Re: [ATM] How Much Pitch for 12"?

["Bob May" <rmay@nethere.com>]

It all depends upon how much thickness the pitch is.  You can
spread out a half kilo of pitch to cover aa 12" lap if you don't
do blocks a foot thick.
The silicone mold that somebody sells is a bit thick to my
practices as I consider that the grooves only need to be there,
not a quarter of an inch deep.  In addition, there is no need for
any real thickness for the whole base of the lap and a
1/16" is thick enough for that.  I usually do blocks of about
1/8" when I use a mold and when I do a "Dobson" style lap then
the total thickness is usually under a quarter of an inch
Bob May

rmay at nethere.com
http: slash /nav.to slash bobmay
http: slash /bobmay dot astronomy.net


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