RE: [CAD_CAM_EDM_DRO] Cast resin for a cnc mill design - good ide a?

I didn't have a chance to reply on this previously, but I would second the
comments that a machine sized to give the milling envelope you outlined is a
pretty big machine indeed. My Shoptask has a milling envelope of about 11" X
9" X 3" and it is probably a 500 lbs machine and not the worlds most rigid
mill. What you are describing will run closer to being a full size
Bridgeport machine. Certainly doable, but one heck of a project to get
started with. The only approach that would seem to make it more of a
hobbyist project would be to build a gantry mill, but that may not have the
rigidity you are looking for.

Tim
[Denver, CO]

> Hi Tom:
> I think you have a good basic approach for this project, but I am
> concerned that you have underestimated the size of a milling
> machine with
> the work envelope you have described.
> A capacity of 18x12x8 implies a pretty large machine; all up weight is
> probably going to run several thousand pounds if you want to
> get decent
> rigidity.
>
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