Re: Free Friday, DMD speaker panel service
- From: World Class Pins <hondaruehs@xxxxxxx>
- Date: Sat, 29 Aug 2009 11:59:47 -0700 (PDT)
OK, OK, sorry for the delay. We had a local power outage and in an
Arizona summer that can be deadly. All is well again. First off, thank
you Kim, Chris, Nick and group for the kind words. That makes it all
The buffer speed varies from 1-3 thousand RPM and I was using it
between 1 and maybe almost 2 thousand max because you don't want it to
"grab" the work piece. The pads (see pic) are Meguira's red foam
CUTTING pad with coarse compound, Meguiar's yellow polishing pad with
fine polish, and finally 3M yellow polishing (sheep's wool) bonnet
with Finesse-it super fine compound. After cleaning they get treated
with Plexus. It probably would have been better to get 3M foam pads
but this is what they had at the time and when finishing with a top
quality 3M product it won't make much difference towards the end
Pads and polishes: http://karlzona.smugmug.com/Hobbies/Pinball/Special-pin-techniques-and/3320218_hiMba#633594232_uPNhv
Harbor Freight, Buffer link: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=66615
The sanding started with a worn piece of 1,500 grit wet on the DA
sander (for the bad scratches) followed by the 3M foam 3,000 wet
sanding pad as shown in the first post to this thread.
Just because this is "free" please don't underestimate the time it
takes so don't rush it. The worst of the lot took two hours and the
other two took about an hour each. I like to polish these things on a
piece of PF glass on a piece of wood and I LIGHTLY clap the work piece
down with a block of wood and a C-clamp. I suppose you could tape it
down too. When the plastic gets warm you have to take a break to let
it cool. I found the best way to do this was first polish the inside
of the window briefly and then tape it off so it won't scratch. Flip
it over, clamp it down and do each step three times reversing the
piece for another three at each stage. I washed off the compound with
409 or Fantastic and a small brush. Magically the adhesive retains
it's stickiness although you may have to use a thin double sided tape
or (very carefully) a spray adhesive.
Dang, sorry to write a whole book but hey, you asked!!
Thanks again, GodSpeed! Karl.
On Aug 29, 10:33 am, Chris Hibler <ch...@xxxxxxxxxxx> wrote:
Looks great Karl!.
Come on. Spill the beans. What kind of buffing pad, compound, speed,
etc did you use?
Very nice work.
Chris Hibler - CARGPB #31www.Team-EM.comhttp://webpages.charter.net/chibler/Pinball/index.htm
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