Re: [CAD_CAM_EDM_DRO] 0.0007" Resolution for Z axis, good enough?

John,
I did my mill/drill for less than $200 for all THREE axis and that included
a used computer/monitor!!!

The biggest cost will be the encoders; however if you can find an old
deskjet printer, you can get a 360 lPI strip and encoder. Realize this will
be a max of about 10" long; but that will be good for the Y and Z axis.
This would leave you having to get only the X axis encoder at a higher price.

360 LPI in quadrature will give you 1/ (360*4) or a resolution of 0.00069"
See my tag line for info on how I did it.

At 05:15 PM 10/30/02 -0800, you wrote:

>I'm trying to convert my mill/drill to DRO on the cheap (being a college
>kid and not having much cash to spare), and right now I've got the option
>of doing it with 0.0004" resolution on all three axis for $350 or 0.0004"
>on X and Y and 0.0007" on the Z for $300. Is the higher resolution on the
>Z axis really critical for general machining? I'm new to machining, so I
>thought I would ask everyone on the list for input and thoughts.
>
>John

Bubba

OLDER THAN DIRT
Country Bubba
(Actually the inventor of Country and Bubba)

axtein@...
LaGrange, GA

http://ns1.dicomm.net/~axtein/dro


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