Just another pencil

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tgsean

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Jan 6, 2014
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Australia
Very nice what material is the blank? Is it timber? Which one? Looks great, suits the one. Like the shape too
 

lwalper

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Mar 16, 2014
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Lancaster, TN
Yes, it's timber. I think it's a piece of Hobhornbeam -- a prevalent species here in middle Tennessee. It's a light colored wood similar to Boxelder and Hackberry, but a bit more dense. Here's a darker shot showing the wood grain a little better.

I'm having trouble finding that particular pencil as I look online. I got a six-pack of them at OfficeDepot a few months back for, as I recall, about $5. The 0.7mm pencils I'm seeing now have the clip molded into the top of pencil.
 

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lwalper

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Mar 16, 2014
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Getting the parts out is easy -- just unscrew the nib and everything slides out the the opposite end.

Measure the length of the mechanism minus how much you want to expose of the advance button. You'll also want to subtract enough length for thread exposure to reattach the nib. That should add up to about 4.25 inches or a smidge longer. Your total blank length will be about 4.5 inches. Use a 1/4 inch drill bit to drill the 4.25 inches. Now comes the tricky part -- drilling the rest of the way through the blank. You'll need a 5/32 inch hole centered on the 1/4 inch hole.

What I did: Used a 1/4 inch aluminum rod (which I had lying about), chucked that up in the lathe (using the pin chuck), and drilled a 5/32 inch hole in the center of the rod. Then I CA glued the same size drill bit in that hole (sharp end out, of course). That gave me a 5/32 drill bit about 7 inches long -- a home-made step drill. You won't find that item in your local big-box store.

Slide the newly made step drill into the partially drilled blank. The rod should be a nice snug fit which will center the 5/32 bit where it needs to be. Use your three-jaw drill chuck in the headstock and you can probably hand drill that remaining 1/4 inch of material through the end of the blank. You may need to adjust this short length on the nib end. After the nib is screwed on that small step is what actually holds the guts of the pencil in place. It needs to be long enough to allow 4-5 threads to be exposed so you can actually screw the nib on.

Now you can turn between centers to your desired profile. You might want to stabilize the ends of the blank with a little thin CA glue to help minimize the problem of splitting the blank from tailstock pressure.

This particular piece actually snapped in two in the polishing process. It was a fairly clean break so I just glued it back together -- can you find the weld? Working without a brass tube leaves a pretty thin and potentially fragile little twig. If you want you can drill to 7mm and use a tube. Same basic process but you'll need to adjust your step drill size appropriately for the ID of the brass.

Use your parting tool to create a shallow groove for the clip. For this clip that required an OD of about .375 inches -- so your blank obviously needs to be a bit larger than that. I think this one was about .420 in that area. You'll also want to protect your blank from being scratched as you slide on the clip. I slipped the clip onto the butt end of an appropriately sized transfer punch, wrapped the blank in a single layer of paper towel, and the clip slipped right down without a mark. Rotating the clip around released the paper from under the clip.

Then just slip it all together, screw on the nib and voila, you've got a customized pencil. :biggrin: Have fun.
 
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SteveJ

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Jul 11, 2012
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Grand Junction, Colorado
Chuck Key actually sells a step drill for converting the Pentel pencils.

The Perfect Collection

Don't know if it would work with the Foray.

I wonder how they compare to the Pentel since the Foray is 1/6 of the price of the Pentel, If they are the same pencil, it makes the cost of the pencil about the cheapest pencil we can make.
 

lwalper

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Mar 16, 2014
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Lancaster, TN
Thanks for the Office Depot link. I may have to get a couple more packs of these and put them aside for future use. It's not likely the ink's going to dry out. The mechanism works well. As far as I've been able to tell they look just like the Pentel. They may be Pentel guts rebranded for a different market. That happens all the time.

The dimensions appear to be identical (or at least close enough). That step drill should work fine. That drill bit looks sweet, but I'd still do most of my drilling with a standard 1/4 inch bit and save that high-dollar step drill for the final punch-through on the nib end.
 
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sbell111

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Jan 16, 2008
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Franklin, TN
The local OD is just a few blocks from my office and I needed a couple things from there anyway, so I wandered over yesterday at lunch. I snagged a couple packs of these pencils while I was there.
 

79spitfire

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Sep 19, 2010
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Nevada
I got some of the Foray pencils and they work the same as the Pentel pencils. It looks to me like the step drill should work just fine. I paid 4.50 a 6 pack or .75c each. I'm going to try one this weekend. What have I got to loose, if it doesn't work out I'll just use the pencils, at that price I won't get emotional about them getting lost or stolen. If it works out I could easily sell these for 5-10 ea and fund more fun stuff.....
 

Dan Masshardt

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Jan 30, 2013
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Mechanicsburg, PA
I got some of the Foray pencils and they work the same as the Pentel pencils. It looks to me like the step drill should work just fine. I paid 4.50 a 6 pack or .75c each. I'm going to try one this weekend. What have I got to loose, if it doesn't work out I'll just use the pencils, at that price I won't get emotional about them getting lost or stolen. If it works out I could easily sell these for 5-10 ea and fund more fun stuff.....

You would sell a custom turned pencil for $5-10??
 

79spitfire

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Sep 19, 2010
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366
Location
Nevada
They have to get past the dragon....

I'll do whatever it takes to make a profit.

This one didn't turn out it's a tad small at the bottom. I did it to prove I could make one.

What do you think it's worth? Foray pencil guts, and a home made PR blank...
 

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lwalper

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Mar 16, 2014
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Lancaster, TN
$25-30 easy. The price of the components is irrelevant. You've got at least a couple hours labor in that, to say nothing of the art. My customers aren't just buying cheap pencils.
 
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