Re: [CAD_CAM_EDM_DRO] Re: 5-Axis help

isaiah_bellais wrote:

> No. I did not take your comments as being harsh at all. I respect
> honesty. As for the type of material being milled, I have no plans on
> milling any metal. My work will mostly be done in clay, styrofoam,
> and occasionally plastic and wood (i know plastic and wood may be
> pushing it).

That helps to make it doable.

> I would imagine that the aluminum frame should handle
> this although I would like it as accurate as possible...of course.

Well, that's not a definition. Do you need accuracy of .001" over the whole
envelope, or .01", or even .1"? The problem is that even massive aluminum
beams just a few feet long will have a sag in the middle. A 3-foot beam may
have a sag of .01" unless it is enormous, and aluminum is pretty expensive.
Aluminum also is one of the most non-lubricating metals around, in other
words, it makes a HORRIBLE slideway. So, the sliding elements need to
be made of something else.

Jon