From: "Dwight K. Elvey" 
To: atm{at}shore.net
Reply-To: "Dwight K. Elvey" 


>From: "Russell Jocoy" 
>
>("atm{at}shore.net")
>
>    How do you keep the pitch from clogging up the teeth in the hack saw???
>No matter what saw I use
>it's no use. I use a long butcher's knife and press down and tilt back and
>forth to channel..
>                                               R.L.J.


Hi
 I just spray water across the lap with a hose while cutting.
I use light pressure and a sharp blade. It only takes a few light strokes.
I usually do this at an angle to get a little wider channel than the blade
would produce.
 The spray of water is the trick that keeps the stuff from
sticking. If you let the pitch sit in one place it sticks so don't let it
sit until it is away from the lap. If you worry about contamination from
your water, you can rinse it in distilled water after.
 I use this method for a mirror class and have rechanneled
a large number of laps without problems. Dwight


>("atm{at}shore.net")
>>
>>Hi
>>  For less than 12 inches, I use a hack saw and
>>a spray of water. One can rechannel a lap in less
>>than 5 minutes this way. No special tools. I do
>>use a saw that has never been used for anything
>>else to keep from contaminating the lap.
>>Dwight
>>
>> >From: "John Murray" 
>>
>> >
>> >Morning All,
>> >    I tried out my pitch lap channel cutter today and the
results were very
>> >good. Pictures of the results can be found by visiting the page in my
>> >signature and the clicking the "Newest Feature" link.
>> >
>> >Cheers
>> >
>> >John Murray
>> >Whyalla
>> >South Australia
>> >Check our web page at http://astronomy.sa86net.com ATM and M-O-M stuff.
>> >
>> >
>> >
>> >
>>
>>
>>
>
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