On 4/18/2013 7:26 AM, andy pugh wrote: > On 18 April 2013 08:48, Gregg Eshelman <g_ala...@yahoo.com> wrote: >> How are molds for plastic reflectors machined? They have a large number of >> sharp edged corner cubes. > Possibly forged with a pyramidal punch? > Take a look at http://www.nissin-precision.com/english/Rrm.htm
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