Pentel P207 in cross-cut zebrawood

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BHuij

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This zebrawood was recently on clearance from Woodturningz and I picked up 8 blanks for a really good price. I ended up roughing it with my bowl gouge and doing most of the final shaping with a razor sharp skew because the endgrain wanted to tear so badly with my normal approach to spindle turning. But I can't argue with the results! Chatoyance off the charts, and the figure really shines when cut with this grain orientation.

I posted this over on the mechanical pencils subreddit and accidentally generated some interest for commission work. Seems I'm not the only person who likes my P20x pencil mechanisms in a housing that looks nicer than injection molded plastic, and has a bit more meat to the diameter.

Someone there suggested I make a video showing the process. I may do just that - it's basically the one documented in the IAP library by Don Ward where he repurposes a slimline pen clip finial to accept the stepped hole for properly retaining the pencil mechanism, and installs it in the wood body using a press fit with regular 7mm brass tubes. The only difference is, after I tried that method the first time and saw how nicely it worked, I knew I would be making lots of them. So I went out and bought a cheap piece of 6.5mm solid brass rod on Amazon, and cut it into ~1cm pieces with a dremel. Much less expensive than cannibalizing slimline kits for the press fit plug at the tip of the body :)

 
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You're not kidding about the chatoyance, holy smokes.
Yeah I suspect it has something to do with the grain orientation. I ran it at high RPMs and took light cuts with the skew to make sure I was getting a really clean surface where there was end grain, and the chatoyance was extremely visible even on bare wood with no sanding. Just great wood, I think.
 
Yeah I suspect it has something to do with the grain orientation. I ran it at high RPMs and took light cuts with the skew to make sure I was getting a really clean surface where there was end grain, and the chatoyance was extremely visible even on bare wood with no sanding. Just great wood, I think.

Oh for sure. It's fun when you turn something and find that little "extra" in there
 
Brilliant idea. I'd love to see the video. I'm not sure how you use the brass rod. I've made some with the step drill bit and it's worked out nicely. The only problem is to make the fit to the nib I've gone too thin and lost strength resulting in the wood breaking off. I see yours is proud a bit and I think that would be stronger.
 
Brilliant idea. I'd love to see the video. I'm not sure how you use the brass rod. I've made some with the step drill bit and it's worked out nicely. The only problem is to make the fit to the nib I've gone too thin and lost strength resulting in the wood breaking off. I see yours is proud a bit and I think that would be stronger.

Yeah it seems like there are (at least) two general approaches to doing the Pentel conversions. Some people use a step drill and don't go all the way through the wood with the larger diameter hole. This creates the necessary step for the mechanism to retain and function properly in the barrel directly in the wood.

The method I'm using is different - it uses standard 7mm tubes like you'd find on a slimline. The step drilling is done in a short piece of brass that is turned down to press fit into the brass tube. The original guide I read repurposed a slimline clip finial to provide that small piece of brass. I use inexpensive brass bar stock since it's more economical if you're going to do more than about two pencils.

Because I'm beholden to the brass tube in the pencil body, I can only go so thin without cutting through the wood and exposing the brass underneath. Ask me how many times I've gotten bit trying to push the limits on that ;) I suspect with the "make steps directly in the wood" method, you could use an inner diameter smaller than 7mm and probably get a smoother transition from the wood body to the nib. But I've never tried that method, so I can't say for sure. Part of the appeal of turning a new body for me is that I can get the grip section thicker. The plastic Pentel bodies are ridiculously thin and really uncomfortable for my large hands. If the cost of that is a noticeable step, so be it ;)

If and when I make a video to demonstrate the method I'm using, I'll post it here.

I also found some people who were interested in potentially doing a similar conversion like this for the Pentel Orenz line. They're pretty similar to the P200 line, but have some fancy mechanical shenanigans going on that slowly retract the metal sleeve over the protruding lead as you write, so you don't have to click more lead out as often. May need to involve a bit of 3D printing to get that to function properly inside a wooden body. We'll see if I can figure it out haha.
 
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