CAD_CAM_EDM_DRO at Yahoo! Groups

Re: Vacuum pump for vacuum chuck?

Wayne Weedon — Fri, 04 Jul 2008 17:26:12 GMT

... I also use an Edwards (2 stage) pump for my vacformer . I don't use a secondary pump though but do use a vac tank of about 40 litres. That little pump

Re: Vacuum pump for vacuum chuck?

Chris Horne — Fri, 04 Jul 2008 16:36:02 GMT

... Decker, Nash, ... Seems to ... Edwards Speedivac I have two, one in use and one as a spare, both quite old 240V single-stage, belt drive, sliding vane

Re: Vacuum pump for vacuum chuck?

Chuck Merja — Fri, 04 Jul 2008 12:36:01 GMT

... is there another style of pump that would work better. ... vacuum pump from eBay, linked to a cheap bagless vaccum cleaner with a built in speed control.

Re: Vacuum pump for vacuum chuck?

Chris Horne — Fri, 04 Jul 2008 11:24:58 GMT

... is there another style of pump that would work better. ... I have a variety of old machines of various types + some home built machines that require

Re: Mill recommendations needed for new CNC Project

Michael Fagan — Fri, 04 Jul 2008 06:28:48 GMT

One of my friends has a Kent mill with an Accurite MillPWR conversion with a nearly identical factory quick change system installed. Basically each toolholder

Re: Mill recommendations needed for new CNC Project

Ron Ginger — Thu, 03 Jul 2008 12:37:13 GMT

... I converted a Jet knee mill and made the table the Z axis. I think it is great. For many operation I like having the quill free to operate by hand. When I

Re: Vacuum pump for vacuum chuck?

erich10983@... — Thu, 03 Jul 2008 12:17:24 GMT

If you are machining permeable material like MDF or wood, make sure to put a filter inline before the pump. This can be as simple as a water filter from

Re: Vacuum pump for vacuum chuck?

Chris Brown — Thu, 03 Jul 2008 11:48:51 GMT

The simple answer is yes you can use a refrig pump for a vacumn punp, I've used one on it's own for both vacumn degassing and clamping. The only thing to watch

Re: Vacuum pump for vacuum chuck?

Jack McKie — Thu, 03 Jul 2008 11:27:55 GMT

Main thing with vaccuum pumps is CFM evacuated. ... From: Chuck Merja Subject: RE: [CAD_CAM_EDM_DRO] Vacuum pump for vacuum chuck? To:

Re: Vacuum pump for vacuum chuck?

Chuck Merja — Wed, 02 Jul 2008 23:01:10 GMT

I wonder about this dual pump thought too. Can you use old refrig pump for the "cheap" vacuum pump? Lots of epoxy gluers do so. Chuck ... Maybe both a shop

Re: Mill recommendations needed for new CNC Project

Philip Burman — Wed, 02 Jul 2008 22:00:51 GMT

The VFD (4,500 rpm max spindle speed) is standard on the Tormach. I quess the price included a stand/enclosure with coolant, maybe a 4th axis and probably some

Re: Vacuum pump for vacuum chuck?

Jack McKie — Wed, 02 Jul 2008 19:19:44 GMT

Tim, Maybe both a shop vac and a vaccuum pump. Using check valves it is possible to set up so that the shop vac starts the process and then the pump takes

Re: [CAD_CAM_E DM_DRO] Vacuum pump for vacuum chuck?

jbrennan3@... — Wed, 02 Jul 2008 19:18:15 GMT

You don't need a very high vacuum --here is a simple system for a small wood lathe chuck: http://www.rockler.com/product.cfm?page=17202&cookietest=1 For small

Vacuum pump for vacuum chuck?

timgoldstein — Wed, 02 Jul 2008 18:35:15 GMT

Thinking that for a variety of my projects I need a vacuum chuck. Any suggestions on what type of pump I should be looking at? Do I want a real vacuum pump

Re: Mill recommendations needed for new CNC Project

Jon Elson — Wed, 02 Jul 2008 17:09:48 GMT

... The Bridgeport quill is quite robust, and coaxial in the sense that the entire quill is surrounded by the main head casting. So, wear will be roughly