Re: type of mill table slides? pcb etcher ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bill Davis" <wdavis@...> wrote:

>
> Thanks Dave, for the reply, I was planning to mill and drill circuit

boards

> so I may have to shell out the bucks for real linear slides. I was just
> curious as to what I was seeing in those pictures. Maybe Alan might

notice

> this thread and respond.
> bill

Well, you can cheat and get the savings if your machine is to etch pcb's.

There is not great pressure on the machine in the laterial forces.
There can be on the perpendicular if you use a screw for the drill. a
solenoid will hold a constant force while a screw exerts force that
changes with work resistance.

If you use one rod of silver steel (drill rod in the US) and some
bushings, that will hold the axis tight in all three moments of interia.

The other half of the axis can be any drawer slide as it only needs
to hold the axis from moving.

look at the T-Tech and LPKF machines that use a foot to hold the
cutter off the work surface.

Dave