Pianotech

  • 1.  Leg Repair

    Posted 06-21-2021 08:46
    Looking for any bright ideas on how to repair a front let on a Samick console.


    Clearly, a lovely repair was done sometime in the past. Focusing on the top of the leg where the break occurred, the other, undamaged, leg (which BTW is VERY secure) is actually about a half-inch taller - the break did not occur at the very top of the let - actually about a half-inch down. So there is the top-most half-inch of leg still very firmly attached to the underside of the keybed. The break surfaces are VERY uneven. The screw hole is stripped.

    I'm thinking remove the screw from the leg in the picture, flatten and square break surface (I have a 12" rotating disk sander with guides), drill hole for maybe 1/2" hardwood dowel into top of leg (centered) and glue in place - Titebond should suffice with a close-fitting dowel. When I go back to piano, flatten break surface (geezzz, with what? maybe super-coarse sandpaper glued to flat wood? chisel first? or maybe JUST chisel? - I'd like to use a belt sander, but this thing is in the living room), drill oversize hole, bond in place with two-step West System epoxy thickened to medium-thick. Then add super thick epoxy to break surfaces and insert leg. Tilt piano back an inch or so to allow leg insertion and then use caster cups blocked on both front legs so that leg and be adjusted straight and to same length as other leg. Keep in mind that after flattening break surfaces, the repaired leg (before installation) will be a tad shorter than the other leg - so there will be a 1/4" (or whatever) length of the leg at the break that will be epoxy fill. Can color epoxy after it hardens. Or I could cut some circular wood inserts to fill that gap - or at least mostly fill the gap - and epoxy those in place.

    I think my plan will produce a very strong repair.

    I could go with the original approach. Install new screw - maybe a larger one, clean & flatten break surfaces, install appropriate thickness wooden circle to fill gap and make both legs same length, glue (if surfaces mate VERY well) or epoxy break and circle filler surfaces. That might be a tad easier.

    I really wonder how to clean/flatten and square break surface on keybed bottom. Remember that it protrudes 1/4" to 1/2" from keybed bottom - that makes it easier to access perhaps, but harder to cut the surface down to a plane parallel with the keybed bottom.

    Maybe there are better ideas. Maybe there are easier as-good repairs. Anyone got one?

    ------------------------------
    Terry Farrell
    Farrell Piano Service, Inc.
    Brandon, Florida
    terry@farrellpiano.com
    813-684-3505
    ------------------------------


  • 2.  RE: Leg Repair

    Registered Piano Technician
    Posted 06-21-2021 09:08
    Hi Terry:
    It appears that the damaged area could be replicated on a lathe, using the good leg as a pattern. You could saw off the damaged part and then attach the remade piece to the lower leg. There's usually not a lot of pressure on the front legs, so a stout dowel could suffice to join them. The remaining leg remnant under the keybed could just be removed with a chisel or whatever. A dowel would also work to reattach the repaired leg, or use the lathe to create a stud that would fit in the hole under the keybed.
    Got lathe?
    Just an idea..
    Paul McCloud
    San Diego


    Terrence Farrell
    Looking for any bright ideas on how to repair a front let on a Samick console.



    Clearly, a lovely repair was done sometime in the past. Focusing on the top of the leg where the break occurred, the other, undamaged, leg (which BTW is VERY secure) is actually about a half-inch taller - the break did not occur at the very top of the let - actually about a half-inch down. So there is the top-most half-inch of leg still very firmly attached to the underside of the keybed. The break surfaces are VERY uneven. The screw hole is stripped.

    I'm thinking remove the screw from the leg in the picture, flatten and square break surface (I have a 12" rotating disk sander with guides), drill hole for maybe 1/2" hardwood dowel into top of leg (centered) and glue in place - Titebond should suffice with a close-fitting dowel. When I go back to piano, flatten break surface (geezzz, with what? maybe super-coarse sandpaper glued to flat wood? chisel first? or maybe JUST chisel? - I'd like to use a belt sander, but this thing is in the living room), drill oversize hole, bond in place with two-step West System epoxy thickened to medium-thick. Then add super thick epoxy to break surfaces and insert leg. Tilt piano back an inch or so to allow leg insertion and then use caster cups blocked on both front legs so that leg and be adjusted straight and to same length as other leg. Keep in mind that after flattening break surfaces, the repaired leg (before installation) will be a tad shorter than the other leg - so there will be a 1/4" (or whatever) length of the leg at the break that will be epoxy fill. Can color epoxy after it hardens. Or I could cut some circular wood inserts to fill that gap - or at least mostly fill the gap - and epoxy those in place.

