PM25MV-X axis power feed option?

StanR

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Hi folks

Just thinkin'- just wondering- as a machining type does at times- it it would be possible to convert a "normal" power feed unit to work on this machine?
I know it is "too long" to mount as-is; the mill would have to be moved up on risers above the chip tray to get full motion. I am not talking about a machine that is mounted directly to a bench.
As far as I can tell, the power feed pinion would have to be replaced, and a gear cut to mount on the table shaft to apply the drive.
For me, the factory horizontal mounted power feeds are unrealistically costly, and the "standard" power feed is "un-costly" enough to be tempting enough to consider this.
I am sure that there may be at least one on this forum that has a Servo-wanna-be that has died; I would be quite appreciative if folks would chime in on this project that threatens to consume my attention.

Please let me know what you all think!

Cheers!

StanR
 
Could you expand a little bit more about what you mean by "normal" and "factory" power feeds?

I am not sure how a normal one would differ from a factory one.
 
Hi Stan,

Do you mean something like this ?
Mill-Table-drive.jpg
 
So StanR, now you've got me a thinking and a wondering, as us machining types tend to do every once in a while. ;)

I've got the horizontal power feed on my PM30MV, and it appears to just be a vertical power feed modified to be a horizontally mounted, I imagine the extra brackets account for the price difference.

So in my pondering, it occurs to me that the vertical power feeds must already have the necessary parts to mount to the mill table vertically. The only thing I can think might affect the mounting would be the size of the mill table X axis screw shaft. Perhaps someone who has the vertical mounted power feed will chime in with some thoughts.

Steve
 
Could you expand a little bit more about what you mean by "normal" and "factory" power feeds?

I am not sure how a normal one would differ from a factory one.


Don't know if I know the difference either- must have been posted before proof reading. Par for the course!
I should have just said the horizontally-mounted version, the "factory" would be the Bridgeport type mount. Clear as coolant?

Stan
 
So StanR, now you've got me a thinking and a wondering, as us machining types tend to do every once in a while. ;)

I've got the horizontal power feed on my PM30MV, and it appears to just be a vertical power feed modified to be a horizontally mounted, I imagine the extra brackets account for the price difference.

So in my pondering, it occurs to me that the vertical power feeds must already have the necessary parts to mount to the mill table vertically. The only thing I can think might affect the mounting would be the size of the mill table X axis screw shaft. Perhaps someone who has the vertical mounted power feed will chime in with some thoughts.

Steve


So.....you are saying the added parts = ~$150?!?

Perhaps this is why I am asking in the first place! :)

So the z axis shaft may need a sleeve, key and keyway milled in it, along with raising the base to clear the gearbox? I would rather have nothing above the level of the table bed anyway. If the "adapter" plate could be used, it would probably need modification.
My PM25MV is at an inconvenient height for me as it is- just too low with the stock base. One may have to carve away a bit of the chip tray to have full x motion. I need to go after the chip tray anyway as it has no provision for a drain for any coolant.
What I would need to know from other owners that are using the "vertically mounted" power feeds- what lead screw diameters are on the machines with power feeds?

Cheers

Stan
 
Hi Stan,

Find a picture of the one you want ! And post it.
 
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