An early NC machine.. (still running and running well)

[skunkworks]

Think I will put this here...



(old video.... Still use it. My favorite machine to use.)

 

[benmychree]

I suppose that you would want ear plugs when in the vicinity of that machine, maybe earmuffs would be better. That is what worn hydraulic pumps sound like.

 

[skunkworks]

I suppose that you would want ear plugs when in the vicinity of that machine, maybe earmuffs would be better. That is what worn hydraulic pumps sound like.

Impressive that you can tell by ear what worn hydraulic pumps sound like. How many pumps are running?

 

[sdelivery]

I hear two pumps but one definitely is worn or has a dirty suction strainer

 

[skunkworks]

Tuning the x axis.. Wow - can't believe it was 14 years ago.. make sure you look at the dial.. It isn't .001" per division..

 

[skunkworks]

I hear two pumps but one definitely is worn or has a dirty suction strainer

3 pumps. 2 constant volume. 1 constant pressure. this is high precision cnc equipment. no suction strainer.

 

[benmychree]

Impressive that you can tell by ear what worn hydraulic pumps sound like. How many pumps are running?

I apprenticed in a plant that used a lot of hydraulics, hundreds of horsepower run 24 hours a day a lot of the time, they were rebuilt in our shop, they were vane type pumps, and the cams that the vanes ran on looked like washboards, they made lots of noise when they got to that point, some of the pumps had motors on them in excess of one hundred horsepower; the pipe forming press had a capacity of 125K tons, as I remember, it formed pipe up to .937" wall thickness and 40 ft long.

 

[John Adler MKE]

Rigid tapping or spring loaded holder? Spent my share of time repairing MM180(D control) and MM800(C control). They were popular in MKE.

 

[skunkworks]

Rigid tapping or spring loaded holder? Spent my share of time repairing MM180(D control) and MM800(C control). They were popular in MKE.

Rigid tapping.. When we converted this to linuxcnc - I added a spindle encoder... (the origonal machine control was really basic - obviously because it was designed in the 60's)

This is the 'cheat sheet' for the GE all transistor control...

 

[amorrow]

I'm dying to know more about this machine. How long have you had it? How did you acquire it and how did you move it? Have the ways needed to be re-scraped in the ~60 years since it was built? If you've written about this elsewhere, I'd love to read all about it!