Re: DRO linear scales discussion

As Doug Fortune pointed out to me, and some others as well,
the real key once a reasonable resolution is reached in a
film output scale, is having a HEDS that will match your
particular scale proportion/resolution (and I would add
a means of mounting the film scale with some sort of backing
which makes it "rigid enough" to read reliably) . So since no
question is too stupid to ask here, can that be done ....
I mean fabricating a HEDS unit to some exact tolerance or
altering an existing one in some way ... without buying my
own silicon fabrication facilities which would be just outside
the budget (as I so laughingly call it) for this hobby.

WHAT WE'RE AFTER HERE IS DIRT CHEAP DRO'S WITH 0.0005
READABILTY ... (just to keep the goal in mind).

I define dirt cheap as 3 axis for a Bridgeport size machine
for under $500 (including a skanky ol' PC to run the software).

Hey this group is called CAD_CAM_EDM_DRO and although I see
a lot of CAD_CAM I don't see a lot on EDM_DRO so I'm just
stirring the mix here a bit. :-)

Ken Jenkins
kjenkins@...