View single post by Herb Kephart
 Posted: Sun Feb 20th, 2011 03:24 am
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Herb Kephart



Joined: Thu Jul 19th, 2007
Location: Glen Mills, Pennsylvania USA
Posts: 5894
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Before that days of computer drafting there were thin plastic circle and ellipse templates that could be used for the drawing part---ask an old draftsman.

To get uniform pieces, rough out as many as needed, but leave oversize on the outside, then tack corners together on the corners with glue. 
Then file the pack, keeping the file at right angles to the pack, held in a vice. 
Parts will be much more uniform this way.


Herb  :old dude:





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