Making a small tapered hole?

8ntsane

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Hey Guys

I have not had to do this, but wonder just how you would go about it?

I was doing some work on my Sidney lathe, and I had to pull the leadscrew to reverse shaft out to make a bushing. The shaft is held in with a tapered pin, aprox 1/4 at the big end. Thats when I noticed the leadscrew, and feed screw where also retained the same way. I got thinking, Hmmmmm :thinking:, if I had to ever replace these items at some point, this could be a problem.

The tapered pin is no problem. Easy to reproduce that part :whistle:. But if I needed to put the reciever hole through the side of a shaft, how would you go about doing this? The tapered pin arrangment is a solid way to retain the shaft, and keeps the shaft tight in the coupling, and I wonder if there is a easy way to reproduce the hole for the pin to seat into? tapered reamer?:dunno:

Some things you see all the time, but if it comes down to how its done, would you be ready?
 
Thanks Paul

That certainly anwers my question.
Just a good thing to pack away in the old memory bank:whistle:
 
Paul,

If you don't want to spend the cash on a tapered reamer, you can make a "D" bit pretty easily. It's just a pin with the appropriate taper and a flat ground on it for clearance to the exact center of the pin. "D" bits are commonly used in watch and clock making.

Tom
 
Paul,

If you don't want to spend the cash on a tapered reamer, you can make a "D" bit pretty easily. It's just a pin with the appropriate taper and a flat ground on it for clearance to the exact center of the pin. "D" bits are commonly used in watch and clock making.

Tom

Thanks Tom

That thought never crossed my mind. Sounds like a great Idea.:thumbzup:
 
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