compromising the fit of the lock. Not sure what to do here, I think ill just leave it as it is...

Thanx for all your feed back guys.

Cheers
Suva
 
reidmfg, Mate you are correct... The problem is in the scales,they are about 1mm longer than the frame lock side - How I did not notice this is a whole separate issue and is probably suited better on a different kind of forum!!! ( for idiots! )

I dont think it can be fixed as if I do remove the material from the scales I am sure to compromise the lock - Do you think that the one stud stopping the blade will suffice?

Cheers
Paul
 
Success!

Hi Guys reidmfg was right, it was the scales... ( Still trying to work out how I stuffed that up without noticing! )

Anyway after much deliberation I decided to take the risk and remove the extra 1mm of material from the scales. The studs now sit perfectly flush and the lock has not been compromised ( it actually fits a litter better if anything! )

Just wanted to thank all those that offered help.

Cheers and all the best.
Paul

PS. Still feel free to check out to pics of my folder I posted earlier.
 
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