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Finishing It ain't a pen till it's FINISHED!


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Old 09-22-2014, 03:53 PM   #1 (permalink)
 
Join Date: Jul 2014
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Question How to...

Hey all.

I have a problem, and am hoping that someone here has run across it and fixed it at one point or another.

I'm still a mandrel turner (can't afford to replace my stock with TBC bushings).
ANYWAY...My issue is with CA finishes. I'm trying to figure out how to take the blank off the bushings without destroying the end of the CA finish. Essentially when I cut the bushing off the blank, it bubbles the end of the finish and ruins the hard work. Prior to cutting it off, it looks perfect!
I have attached a picture for an example. Any help that you can provide would be much appreciated!
caphoto.jpg
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Old 09-22-2014, 04:01 PM   #2 (permalink)
 
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When I first started making pens and finishing with the bushings on, I would cut through the CA with a box knife at the bushings. Now I finish sand and CA with the delrin (or whatever they are made of) tapered bushings. I'm also more careful of not running too much CA glue over the ends.
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Old 09-22-2014, 04:02 PM   #3 (permalink)
 
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Also, next time that happens, put a little CA glue on the ends and refinish before you assemble.
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Old 09-22-2014, 04:09 PM   #4 (permalink)
 
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its been a while since I turned with a mandrel so i'll pass on that part but I will say that its happened to me more timed then I care to think about. I turn between centers with my stock bushings so theres no need to replace the bushings you have. a dead center will set you back less then you spend on some of those kits. well worth the change over.
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Old 09-22-2014, 04:16 PM   #5 (permalink)
 
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When I did it I put a little johnsons floor wax on just the ends of the wooden blank and they seemed to not stick to the bushings. Just the way I did it, not saying it is the only or even the best way FWIW. Dennis
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Old 09-22-2014, 04:23 PM   #6 (permalink)
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Several already posted ways...but...wax the bushings before you start turning, tap on a hard surface...your choice, use Delrin bushings for finish, they have nothing to do with mandrels.
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Old 09-22-2014, 06:17 PM   #7 (permalink)
 
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+1 on all the above comments. Before I started using delrin bushings, whenever my steel bushings stuck to the blank, I would use a disassembly rod to tap them out. Never had a problem.
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Old 09-22-2014, 06:21 PM   #8 (permalink)
 
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Option 1 : buy the delrin cone bushings with the mandrel hole through.

Option 2 (what I do). Apply ca on centers between centers with no bushings for this stage.
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Old 09-22-2014, 06:25 PM   #9 (permalink)
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My wood blanks looked like that before, I thought is was moisture getting in between the CA and the blank. I stopped wet sanding wood blanks.
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Old 09-22-2014, 07:08 PM   #10 (permalink)
 
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I switched to the cone delrin bushings. You get 4 in a pack and they fit any size tube because they are tapered, and clean up easily by dropping in a jar of acetone.

Another tip, I don't know what kind of wood that is, but when I use oilier woods like rosewood or cocobolo, I always make sure to wipe the blank down real good with denatured alcohol to remove the surface oil. I do this until the rag comes off clean with no oily discoloration. Just make sure to let it dry for a few minutes before adding glue or your glue will turn white from the moisture. It will allow your glue better adhering to the wood and maybe cut down on the potential of the finish lifting.
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