On 2016-03-11, Ed Huntress wrote:
On Thu, 10 Mar 2016 19:13:54 -0600, Ignoramus26799
wrote:

On 2016-03-11, Ed Huntress wrote:
On Thu, 10 Mar 2016 18:16:51 -0600, Ignoramus26799
wrote:

I bought this borer just to part it out and scrap. It weighs 28,500
lbs.

However, when I looked at it in person today, with my guy, it was so
unbelievably nice, I hate the thought of scrapping it. It has a DRO
and retaining nut for spindle collets.

So, a thought creeped into my mind, that perhaps I can set it up at my
shop and just use it for all manual milling or drilling. The usual
shop maintenance and repairs and whatever we do.

So, it can do milling, right?

i

Sorry!

http://igor.chudov.com/tmp/huge-jig-borer/


*Which* jig borer?

In general, the bearings in jig borers aren't up to normal milling
loads. The mass of those machines is deceptive. They'll do light
milling, but that's about it.


this is all I care about, 1/2" end mill

Ah, a big ol' Pratt & Whitney. Well, it's a hell of a machine. I'll
bet it will handle 1/2" endmills without breaking a sweat (this is a
second-hand opinion, because I've only seen them in T&D shops and I
never ran one).

That's one hell of a chunk of iron for milling like that, but if you
have the room and you're cozying up to that neat old machine, it
probably will do a neat job of it.

And you can always take in work re-boring stationary steam engines, if
the scrap business slows down. d8-)


Scrap business is actually picking up again after a horrible slump.

i