Re: [CAD_CAM_EDM_DRO] 5-Axis help

BR wrote:

> Hahaha! Nothing like good ol' fashion encouragement to brighten up any young
> fellow who inspires to experiment and develop

> >
> > Stop right there! What do you want to make? If you intend to carve parts
> > out of wood, an aluminum-framed machine may do, depending on the precision
> needed.

OK, perhaps this was too harsh. But, there have been so many people on here over
the years planning to make a machine to cut 316 stainless with 1/2" carbide end mills,
and they're going to make it out of unsupported 1/2" Thompson linear bearings and
shaft. And, they're going to have a work envelope of a 4 foot cube, and rapids of
400 IPM, and absolutely KNOW they'll get accuracy of .0001" because the step size
of the motor works out to that resolution.

Having a Bridgeport, and seeing how flexible that 1800 Lb machine is, I just can't
imagine cutting metal with anything less rigid that that.

If Mr. Bellais had been more clear on what type of material he was planning to cut, what
level of accuracy he needed, etc. then I might not have been been so harsh. But, I
think one needs to really define your needs before jumping into a project like this.
The machine he gave a link to is a truly massive machine, and it did NOT look like
it was thrown together out of aluminum extrusions, either!

Jon