Re: [CAD_CAM_EDM_DRO] Bridgeport way wear,lubrication fix

Hi Ron;

While it is true the metering valves can get plugged up removing them
may not be a good idea unless you can generate significant volume of
Oil. By having the metering restrictors in place you assure that each
lubrication point sees the same pressure.

In a nut shell with the restrictors removed you have two potential
problems. One is excessive lube use. The other is the possible
starvation of lubrication points farther from the pump. Usually it is
better to change the restrictor size and add more lubrication points.

Generally lack of lubrication is a real concern on CNC equipment, there
is no doubt there. It may be beneficial to have automatic
lubrication.

Dave

On Thu, 2005-02-10 at 06:26 -0800, R Rogers wrote:
> Way wear is a concern with continuous duty machines especially under CNC control. They just move more. On my B'ports, the amount of lubrication from the Bijur oiler did not seem sufficient. As I've noticed with many B'ports over the years. There is a manifold under the saddle that has filters and metering valves, usually eight of them. And three more located on the knee. The look like a small fitting for the plastic tubing. I took all mine out and drilled straight thru them in the lathe. I'm not sure if this is the proper thing to do. But, my machines get plenty of way lube now. I'd rather have too much than not enough. The metering valve/filters become restricted over time. I think the idea was to pull the lubrication lever and it kept the oil weeping all day. When a way is dry, I want oil and plenty of it there immediately.
>
> Ron
>
> Polaraligned <polaraligned@...> wrote:
>
>
> With all the talk about anti-backlash ball screws, and ground vs.
> rolled leadscrews, Does anyone have problems with way wear when
> CNC'ing? After all, most of these machines are 30+ years old and
> have been used almost daily by some machinist making a living.
>
>
> Scott
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