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Pen mandrel (Read 312 times)
 
Chris Neilan
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Pen mandrel
May 2nd, 2017 at 9:28pm
 
My pen mandrel is getting tired and I need to replace it. Any sugestions for a good durable pen mandrel? I do use a mandrel saver. Morse two taper...
Thanks for ideas!
Chris
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Ken Vaughan
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Re: Pen mandrel
Reply #1 - May 3rd, 2017 at 1:52am
 
Chris

I purchased a 3 foot length of D size drill rod several years ago and use an ER32 collet chuck to drive it.   Mandrel saver works with no threads to mess with.  I think I got the 3 foot piece for about the cost of a machined mandrel.

Never looked back....

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Ronald Black
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Re: Pen mandrel
Reply #2 - May 3rd, 2017 at 8:46am
 
I have several (to many) different mandrels. The one I like best is this: Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register Expensive, but in my opinion well worth it. Cheesy Cheesy
Ron
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Ed Weber
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Re: Pen mandrel
Reply #3 - May 3rd, 2017 at 9:47am
 
Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register
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Steve Kniffen
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Re: Pen mandrel
Reply #4 - May 3rd, 2017 at 5:21pm
 
The latest thing in pen turning seems to be turning between centers instead of using a mandrel.  There are specific bushings made just for this or there are adapters sold so you can continue using your old bushings.  These fit between a dead center in the headstock and a live center (60 deg) in the tailstock.  PSI has a Turning Between Centers Mandrel which has no mandrel bar but a #2 MT on each end to hold your bushings.

The biggest drawback to me seems to be that you can turn only one tube at a time.  If you have a 2 tube pen, you have to turn them separately.  The proponents of this say it's more accurate than a mandrel since the mandrel can bend.  If you use a mandrel saver that shouldn't be a problem.
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Ed Weber
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Re: Pen mandrel
Reply #5 - May 3rd, 2017 at 6:42pm
 
Chris Neilan wrote on May 2nd, 2017 at 9:28pm:
Any sugestions for a good durable pen mandrel?


I can't say Ive seen any that really out shine the others. I just use a standard MT2 mandrel from WoodCraft. ( I also use a collet chuck similar to what Ken described)

Steve Kniffen wrote on May 3rd, 2017 at 5:21pm:
The latest thing in pen turning seems to be turning between centers instead of using a mandrel.


This is not new at all, it's just that now there are more gadgets available to accomplish it.

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Ken Vaughan
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Re: Pen mandrel
Reply #6 - May 3rd, 2017 at 7:03pm
 

Pen mandrels are 0.246 which happens to be the diameter of D sized drill bits and O-1 drill rod can be had in that size. 

The tighter the tolerance and higher the value, the greater the probability that I will be turning between centers. 

I'm with Ed, that there is not much new with TBC pen turning except perhaps, the breadth of acceptance.   



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