Re: Questions about mill enclosures..

Hello,

Parts washer pumps (available at HF), and Bilge pumps for boats (at
WestMarine) both work. These are not diaphragm type pumps, and both
are designed for oily environments... The bilge pumps are available
in several sizes, and both 12V and line powered are available.

Be sure to use a screen on the return line, to keep the big pieces
out of the pump.

Hope this helps,

Ballendo

P.S. I've used HF's smallest parts washer as a sort of portable flood
coolant system with my CNC's for awhile now. Works well, and is very
inexpensive. Just have to ad some tubing for the additional distance,
and pay attention to relative heights between the pump and the nozzle-
-the pump isn't designed for a large "head" (the vertical distance
the pump must push the water)

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Matt Shaver <mshaver@e...>
wrote:

> On Tuesday 27 January 2004 07:55, Ian Grimwood wrote:
> > Couple questions for assembled "experts".
> >
> > 1. I'm looking to make an enclosure for my new Sherline 5400CNC
> > machine. I'm favoring Plastic and more specifically acrylic.
>
> I'd use polycarbonate. It's tougher and doesn't scratch as easy.
>
> > 2. Does anyone know of a cheap and efficient coolant system for a
> > sherline.. if the machine is cnc I don't want to have to be

applying the

> > coolant/lubricant. Preferable controllable...
>
> Use a small submersible pump such as the ones used for fish ponds.

Control it

> from the PC via a solid state relay. A windshield washer pump would

work too,

> but needs a 12V supply.
>
> > 3. Any preferred coolants out there? Are some bad for use on a

Sherline?

>
> The Sherline will be OK with regular soluble oil type coolants.

It's the pump

> diaphram you need to worry about with respect to coolant

compatibility. The

> pump will probably work fine with soluble oil, just stay away from
> fluorocarbon bearing fluids like tapping fluids.
>
> Matt