Jigged bone question

R

Randy3000

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Jun 3, 2017
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So I've been working heavily on improving my designs. I could draw a perfect knife but had difficulty actually making it. I realized the problem was on paper I had a consistent horizontal line that I could reference off of, but while holding the blade or spring and grinding I had no such reference line. So I drew a line on the spring and it made a massive difference! This is the first slip joint I've made that I feel is well designed. The blade runs parallel to the handle when closed, and all other kinds of issues I've had are simply gone!

So now that I have a good knife, I want to put a good handle on it, and so I dusted off the jigged bone I've been saving for when I finally did a knife right. This is my first time using bone, so im not sure if I'm messing up or this is how it is supposed to be, but while profiling the handle i noticed the dark green bone in the sides has become a reddish color on the edges. Not sure if this is normal, thought I'd ask before i do anymore. I really need this one to come out good!

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The bone is dyed. You have simply ground through the dyed layer. It's fine.
 
Well, what concerns me is the weird contrast of the green and red colors. Should I sand a bit on the sides to match it up?
 
I would round the edges and take the ends down flush with the bolsters.
 
one thing I noticed on jigged bone on a slip joint I made, everything was flush against the liners when it was done,
months later they jigged bone scales seem to have shrunk and now the liners are slightly proud on the spine spring side and opposite on the blade closing side....
is this just part of the deal?
 
If necessary I will remove material from the bottom of jigged bone to get the top close to the same height as the pre -shaped bolsters I have done. I haven't seem a lot of shrinkage and warping on jigged bone but it does happen. Frank
 
I got this bone from Culpeper and co, i have only heard good things about them. I plan on sanding the bolsters down to where the grooves in the bone don't show the edge of the bolster, and then sand the bone down flush.

I pulled the bag the bone came in out of the trash and it says "Amber wormgroove". This strikes me as odd since the exterior is clearly has a dark green look to it. But, I just cut off the ends of the bone (right where I had that temp pin in to shape the scales) and the end is a nice amber color throughout. I don't think I sanded very far before the green was gone. Not sure what to make of this, it's not what i expected but this is my very first time using bone!
 
I just realized I could try sanding the sides of the cut off pieces. I see most jigged bone is darker down in the grooves than on the surface. Just want to make sure if I need to sand the sides down a bit or not. I know bill already answered, and I respect his opinion, but I just want to know if these new revelations change anything.

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In this pic you can see the color all the way through is amber.
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You're fine, it will turn out looking like this. Same bone I use a lot of it. The funky greenish tint is just excess dye. Also the white in the edges is where you got the bone too hot, Go slow and sharp belts. I also preshape my bolster and then work the bone down from the back side to match them, that way you don't loose all the jigging.
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Ok, thanks guys. I used acetone to remove excess dye, and there was a lot, but maybe I need more scrubbing. I'll go slower too on the sander. Can I touch it lightly on the sander and get through the lighter parts without taking off too much material, or am I best to keep it like is?
 
I would just leave it, just be more careful in the future. You start chasing it and likely wind up with no bone left.
Use dawn and a soft brush, but it won't shine till you give it a light buffing with pink no scratch.
 
SBuzek said:
You're fine, it will turn out looking like this. Same bone I use a lot of it. The funky greenish tint is just excess dye. Also the white in the edges is where you got the bone too hot, Go slow and sharp belts. I also preshape my bolster and then work the bone down from the back side to match them, that way you don't loose all the jigging.
2v2u59dqdxAWw5m.jpg
Click to expand...

What did you do to get that curve in the bolster? Or is it a reflection? That's a sharp looking knife, hopefully in a few years I'll be able to compete with something like that!
 
That's just the reflection of my light box:rolleyes:, I make a decent knife but take crappy pictures:)
 
One bad hit with the hammer and I cracked the bone :(. I super glued the bone to the liner. Anyway to get the bone off now? The crack is visible but you can't really feel it. If it's too difficult to remove I'll just keep it and use the neck out of it!
 
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