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269184 Don Schwartz <dks@t...> 2019‑09‑10 Re: Repairing a Krenovian smoother
Kirk et al

It strikes me these approaches may be overkill. I would first consider 
simply drilling the cocobolo out and replacing it with something more 
resistant to rupture - Verawood aka Argentine Lignum Vitae for instance. 
And practice less aggression on setting the wedge. ;-)

As well, I wonder whether it might be possible to redrill the sides and 
install a pin with a larger diameter. Even a small increase in size 
should give a considerable increase in strength.

FWIW
Don


On 2019-09-10 12:07 p.m., Kirk Eppler via OldTools wrote:
> On Tue, Sep 10, 2019, 9:36 AM Gmail  wrote:
>
>> Some years back I built a laminated Krenov style smoother from a block of
>> sycamore, with a cocobolo cross pin. Somewhere along the way I must have
>> been a little too aggressive setting the wedge, and one of the ends of the
>> pin has snapped.
>
> Having never done this before, this is purely a guess.
>
> (My kit has a metal pin, so I would drill through and just replace cocobolo
> entirely.)
>
> But onto a solution which may work.  Instead of spring loading your pin,
> you can cut a groove into one cheek, in the non load bearing direction.
> This will allow you to install it from the blade side, and it will press
> into the solid portion when stressed by the wedge.  You may need to make
> the other side a groove, or just an oval to allow the pin to pivot on its
> way in.
>
> Kirk in Half Moon Bay, CA
>
>
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