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General Mach Discussion / Re: Lagun and Supermax retrotfit advice sought
« on: July 27, 2011, 07:18:49 AM »
There is a good chance the motors are ok, the ones on my Beaver NC5 were perfect and its mid 80's vintage, the ones on my lathe were like new, its also mid 80's but it had done very little work so that was to be expected.
I replaced the motors on both, lathe because I didnt get the drives with it and mill because the drives whistled and it drove me daft. I picked up AC Servos and drives for them.
It looks like professional type conversions so I think they will almost certainly have ballscrews.
I use AC servos for spindles on my machines, I just keep my eyes open and pick them up when I see them at good prices.
Knee or quill is a difficult one, I personally wouldnt think there would be problems with wear, after all its just another axis like the others, either dovetail or box way, keep it lubed and should be fine.
Problem with the knee though is the weight, either a big servo or some form of assistance i needed, often people use gas shocks. Bridgeport and a few others used air assist. I will at some point servo the knee on my Beaver NC5 but it will only be used for tool length offsets and the quill will likely still be used for day to day machining. I would prefer a bedmill though so if one comes along at the right price I may never do the knee conversion.
I use the SmoothStepper on all my machines although the Bridgeport Rigid Ram is getting redone at the moment and I will be using a different controller on it but afraid I cant say too much about it at the moment.
Heres links to the threads on my lathe, beaver nc5 and bridgeport
http://www.machsupport.com/forum/index.php/topic,1234.0.html
http://www.machsupport.com/forum/index.php/topic,10331.0.html
http://www.machsupport.com/forum/index.php/topic,17580.0.html
I replaced the motors on both, lathe because I didnt get the drives with it and mill because the drives whistled and it drove me daft. I picked up AC Servos and drives for them.
It looks like professional type conversions so I think they will almost certainly have ballscrews.
I use AC servos for spindles on my machines, I just keep my eyes open and pick them up when I see them at good prices.
Knee or quill is a difficult one, I personally wouldnt think there would be problems with wear, after all its just another axis like the others, either dovetail or box way, keep it lubed and should be fine.
Problem with the knee though is the weight, either a big servo or some form of assistance i needed, often people use gas shocks. Bridgeport and a few others used air assist. I will at some point servo the knee on my Beaver NC5 but it will only be used for tool length offsets and the quill will likely still be used for day to day machining. I would prefer a bedmill though so if one comes along at the right price I may never do the knee conversion.
I use the SmoothStepper on all my machines although the Bridgeport Rigid Ram is getting redone at the moment and I will be using a different controller on it but afraid I cant say too much about it at the moment.
Heres links to the threads on my lathe, beaver nc5 and bridgeport
http://www.machsupport.com/forum/index.php/topic,1234.0.html
http://www.machsupport.com/forum/index.php/topic,10331.0.html
http://www.machsupport.com/forum/index.php/topic,17580.0.html