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Machining a Morse Taper in the Gingery Lathe Spindle

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PekkaNF:
Looks like a good progress. Very slender boring bar, but then again small end of the MT1 is small. I tried to stepdril and use reamer for one spindle. I rushed the job and cock it up. Then I found one MT1 extension and used it, worked fine.

If you don't feel like drilling trough hole in the spindle there are many ways for taper tool extraction. I'm sure this is all very familiar for you, maybe some entertainment for someone else. Anyway MT1 hole is pretty small and limiting factor as spindle hole for turning bar material.

There is traditional slot for drift (needs a tang, or some planning ahead). End this weakens spindle.

There is a thread at the front of taper for extraction nut.

And the most simple: Thread at the taper tooling. Not ideal for readymade tooling, but pretty simple to add on self made tooling.

appletree:
Providing the drill is long enough for the morse taper, use a bigger drill from the other end, as you are aware drills get longer as they increase in diameter

vtsteam:
Guys, the point of this exercise in a forum thread is to show others how I bore a morse taper in a spindle. If folks would have a little faith in this process we'll get to a result. I'd really like to see some others doing similar simple projects, using their own favorite methods, so this forum has some meat in it and it attracts newcomers, rather than simply expressing doubts during this process, or assuming a lack of understanding of alternative possibilities. Alternatives are great, but demonstrate them in a thread of your own. Then this forum will really come alive again.  :thumbup:

Personally I think this way of fitting a morse taper works perfectly, to me it is the easiest and simplest way to go about it. It requires nothing more than a drill bit, a dead simple homemade boring bar made out of a piece of hardenable rod or even another discarded drill bit, and the part you want to fit. No five figure taper angles to to look up and deal with, no measuring instruments, no step drilling to calculated depths, no delicate expensive Morse taper reamers, no lathe taper attachments, not even angle graduations on a topslide.

My main motivation in showing this kind of thing is to try to help people to realize that they don't need expensive equipment or high precision instruments or complex processes to do precision work. Not that there's anything wrong with those things, but the unconscious belief these days with so much gear available is that you need to buy your way into precision work, rather than understand how, before such purchases were easily available, people were able to achieve quick and accurate results.

Please don't feel squelched, and continue to comment, but do understand that there's a method to my madness, and yep I know there's lot's of ways to skin a cat.  :beer:

vtsteam:
And here is the #1 Morse taper bored, and the spur center mounted in the lathe spindle. This required no measurement and no special tools. Total time to do (minus taking photos and writing it up) was about an hour and a half.

vtsteam:
The spur center doing some work:

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