RE: Tips for special 20 surgery?
- Subject: RE: Tips for special 20 surgery?
- From: "scorcher" <s_c_o_r_c_h_e_r@xxxxxxx>
- Date: Fri, 12 Sep 2003 16:37:10 -0700
Howard Chandler asks:
> Is it better to replace the old nails vice replacing with
Screws are much more secure, and they facilitate later repairs - I recommend
> If screws what's the best way to go about it?
> What special
> tools will be needed?
A tiny drill just a BIT (no pun intended) larger than the screw...numbered
machinist's bits, if you can get them will give you smaller increments of
size- not too high a speed (drill motor RPM), a drill PRESS is recommended,
but not mandatory, if you're accustomed to (& accurate at) drilling things
Drill both plates & the comb all at the same time, (you might want to leave
most of the nails IN for this step) if you're not using a fixture ("JIG").
Make sure you get ALL the dust / shavings out & de-burr your reedplates AND
COMB before re-assembly.
I like 5/8" #1 Stainless Steel Machine screws & nuts...Longer ones are OK,
too - just trim the length with a little Dremel cut-off wheel.
I never bother with screws at the front of the reedplate (where your mouth
goes) - I slightly arc the front edge of the covers & rely on them to secure
the front edge of the reedplates.
> What about micropore tape and other such comb sealing tricks? Is this
> necessary on plastic combed harps?
The recessed design of S20s / LOs don't require it, but if you really feel
ambitious, have at it!
I guess if you're embossing your reedplates & close-gapping for OBs, you
might want a gasket just to be "sure"...
My $.02 USD
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