Moulded Keytops, problems buffing

[John Ross]

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Thanks Terry.
For some reason, I was thinking, you had 2 or 3 buffing wheels mounted on a shaft. Using either different material wheels, or different compound on each.
I guess I shouldn't think so much, using up too much grey stuff, not leaving enough for normal operation. :-)
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
  ----- Original Message ----- 
  From: Terry 
  To: Pianotech 
  Sent: Tuesday, March 08, 2005 8:31 AM
  Subject: Re: Moulded Keytops, problems buffing


  Hi John,

  I use the same arbor that I mount a saw blade on. The hole in the buffing wheels is the same size as the hole in a saw blade (whatever size hole that is). I mount the wheel on there just like I would mount a blade. If I'm standing at the ShopSmith, I push the motor to the far left and push the sliding table to the right. I do not use any type of table at the buffing wheel - I just stand there and run the key along the rotating wheel. I use the integral table to the right to set keys down on, but that is all - also I clamp a couple strips of wood to the edges of the table because the machine vibrates enough to otherwise make the keys walk off the table (DAMHIK). I will send you a picture privately - if anyone else wants one, let me know - email privately.

  Terry Farrell
    ----- Original Message ----- 
    From: John Ross 
    To: Pianotech 
    Sent: Monday, March 07, 2005 7:18 PM
    Subject: Re: Moulded Keytops, problems buffing


    Hi Terry,
    You had previously mentioned an arbour, is this something you assembled, or bought?
    The Shopsmith table is too high, to be used with this, as I am visualizing this. What do you use as a table.
    Would it be possible to send a picture of your setup?
    Thanks,
    John
    John M. Ross
    Windsor, Nova Scotia, Canada
    jrpiano@win.eastlink.ca
      ----- Original Message ----- 
      From: Terry 
      To: Pianotech 
      Sent: Monday, March 07, 2005 7:45 PM
      Subject: Re: Moulded Keytops, problems buffing


      I just buffed a set of plastic keys today on my ShopSmith. I slowed the ShopSmith down to the "jigsaw" setting (almost the slowest setting - a wild guess might be 500 rpm - maybe a bit more). I used an unsewn buffing wheel. I used red rouge on the nastiest scratches and marks - the red rouge is aggressive and leaves a fine scratch pattern. Then I hit them all with white rouge on a similar buffing wheel and they all polished up bright and shiny in just a few seconds for each key.

      Terry Farrell

          On 3/6/05 John Ross wrote:

          >>Joe had mentioned problems buffing.

          I also have problems in this area.

          I had thought on a softer buffing wheel, but have been unable to find a source. The selections available at my suppliers, are limited. 

          Any ideas?

          I had thought on slowing the wheel down. Would that help?

          John M. Ross<<

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