Lessons

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dfurlano

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Oct 8, 2005
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Well every pen I have made so far I have been taught a lesson. Which I guess is good but somewhat painful. So I thought I would share my wisdom (hows that for spin) with everyone and at least feel I making progress. So here goes:

This Cigar pen was a lesson in what happens when you mandrel is not turning true. Although hard to see I had to remount the blanks and true up the mandrel. Lesson #1 - I now use a dial indicator with a magnetic base and check the run out each time I turn a pen.



Attempt at segmenting. Made a simple design and thought that I would make the top finial. Lesson #2 - If you are going to make a wood finial don't forget to consider how the clip will be mounted. I CA'ed the post to the screw that holds the finial which the clip mounts between.



This pencil was made with a resin blank from PSI. Turning resin blanks is a long process that I need to figure out how to shorten. Anyhow I wanted to thin the area where you grip the pencil down. Lesson #3 - When working with a resin consider how translucent the material is before you turn. The grip area suffers from a copper highlight from the brass tube.



Last pencil was this comfort pen without the rubber grip. This was my first shot at a home brew EPR. Had fun making the resin and turning the pen. Lesson #4 - Not sure how I did this but the top of the pencil is not the correct diameter. In fact I think I have the front and rear barrel backwards. The bushing on the comfort grip end is a larger diameter than what I needed and normally you would cut that end off. So I need to take this apart and re-turn the end.



Thats what I got so far. Thanks for looking.
 
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Ron Mc

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Feb 2, 2005
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Dan,
It looks to me like you learned all the same lessons that I learned! Keep up the good work and learn from every pen you make.
 

Mikey

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Nov 3, 2005
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Most look really nice. In fact, even the pen where the copper is visable looks fine bacause of the color of the acrylic.

I wish I only had to measure runout on my chucks with a dial indicator. For some odd reason, my mandrels start out straight when I turn the lathe on, but then start wobbling as soon as I touch the wood with my tools. I have to turn it on and off a bunch of times just to get things straight.
 

ryannmphs

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Sep 24, 2004
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Memphis, TN, USA.
Dan,
They look good. Thanks for posting your "lessons learned"

One thing I do to help the run out is when I get close to the final diameter of the pen. I stop the lathe, loosen the blank on the mandrel and rotate each blank about 90 degrees. Make sure the bushings do not rotate. I then turn until round again (not an issue with some of my mandrels) and repeat the rotation 1 or 2 more times.

Ryan
 
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