Modified Production Knives (traditional only)

Another 71 mod. Anyone know how I can clean up the residue from the delrin and give it that factory glossy finish?

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I haven’t done anything with delrin but I’ve had that with acrylic and ivory and progressively finer grits of sand paper take care of it by removing the places that hold the residue. If you still have some with the finer grits using a clean sheet and wiping it off or washing it will fully clean it.
 
I haven’t done anything with delrin but I’ve had that with acrylic and ivory and progressively finer grits of sand paper take care of it by removing the places that hold the residue. If you still have some with the finer grits using a clean sheet and wiping it off or washing it will fully clean it.
I have plenty of finer grits. I’ll give it a go, thanks!
 
Great job on the 71 Joshua! Like Jeff mentioned, I'd try to take it up to at least 600 if not 800 or even 1200 grit then buff with a wheel and white compound.
Thanks Jason! I’ll post some pictures after I try it out.
 
With all due respect to Lansky1, I borrowed his idea for the Ratcliffe knife, and modded my Case persimmon bone HD muskrat. I like the way it turned out, but I think he got a slightly longer blade than I did. I could have possibly gone out a little farther with this one, but not much. I think I can live with it.
His idea was genius. I, like he stated, couldn't see having two clip blades on the same knife. This is a great improvement on that knife.... I cut the majority off, slowly, with a dremel, then shaped it on a water wheel grinder, to keep the steel cool. Then I touched it up on the little belt sander, and broke the edges slightly on a diamond stone.
Here 'tis.... Duke, as usual, was guarding the garage from the rug on the floor....

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With all due respect to Lansky1, I borrowed his idea for the Ratcliffe knife, and modded my Case persimmon bone HD muskrat. I like the way it turned out, but I think he got a slightly longer blade than I did. I could have possibly gone out a little farther with this one, but not much. I think I can live with it.
His idea was genius. I, like he stated, couldn't see having two clip blades on the same knife. This is a great improvement on that knife.... I cut the majority off, slowly, with a dremel, then shaped it on a water wheel grinder, to keep the steel cool. Then I touched it up on the little belt sander, and broke the edges slightly on a diamond stone.
Here 'tis.... Duke, as usual, was guarding the garage from the rug on the floor....

jsfkW0.jpg
jsfTD3.jpg


Hey Hornetguy ... I'd say you hit that Ratcliffe mod just about perfect - nicely done !! It really is a nice & fairly easy mod - i find it to be very functional. Glad somebody else took the plunge !!

Here's one I recently worked up - I'm liking the acrylic Corelon material Case uses ...

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I agree... Case has been coming up with some really interesting acrylics lately. That one looks like something in outer space..:thumbsup:
It's probably just the lighting, but is the modified blade a satin finish? I had thought about trying to dull the mirror polish on this one, but haven't decided yet. I'm not a big fan of mirror polish on much of any kind of tool, whether hammers, knives or guns.
 
I agree... Case has been coming up with some really interesting acrylics lately. That one looks like something in outer space..:thumbsup:
It's probably just the lighting, but is the modified blade a satin finish? I had thought about trying to dull the mirror polish on this one, but haven't decided yet. I'm not a big fan of mirror polish on much of any kind of tool, whether hammers, knives or guns.

Must be the lighting - I picked up an assortment pack of fine abrasive paper on eBay for $12 I think, so I work my way through the grits and get the top edge and blade down to 3000 grit (as there are inevitable scratches along the way of forming the top edge), then onto the buffing wheel. So, to answer your question .... my modded blades are pretty shiny :-)

I did a"mini-carver" wharncliffe mod on a members Case mini-trapper that had the "as-ground" blades with the factory tool marks ... it was actually a bit more challenging as I had to leave the tool marks on it (would have looked silly to have a polished top edge with the as-ground blades) --->

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Must be the lighting - I picked up an assortment pack of fine abrasive paper on eBay for $12 I think, so I work my way through the grits and get the top edge and blade down to 3000 grit (as there are inevitable scratches along the way of forming the top edge), then onto the buffing wheel. So, to answer your question .... my modded blades are pretty shiny :)

I did a"mini-carver" wharncliffe mod on a members Case mini-trapper that had the "as-ground" blades with the factory tool marks ... it was actually a bit more challenging as I had to leave the tool marks on it (would have looked silly to have a polished top edge with the as-ground blades) --->

OAeRqjl.jpg

KCaYH5B.jpg

X2VR61a.jpg
Very nice. I like that one a lot... especially since I've gotten into carving/whittling. The edges (swedges?) on yours are very good. Mine are just free-hand on the diamond stone, as I don't want to run it across the belt sander. Yours look factory slick...
 
Very nice. I like that one a lot... especially since I've gotten into carving/whittling. The edges (swedges?) on yours are very good. Mine are just free-hand on the diamond stone, as I don't want to run it across the belt sander. Yours look factory slick...

Thanks - the mini-trapper clip blade sets up pretty well for the mini-carver stubby wharnie mod - nail nick is in the perfect place !
 
Stayed up late and worked on this one a couple days ago. It was a 77 with bolsters on both ends. I got some ivory and wanted the end grain to be showing so I took the bolsters off the end. I wanted to make sure the back spring pin had more support than just the handle material to avoid cracking so I sanded down the bolster on the side where it would be pushing towards the cutout in the liner too keep the post in place and eliminate the cutout. I also tried spinning rivets instead of just pins so that on the pins the hold the covers to liners there is no outward force on the material to reduce the chance of cracks forming. I’m pretty happy with how it turned out. Edit: I almost forgot I had to shave off about 1/8th from the end since the ivory was a little short.
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The main blade tang or spring seem to have some heat treat issues where they grind together despite my sanding and nearly polishing both when I did both mods. Incidentally I’m looking for a couple cap lifter 15’s and a couple 2 blade clip point 77’s users preferred as I can’t pay secondary prices and would not be selling what I made. It’d be strictly personal use on my part and using multiple GEC knives for a mod becomes prohibitively expensive very quickly. So if you have any of those that need a good home and you’re not looking to turn a profit let me know please. I’d love to give this another go at some point in the near future.
 
Stayed up late and worked on this one a couple days ago. It was a 77 with bolsters on both ends. I got some ivory and wanted the end grain to be showing so I took the bolsters off the end. I wanted to make sure the back spring pin had more support than just the handle material to avoid cracking so I sanded down the bolster on the side where it would be pushing towards the cutout in the liner too keep the post in place and eliminate the cutout. I also tried spinning rivets instead of just pins so that on the pins the hold the covers to liners there is no outward force on the material to reduce the chance of cracks forming. I’m pretty happy with how it turned out. Edit: I almost forgot I had to shave off about 1/8th from the end since the ivory was a little short.
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Man, that's just wonderful. Beautiful knife, showing great craftsmanship.... I bet that will look fabulous with a little age and yellowing on it...
 
Man, that's just wonderful. Beautiful knife, showing great craftsmanship.... I bet that will look fabulous with a little age and yellowing on it...
Thank you, I appreciate it. I think it’ll spend a lot of time in my pocket, it got used pretty regularly already
 
Nice work on that one, the ivory is nice and has some great grain to it!
 
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