Shopsmith Forums

reible wrote:Time for another SNT. It just arrived today so I will only show the box and the open box and let you have guess or two as to what it is.

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snt4a.jpg

I know this will be super easy for some of you but I don't think everyone will know what this is.

I have wanted one of these for 20-30 years, so now I have one. I have to wonder how well it will work on a backwards shopsmith but I'm sure going to give it a try.

Ed

I would be interested in how it works out for you. Please post results.

[youtube]https://www.youtube.com/watch?v=s0dF4u0KyXA[/youtube]

This thread is bound to get boring.

I still remember the first time I saw one of these working, on metal of course and it looked so cool. Thinking back that was more like 50 years ago. I was working at a machine shop and while we didn't have or I guess need a lathe for this function(milling machines can do this too) they let us go to a tool show in Chicago where they had hours of machines to look at. This was one of the things that stood out for me.

I think as long as the cuts are very light it should work. I do wish that shopsmith had a better system but we shall see how it will work out. If it's a failure then at least it will have been fun to try, if it works then wow this will be a cool tool to own.

There are three diameter of cuts and three lengths. You can't go too deep, will check number out when I have time.

Ed

sehast wrote:I have that very same drill press for the Dremel but I had no idea it could be turned 90 degrees or is that another attachment to the original press?

Same here.

sehast wrote:Man that is an expensive piece of aluminum from StewMac.

But really well made!

reible wrote:Time for another SNT. It just arrived today so I will only show the box and the open box and let you have guess or two as to what it is.

$matches[2]

snt4a.jpg

I know this will be super easy for some of you but I don't think everyone will know what this is.

I have wanted one of these for 20-30 years, so now I have one. I have to wonder how well it will work on a backwards shopsmith but I'm sure going to give it a try.

Ed

Its a Criterion Boring Head and boring bars. Unless it has a Morris #2 taper to fit in the tail stock, you will have to build an adapter for the spindle.

That boring head has quite a bit of mass to it. Especially for a Shopsmith tail stock. The #2 Morse taper in the tail stock would be drastically short for something of that size and weight. Tapering of what you're trying to bore might be a problem. I like the concept though. Coming from a old lathe hand; it would be like adding an X axis cross slide (without the compound) to a Shopsmith.

pcd7326 wrote:That boring head has quite a bit of mass to it. Especially for a Shopsmith tail stock. The #2 Morse taper in the tail stock would be drastically short for something of that size and weight. Tapering of what you're trying to bore might be a problem. I like the concept though. Coming from a old lathe hand; it would be like adding an X axis cross slide (without the compound) to a Shopsmith.

From an operator's viewpoint(headstock to the left, tail stock to the right, tooling between the operator and the headstock/tailstock axis) what direction is X,Y,Z? Old school fool question.

Just like a metal working lathe x runs down the length. Y is across the bed and Z is the vertical

JPG wrote:From an operator's viewpoint(headstock to the left, tail stock to the right, tooling between the operator and the headstock/tailstock axis) what direction is X,Y,Z? Old school fool question.

The same on an engine lathe. Z axis would be from your left to your right (Z- to your left, Z+ to your right). X axis would be Forward moving directly away from you or towards you (X- away from your nose, X+ towards your nose), which is the complete opposite on a slant bed CNC. Y would be at any angle within 0 to 180 degrees of Z & X (the compound axis on an engine lathe).

So, with the boring head mounted in the tail stock, and dialing the head in one direction or another (+/- ) would be the equivalent of X axis (controlling the diameter of the bore). Z axis would simply be the carriage moving along the way tubes, or the quill being moved in or out. Y axis would not be possible with that setup. Now, if you had the Shopsmith universal lathe tool rest... Things could get interesting.