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This is a topic that has been discussed repeatedly on this list.? I guess it won't hurt to cover the same ground again. In the hobby world, typically making small threads, at low speeds, often in

Here photo from *How to Run a Lathe* It shows two ways of threading. I have used both to me they work same.

I have a 4? ton arbor press upto ? broaching. Dave

I also have a 1 ton press from harbor freight but I am going to use my 12 ton shop press with a guide on the ram to keep the broach aligned.

Faster than reading a book. There is over size by 0.003" and tapper keyways. If you miss the size too. Dave

Hello,Paul! It is not rocket science. I would keep the keyway clearance at .0005” to .001”. The closer the fit the less chance of wear.

I would look for 1940's maybe 1950's I have both books After that they become more difficult to under stand. In 1960's that start with more on product and by 1980's was going in CNC and writing was

??? ??? If ya look for one to DL try to find a older one . The newer ones are aiming more & more to the CNC guys & stuff for us manual folks is disappearing . There's several online in PDF form

If you have the broach, simply measure it's width (not the same as keyway width) and cut a channel to give a close fit - maybe a few thousandths larger. I have a 1 ton press from harbor freight to

I think looking for number. *"Machinerys HandBook”* could take days to find. The book one is 1930s and 1940's? easy to find information.? I have books from the 1941 to 1980's and have read the

I have one but it only tells me the keyway info, but nothing that I found about clearance that should be used for the width of the guide slot.

“Macherys HandBook” has all the data you need. I think the book may be available online. Dick

Samd as a keyway.. My self a motor driven would nice. The could use internal gear making. About stroke you need a max of ?"? would do most hobby work and keep thd hp of motor down. Dave

The depth I can calculate but I don't know how much clearance I should use for the width of the slot.

You can speed up the process by fitting a scrap plug in the bore & drilling a slightly smaller than desired key size hole, centered at the plug/bore intersection. Despite having a pretty

Here is a YouTube of using a lathe to make an internal keyway. https://www.youtube.com/watch?v=8FafBDB0fUk You just use the carriage as the "reciprocating ram" that would be on a shaper. I've never

Someone explained that you can easily do it on the minilathe by using it as a shaper. So why go on about buying gadgets (let alone gadgets that cost $160!) We all have minilathes, so I suggest you

When I cutting cast iron I use lathe and cut outside. The photo is casting in class 45? cast iron. It is a harder cast iron than most. FYI The first photo is finished part. The second photo same

I have made about three of these guides and they worked. So I believe that makes me a psuedo-beginner-expert by you-tube standards. :) The slot for the broach needs to be cut such that the portion

Yes, an angle grinder is a great idea. (I think I've actually done it that way before, but I forgot to mention it!) There are two real problems with using barbell plates. The skin is the worst one.