Oh my, were you close.......... The more like tissue your cloth is, the greater the possibility of combustion. Really. Time to come clean. I used a lot of thin CA on a REALLY loose pinblock once (yes, I've only done it THIS way, once). Note to self: use less CA in the future - less is more. Then, some of the glue very quickly went right through the block and started dripping on the keybed. Note to self: protecting the keybed might be an intelligent step the next time I try and make lake CA on top of a Pinblock. I panicked, grabbed the closest thing that seemed reasonable at the time (key phrase there) and wadded up a kleenex to start dabbing at the drips coming through the block. .............wait for it............. About 5 seconds into this first fiasco, my kleenex burst into flames. Really. Egads, can't have that. Dropped the kleenex onto the keybed and started using the next most reasonably available thing to put out the fire - my tuning hammer. Seemed reasonable at the time. Amazing what your mind can convince you is reasonable when panicked. I once tried to scare away a black bear by "banging" two spoons together - but, I digress. At any rate, careful what medium you choose to do this fix. Glad your story was less exciting than mine, John. William R. Monroe On Thu, Jan 14, 2010 at 3:33 PM, John Formsma <formsma at gmail.com> wrote: > I know this is an old thread, but I had the opportunity to try this > technique today for the first time. It was on two stripped lyre top block > screw holes (for the screws that hold the lyre to the keybed.) > > The reason I tried this was because it was quicker than drill and plug, and > it was a good test. The holes were roughly 5/16" in diameter and about 1 > 1/2" long. The original screws were 14 x 3" (I think I have the diameter > about right, but not 100% sure.). Took a section of "Shop Rag" paper towel > that was about 4" x 4", rolled it up, then twisted it so it could be more > readily forced up into the hole. Saturated the wadded up paper towel with > thin CA (Dryburgh). Then forced it up into the hole, using a piece of metal. > No accelerator. It cured really quickly, as what was sticking out of the > hole had to be cut off with a breakaway knife. > > In my initial skepticism, I assumed this wouldn't work at all on a large > hole like this. But to my surprise, I couldn't get the screw started! Had to > drill it out (smaller bit, then larger bit). It held great -- very tight. Of > course, time will tell if this will work long term. But I feel very > confident this technique would certainly be fine for stripped holes that > don't have to support much of a load. > > One interesting thing was that after the paper towel was drenched with CA, > it started "smoking" -- like what happens when accelerator is used. > > FWIW, > > -- > JF > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100114/f5a826c1/attachment.htm>
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