    I think my plan will produce a very strong repair.

    I could go with the original approach. Install new screw - maybe a larger one, clean & flatten break surfaces, install appropriate thickness wooden circle to fill gap and make both legs same length, glue (if surfaces mate VERY well) or epoxy break and circle filler surfaces. That might be a tad easier.

    I really wonder how to clean/flatten and square break surface on keybed bottom. Remember that it protrudes 1/4" to 1/2" from keybed bottom - that makes it easier to access perhaps, but harder to cut the surface down to a plane parallel with the keybed bottom.

    Maybe there are better ideas. Maybe there are easier as-good repairs. Anyone got one?

    ------------------------------
    Terry Farrell
    Farrell Piano Service, Inc.
    Brandon, Florida
    terry@farrellpiano.com
    813-684-3505





  • 3.  RE: Leg Repair

    Posted 06-21-2021 12:06
    Rather than a dowel, use a machine bolt/lag screw fastener. The machine threded portion could go thru the key bed and be secured with a washer and nut. Color the damaged leg to blend or even paint both tops black (matching).

    ------------------------------
    Regards,

    Jon Page
    mailto:jonpage@comcast.net
    http://www.pianocapecod.com
    ------------------------------



  • 4.  RE: Leg Repair

    Registered Piano Technician
    Posted 06-21-2021 16:30
    Terry, I like Jon's solution, through-bolting it will minimize the stress on the glue joint. Guaranteeing a patch like that is treacherous.
    Are you sure you can't pop off the upper portion that's still on the case? If you can then you can reinforce the joint from the top. Getting those two parts to mate sounds difficult. If you have a good mitre saw with a good blade you might consider that to trim the jagged end of the leg.
    All that said, if the piano isn't too old perhaps you can get a replacement from Samick, they do have a factory in the US. Would save a lot of hassle.

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    Steven Rosenthal
    Honolulu HI
    808-521-7129
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  • 5.  RE: Leg Repair

    Posted 06-21-2021 16:52
    Break the other leg to match whiles you're at it.

    ------------------------------
    Regards,

    Jon Page
    mailto:jonpage@comcast.net
    http://www.pianocapecod.com
    ------------------------------



  • 6.  RE: Leg Repair

    Posted 06-21-2021 17:29
    Jon (and Steve) - Thanks for the input, but that approach won't work in this situation. The leg goes into the bottom of the keybed right at the side edge of the keybed - directly above it is the side of the piano case. That is to say that if I were to drill a hole up through the bottom of the keybed, I could - if I wanted ( don't and I won't) - drill four inches or more deeper as the bit, after passing through the keybed, would then proceed up into the side of the case.

    ------------------------------
    Terry Farrell
    Farrell Piano Service, Inc.
    Brandon, Florida
    terry@farrellpiano.com
    813-684-3505
    ------------------------------



  • 7.  RE: Leg Repair

    Posted 06-21-2021 16:50
    A long machine thread thru the key bed and secured on top should hold it.

    ------------------------------
    Regards,

    Jon Page
    mailto:jonpage@comcast.net
    http://www.pianocapecod.com
    ------------------------------



  • 8.  RE: Leg Repair

    Member
    Posted 06-21-2021 18:54
    Try to get a replacement leg from Samick or even a pair so the finish will match . If you post some pictures of what the underside of the keybed looks like It may be easier to make suggestions. I am thinking you can created a shelf /filler to make up the space between the leg top and keybed after you clean off the previous repair mess. the hole in the keybed that took that screw should be plugged and redrilled or use a bolt and insert setup replacing the screw with a bolt thread on one end that goes into the insert with the screw end going into the leg. I have repaired many legs, lyres and pedal brackets on uprights using inserts . Woodcraft and Fastenal are two good sources for inserts and insert tools.

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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    843-325-4357
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