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Domed Pin For Handles

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TK Steingass
Posts: 31
Member
Topic starter
 

Gentlemen:

I'm finishing up a new hidden tang design and I believe a domed pin is just the ticket. I've never attempted it before and all I know is I want to have the pin go all the way through the handle rather than inserting partial length domed pins. I plan to final shape the handle and then using a carbide bit, mill the hole in and insert the pre-domed pin. Problem is, the pin isn't spread but is that necessary? All I've ever used is Corby bolts for my full tang knives.

In talking to Mike Williams, MS. he said he gets the handle 90% finished before he drills/domes his pins. I didn't get the chance to discuss it further with him in class. I practiced using a small peen hammer on a 416 stainless pin set in a flat block of wood and found it difficult to keep the hammer off the wood so, I think I went about it the wrong way. I'm a little leery of beating or spreading a pin after all that work went into the handle. Same for using ivory or pearl....... <img src=' http://www.americanbladesmith.com/ipboard/public/style_emoticons//blink.gi f' class='bbc_emoticon' alt=':blink:' />

I was thinking the way to do it would be to cut the pin to the correct length, knurl the length it with a single cut file for glue adherence, lightly bevel and buff the ends then slide it in with super glue. I set my tangs in Acraglas BTW. I have no clue as to how far the domed pin should extend above the handle sides.

Any suggestions or better ways to do it would be appreciated. Any links for WIP you can think of that you all like?

V/R,

TK

"Energy and persistence overcome all obstacles." Ben Franklin

www.steingassknives.com

 
Posted : 07/07/2014 5:55 pm
Posts: 307
Member
 

Take all of this with a grain of salt-I haven't done it yet, but have been researching as I've been planning to try this on some knives I'm working on.

From what I've seen (including Nick Wheeler on another forum), I'm planning on drilling my hole when my handle is still a block. I could be completely wrong, but I just can't figure out a good way to hold and support the handle square to the bit after it's all shaped and rounded. I'm relatively certain I'd end up with a wonky hole... After the handle is glued to the knife, the excess epoxy squeezes out. Wipe that up and use a sacrificial pin that is long. Put some Vaseline on the pin hole on one side and a bit on the end of the pin. Push the pin through and be sure there is some Vaseline on that side, too. After the handle dries, pull out the pin and your hole is still in tact (though I've heard of others who just ream the hole back open with a bit, so that way should work, too).

Once the handle is completely finished, dome one side of the pin and insert into the hole. Measure the pin and cut/grind it so it is chamfered and sticks out about the amount the pin is wide (diameter). Apparently, that is the standard amount for any given pin so it has enough to be domed without leaving too much out: extra "height" above the material is equal to the diameter of the pin stock. You're right about hitting the handle with the hammer, though. Life sucks if you mess up that far into it. From what I understand, a small ball pein hammer with a polished face and a lot of light hits will get you there. If you want to polish the head of the finished pin, put some masking tape on the handle, covering the domed pin, then go around the dome with your fingernail. Pull off the little piece that was covering the domed head and take it to the buffer. The rest of the tape protects the handle and you can buff up the pin.

There are more ways including using a set of modified nail punches to do more directional work and also keeps the hammer from whacking the handle material. I think the "issue" I'll have is making sure I can hold the knife securely with the already domed head on my anvil while I'm beating the pin with a hammer. I could be wrong and maybe it'll be easier that I'm thinking. But....they really look nice in a knife, so I've got to give it a try.... <img src=' http://www.americanbladesmith.com/ipboard/public/style_emoticons//smile.gi f' class='bbc_emoticon' alt=':)' />. I look forward to other tips and hearing how this goes for you.

Jeremy

Jeremy Lindley, Apprentice Smith

 
Posted : 07/07/2014 7:01 pm
TK Steingass
Posts: 31
Member
Topic starter
 

|quoted:

Take all of this with a grain of salt-I haven't done it yet, but have been researching as I've been planning to try this on some knives I'm working on.

From what I've seen (including Nick Wheeler on another forum), I'm planning on drilling my hole when my handle is still a block. I could be completely wrong, but I just can't figure out a good way to hold and support the handle square to the bit after it's all shaped and rounded. I'm relatively certain I'd end up with a wonky hole... After the handle is glued to the knife, the excess epoxy squeezes out. Wipe that up and use a sacrificial pin that is long. Put some Vaseline on the pin hole on one side and a bit on the end of the pin. Push the pin through and be sure there is some Vaseline on that side, too. After the handle dries, pull out the pin and your hole is still in tact (though I've heard of others who just ream the hole back open with a bit, so that way should work, too).

