Schrade switchblade celluloid - repair, remold, or replace with a different material

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edge213
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by edge213 » Wed Jul 17, 2019 7:22 pm

I'm really looking forward to seeing how this turns out.
David
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Wed Jul 17, 2019 7:24 pm

Will do... whatever the outcome ::facepalm::
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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rexstubbins
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by rexstubbins » Sat Jul 20, 2019 4:38 am

Hey Bforse. Not to rain on your parade but I've done a few rehandles with pre dyed handles. If they are smooth then when you jig them they are quite light in the jigged ruts. You may want to get some dye to fill the ruts. Looking forward to the Aftas pictures.
Doug

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Sun Jul 21, 2019 4:53 am

Thanks rexstubbins for the heads up. I appreciate it.
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Mon Jul 22, 2019 4:18 pm

So, since I’ve been waiting for my bone to come in, I decided to fix something else. The original celluloid was torn buy the button, and I couldn’t leave it like that.
Before:
E2B9FE0F-EAE5-43D2-8838-F40C495D460A.jpeg
After:
Attachments
3E5F0FD1-F2AA-4E36-A823-A2C686C5D95C.jpeg
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

edge213
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by edge213 » Mon Jul 22, 2019 4:20 pm

BFORSE wrote:So, since I’ve been waiting for my bone to come in, I decided to fix something else. The original celluloid was torn buy the button, and I couldn’t leave it like that.
Before:E2B9FE0F-EAE5-43D2-8838-F40C495D460A.jpeg

After:
How did you make this repair?
David
"Glowing like the metal on the edge of a knife" Meat Loaf

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Mon Jul 22, 2019 5:07 pm

This is a “replace” fix. Searching online for celluloid with the proper thickness and pattern was a virtual bust. :(
Then there was the problem of forming that celluloid to the correct contour of the shell. It seemed like a hopeless case, especially the amount of effort for such an inexpensive knife; so finding a willing donor was the only option I had left. A perfect donor was found that had his tip snapped off, and fairly decent celluloid. Having some experience with shelled knife repair, I knew I had to be very careful when bending the tabs. The most nerve racking part was removing the celluloid. I started with the donor knife first just in case I tore the celluloid. I used a blow dryer on the lowest setting to help make it a little more flexible; take some of the brittleness out. Then I carefully, slowly, started to push the celluloid tabs on one side off the shell. Once that was accomplished, I removed all the celluloid from both knives so I wouldn’t have a mixed batch on my knife. Then I cut the tabs off of the original celluloid that had the tear, placed it on top of my donor piece, lined up the contours, taped them together and used the old celluloid holes as a template for cutting new holes in the donor piece. I used a Dremel with a very small engraver bit, and cut the holes out. Then I used a tapered sanding bit to fine tune my cuts. All cutting was done with the dremel on the lowest setting and without any force to minimize friction that could melt the celluloid.
Attachments
029C4990-844E-402E-8CF3-202F47F75816.jpeg
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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orvet
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by orvet » Mon Jul 22, 2019 5:56 pm

Excellent job, and nice detailed tutorial! Very impressive!
If you have opportunity to pick up a Foredom, which is a rotary flex shaft tool, I'm certain you won't regret it if you do any amount of work with a Dremel at all. The Foredom can work at very low speeds and has lots of torque. Usually the Dremel needs extremely high speeds to be effective, the Foredom is the opposite; low speed, high torque.
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Mon Jul 22, 2019 6:10 pm

Thanks orvet, I have never even heard of a tool like that. I’ll definitely have to look that up. ::tu::
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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glennbad
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by glennbad » Mon Jul 22, 2019 8:13 pm

That's an interesting fix! You have more patience than I do.

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Mon Jul 22, 2019 8:39 pm

Thanks glennbad, I had to go really slow; partly because I was nervous. I’m sure everyone here has boogered something up at one time or another; and I’ve had my fair share in the past, and even though I have learned from my mistakes, I honesty was shaking on some of the more treacherous parts. ::paranoid::
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

edge213
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by edge213 » Mon Jul 22, 2019 9:15 pm

BFORSE wrote:Thanks glennbad, I had to go really slow; partly because I was nervous. I’m sure everyone here has boogered something up at one time or another; and I’ve had my fair share in the past, and even though I have learned from my mistakes, I honesty was shaking on some of the more treacherous parts. ::paranoid::
Great fix.
David
"Glowing like the metal on the edge of a knife" Meat Loaf

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Mon Jul 22, 2019 9:27 pm

Thanks edge213! I’m really happy with the way it turned out. It also gives me another throwaway knife I can piddle with.
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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bighomer
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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by bighomer » Tue Jul 23, 2019 4:43 pm

WOW, great job. ::tu:: ::tu:: ::tu::

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Re: Schrade switchblade celluloid - repair, remold, or replace with a different material

Post by BFORSE » Tue Jul 23, 2019 9:30 pm

Thanks, bighomer!
St. John Chapter 1
...12 But as many as received him (Jesus), to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God...

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