Don't cut your liners out sperarately.

L6steel

L6steel

Joined
Sep 23, 1999
Messages
5,855
I cut out two sets of liners for a couple liner locks this morning. Instead of screwing the two pieces of ti together and cutting them at the same time, I cut each liner separately, and as usual, I cut as close to the line as possible.
Well, wouldn't ya know the side with the non countersunk holes was just a
tad smaller and I sanded into the countersink to get the liners even. What
a morning topper that was. Killed the whole day for me!
At least now I know to always attach the two pieces of material together
and cut them at the same time and not to cut quite so close to the lines.
It doesn't really hurt to leave a little to grind off!
Just another tip from the looney bin!
 
I hear ya, Brother! Man, it really sucks when that happens, although usually for me I leave way more material than I should and end up wasting too much just to get it right. :o
 
Here's another tip from a genius of metalworking: don't drill or ream holes separately on liners when you need them to be the same on each side. That one mistake killed an almost-perfect folder on my last attempt a few months ago. I drilled my starter hole with the scales clamped, then figured now that the starter is in there, I could open the holes up and ream the holes with them separated. Incorrect!

One more tip, then I'm done for the day: don't run your finger into the side of a 120 grit belt. It cuts.
 
I've done that same thing myself. Now I drill the pivot holes separate and use the pivot itself to hold them together to drill two more number 51 holes in both at the same time and thread both of those holes for 2-56. Then I screw them together for the rest of the holes so they all end up in the same spot.

For me this has worked better than messing with clamps getting in the way. But clamps work also if you can work around them.
 
The easiest way to avoid these small problems is to rough cut your liners a little oversize. Then stick them together with carpet grade double stick tape and then grind them to shape together. Then with them still together you can drill your pivot and backbar screws and not have them move and all the holes will be liner up squarely with each other. Then pull them apart and open up the holes that you need to and tap the others.
 
I use super glue to hold the halves together. When done, I seperate either with a propane torch (but don't get it to hot!!!) or a single sided razor blade. I learned this from friend Johnny Stout.
 
I super glue them together, cut forms,grind to lines,drill all holes, ream, tap and then separate them with a razor. I also use the razor along with acetone to clean any glue residue off with.
Perfect matching shape and holes everytime.
Now if I could just master the rest of it!
One goof can really ruin your day.
( : Jon
 
I also drill/ream/tap my holes with both liners together and it works just fine. However, I do find slight discrepencies after most of the finish work is done when I take the knife apart and then reassemble it.Except for a stop pin it's usually assembled with 2-56 screws.Do you think the addition of some more alignment pins would help this problem, or is there something else to do to avoid resanding the profile again. Thanx, Pat McGroder
 
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