Once the handle is completely finished, dome one side of the pin and insert into the hole. Measure the pin and cut/grind it so it is chamfered and sticks out about the amount the pin is wide (diameter). Apparently, that is the standard amount for any given pin so it has enough to be domed without leaving too much out: extra "height" above the material is equal to the diameter of the pin stock. You're right about hitting the handle with the hammer, though. Life sucks if you mess up that far into it. From what I understand, a small ball pein hammer with a polished face and a lot of light hits will get you there. If you want to polish the head of the finished pin, put some masking tape on the handle, covering the domed pin, then go around the dome with your fingernail. Pull off the little piece that was covering the domed head and take it to the buffer. The rest of the tape protects the handle and you can buff up the pin.

There are more ways including using a set of modified nail punches to do more directional work and also keeps the hammer from whacking the handle material. I think the "issue" I'll have is making sure I can hold the knife securely with the already domed head on my anvil while I'm beating the pin with a hammer. I could be wrong and maybe it'll be easier that I'm thinking. But....they really look nice in a knife, so I've got to give it a try.... <img src=' http://www.americanbladesmith.com/ipboard/public/style_emoticons//smile.gi f' class='bbc_emoticon' alt=':)' />. I look forward to other tips and hearing how this goes for you.

Jeremy

Thanks Jeremy - some good points I haven't thought of.

"Energy and persistence overcome all obstacles." Ben Franklin

www.steingassknives.com

 
Posted : 07/07/2014 7:20 pm
BrionTomberlin
Posts: 1675
Member
 

TK if you go to the ABS youtube channel, Nick Wheeler has an excellent video in two parts on domed pins. Just go to the ABS website and click on gallery in the upper left side, then click on the youtube channel link.

Good luck

Brion

Brion Tomberlin

Anvil Top Custom Knives

ABS Mastersmith

 
Posted : 07/07/2014 7:44 pm
TK Steingass
Posts: 31
Member
Topic starter
 

Thanks Brion - I'll check it out

"Energy and persistence overcome all obstacles." Ben Franklin

www.steingassknives.com

 
Posted : 07/07/2014 8:24 pm
Posts: 233
Member
 

TK, You can easily make a clamping jig for doming the first side of the pin. By clamping a couple of pieces of 2" angle iron in a drill vice with a piece of card stock in between then drilling a hole in between them that is the same size as your pin.

Then after you take the card stock out you will have a clamp that will be just be tight enough to hold your pin stock. But not too tight to deform your pin.

So now you can clamp your pin and dome one side before you put it in. Then carefully dome the other side after you have clipped it to length. It takes less sticking out than you might think. Get it too long and you will have a sharp little edge all the way around on one side and the other side will be flush. Or you will have a pin that slides back and forth in the hole. Super glue helps, but not if it is too long. I use a needle file to take a little more off the top of the pin if I see that it is coming out too long.

 
Posted : 07/07/2014 8:45 pm
TK Steingass
Posts: 31
Member
Topic starter
 

Thanks Jared - goof feedback. I like your clamp idea very much.

"Energy and persistence overcome all obstacles." Ben Franklin

www.steingassknives.com

 
Posted : 08/07/2014 7:23 am
Robert Wright
Posts: 425
Member
 

Watch Nick's videos. You'll be glad you did!

Bob

 
Posted : 08/07/2014 10:42 am
Posts: 20
Member
 

Only thing I can add is this: use your leather punch to cut a small, pin sized hole in the tape and cover your handle in tape (leaving only the pin exposed) before you start peening the pin. That way if you miss a little, you have a better chance of not screwing up your handle. I know one MS who uses a piece of Coke can similarly, and another who uses Gorilla tape. So far for me I've just used my universal blue painter's tape, and it's been pretty good.

Travis Fry
www.travisknives.com

 
Posted : 08/07/2014 7:45 pm
TK Steingass
Posts: 31
Member
Topic starter
 

|quoted:

Only thing I can add is this: use your leather punch to cut a small, pin sized hole in the tape and cover your handle in tape (leaving only the pin exposed) before you start peening the pin. That way if you miss a little, you have a better chance of not screwing up your handle. I know one MS who uses a piece of Coke can similarly, and another who uses Gorilla tape. So far for me I've just used my universal blue painter's tape, and it's been pretty good.

thanks Travis - I'll try the gorilla tape. Appreciate it.

"Energy and persistence overcome all obstacles." Ben Franklin

www.steingassknives.com

 
Posted : 08/07/2014 8:36 pm
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