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Mikes Member
Joined: 28 Mar 2007 Posts: 80 Location: Vermont, USA
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Posted: Sat Mar 30, 2013 4:42 pm Post subject: End pin shaping |
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Ok so I've shaped about a dozen end pin and after each one I end up with blisters on both thumbs and pointer fingers from holding onto the pin while turning it in the shaper. I have an end pin vice but the pins just end up spinning during the process. So what are some tips for shaping pins with out the pain?
Thanks much
Mike Spencer |
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Michael Darnton Moderator
Joined: 23 Mar 2007 Posts: 1281 Location: Chicago
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fjodor Member
Joined: 28 Jan 2013 Posts: 60
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Posted: Sat Mar 30, 2013 6:22 pm Post subject: |
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It can help to put a small rubber ring in the bottom of the vice to provide more friction against the end pin and prevent it from spinning. |
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L P Reedy Super Member
Joined: 02 Apr 2009 Posts: 276 Location: Brevard, NC
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Posted: Sat Mar 30, 2013 6:46 pm Post subject: |
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Mikes, which type of end pin holder do you have? I have two, both home made. One is nice looking and holds the pin by direct pressure from a bolt (I think Howard Core sells them) but almost always slips. The other is similar to the one International Violin sells but made of wood. It can be safely tightened enough (with a wrench) to work reliably. The first one can be tightened enough to destroy the end pin but still slip.
I also use the second one to remove stuck end pins. Works almost every time.
Edit: Just tried the rubber idea and it worked. I had tried leather without success, so I now have a choice. |
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fjodor Member
Joined: 28 Jan 2013 Posts: 60
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Posted: Sun Mar 31, 2013 4:30 am Post subject: |
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Glad it worked with the rubber. To avoid confusion; this is the kind of vise I'm talking about.
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Mikes Member
Joined: 28 Mar 2007 Posts: 80 Location: Vermont, USA
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Posted: Sun Mar 31, 2013 8:55 am Post subject: |
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I have the steel split type that squeezes from the side but that brass one looks like a much better design. Sounds like I need a trip to the hardware store to see what kind of rubber washers or O rings might work. I'll try the wetting trick too. Thanks for the ideas. |
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DonLeister Moderator
Joined: 29 Mar 2007 Posts: 383 Location: Richmond, VA
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Posted: Sun Mar 31, 2013 7:46 pm Post subject: |
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I made this which has never failed me. It is modeled after one made by Michael Darnton.
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ctviolin Super Member
Joined: 07 May 2009 Posts: 961 Location: Roswell
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Posted: Sun Mar 31, 2013 7:55 pm Post subject: |
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DonLeister wrote: | I made this which has never failed me. It is modeled after one made by Michael Darnton.
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Cool, thanks for sharing that Don. Very impressively simple.
I believe Michael's brain must hard-wired to think of direct, simple violin related solutions... _________________ Look,
Listen,
Learn. |
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Michael Darnton Moderator
Joined: 23 Mar 2007 Posts: 1281 Location: Chicago
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actonern Super Member
Joined: 15 Aug 2007 Posts: 444
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Posted: Sun Mar 31, 2013 9:06 pm Post subject: |
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Are end pins, like pegs, available in different "guages" so you can start a new instrument with the smallest diameter, leaving wood for the next guy that has to true and re-fit a new one in the future without having to bush the hole?
E |
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Michael Darnton Moderator
Joined: 23 Mar 2007 Posts: 1281 Location: Chicago
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actonern Super Member
Joined: 15 Aug 2007 Posts: 444
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Posted: Sun Mar 31, 2013 9:35 pm Post subject: |
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Thanks Michael:
I guess I'm asking about new construction, where you get to decide how big the hole is going to be... I know that pegs can be had new in at least 3 different guages, where truing them up still has to happen, but a basic shaft diameter can be chosen, narrowest first for a new instrument?
I was curious if that also holds for end pins... whether the maker can buy different shaft diameters, requiring less final "truing" to make them fit a pre-defined hole size?
Best regards,
E |
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Michael Darnton Moderator
Joined: 23 Mar 2007 Posts: 1281 Location: Chicago
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ctviolin Super Member
Joined: 07 May 2009 Posts: 961 Location: Roswell
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Posted: Mon Apr 01, 2013 12:12 am Post subject: |
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Sorry - miss-post. _________________ Look,
Listen,
Learn. |
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DonLeister Moderator
Joined: 29 Mar 2007 Posts: 383 Location: Richmond, VA
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Posted: Mon Apr 01, 2013 9:29 am Post subject: |
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It is curly maple, but soft box elder maple which I have a stash of but am afraid that it is too weak and light for violins.
Being soft though it compresses some around the endpin so be sure that your first endpins are in there straight, you'll want that as you turn it into the shaper. Once it leaves a compression mark in the holder all of your endpins after that will fall into that groove. I hope that makes sense. |
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