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I know? 7" and 8" mini lathes have seen? spindle hole just over ?" . I can even find larger *Do some mini lathes have smaller spindle hole?* Dave

By the way, I calculated that boring the spindle to 13/16" reduces the MT3 contact from 3" to 2.5", if that should matter to anyone.? Though I don't suspect many people use the spindle taper for

That is a small hole. I can see why you want a bigger hole. The on the chart for a 3" is only 0.63" I just a 5" 4 jaw on my lathe it set up for a 4" chuck.? Need backing plate purchased? one from

Sounds great. Most almost same model of chuck 3 or 4 inch I will miss fun 4 jaw chuck and bars. It more taking on off chucks it time to do right. Dave

True.? People have pushed the 7x lathe quite far.? Consider that the Grizzly and PM 10x22/30 lathes have only a 1" spindle bore.? And I definitely want one of those as well. Mike

The bending force is only applied to the distance between the chuck & adjacent bearing - the spindle between the bearings is not subjected to it. Opening the spindle & chuck bore to 13/16" works fine,

You use 4jaw chuck I have 5" [125mm] has good size hole. It has 1?" 30mm size

You can but Hou have take chuck apart and find out how mush Dave

No, I fully understood what you were asking. I mentioned it as an aside. My apologies. Should have been more clear about that. Doug. Yahoo Mail: Search, Organize, Conquer On Sat, Jun 1, 2024 at 10:16

I never said that I wanted to bore the spindle.? Someone had misread or misunderstood my post.? My question, same as the thread title, was about the 3-jaw chuck.? If I can bore to 3/4" I'll be

hi I took mine out to just shy of the screw threads. Pete

It could take longer with heat wave. My wife and Doctors do not want meb work heat. Whe new lathe last November I wanted to know from Doctor what diet I should to live 20 or 30 years longer. Thinking

What is 13//16? I’d guess about 20mm? Seems a lot of work for marginal gain. Then there are others who complain the mini-lathe is not very stiff. It would seem that boring the spindle even a little

Okay, thanks guys.

I too have collets, but I also purchased a 4 inch 3 jaw from little machine shop that I mostle use. Regards, John Mattis (retired mechanical engineer [email protected]> wrote:

I bored my 3" chuck out to 3/4". I no longer use the chuck very often, as I do most of my work with collets now.? Looks like 13/16" would work, but it looks like you would cut into the heads of the 3

You can bore the 3 inch 3 jaw out to 0/760 diameter so 3/4 inch stock will pass through John Mattis (retired Mechanical engineer) [email protected]> wrote:

Should be able to go out to say 13/16" with a boring bar. Owner of Little Machine Shop used to loan out a 13/16" reamer to ream the spindle bore. Yahoo Mail: Search, Organize, Conquer

I seem to remember some years ago someone had increased the through-bore of the standard 3" 3-jaw chuck, but I can't remember where and didn't find anything in my search.? It may have been

Do have delays in work . Yesterday it was replacing flush valve.? Today is blood and seed for lawn . I hope do try a cut today. The other is health I have stage 4 colan cancer since 2009. FYI I told