No Glide Bolts

[Roger Jolly]

Hi Ric
           Keep you eye on the material construction of every rail you 
bed.  You will soon learn the subtle differences, hardwood vs 
softwood.  They effect tone, response, and back ground noise.
Roger


At 08:29 AM 11/14/02 +0100, you wrote:
>Thanks Roger.
>
>I hadnt expected the answer to be quite so simple, but this makes perfect 
>sense.
>One runs into the problem of flexing balance rails to some degree all the time
>actually. Thats the question I have had about this idea that glide bolts 
>can/should
>be adjusted higher then minimal contact with the keybed as has been described
>lately.
>
>These two points seem to be at odds with each other wouldnt you say ? I 
>mean if the
>keyframe is "jacked up" as it were, you would increase the tendancy of the 
>balance
>rail to flex thus eh ?
>
>In anycase looks like I have an opportunity to learn something new here. 
>Bedding a
>keyframe without glidebolts.
>
>RicB
>
>
>Roger Jolly wrote:
>
> > Hi Ric,
> >              The note adjacent to the glide bolt, will be very rigid on a
> > forte blow, hence most of the energy gets to the hammer and shank.   Mid
> > distance between the bolts,   the rail will flex a little, therefore there
> > will be a difference in energy transfer.
> >
> > Years ago, the action makers selected very high grade, quarter sawn maple
> > for the rails, so very little bedding was needed after the initial set up.
> >
> > The Heintzman company never used glides for eons.  I have never found one
> > that needed bedding. The actions are quieter, and when set up correctly,
> > are very responsive.
> >
> > Regards Roger
> >
>
>
>
>--
>Richard Brekne
>RPT, N.P.T.F.
>UiB, Bergen, Norway
>mailto:rbrekne@broadpark.no
>http://home.broadpark.no/~rbrekne/ricmain.html
>
>
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