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Working on a new tiny shop

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vtsteam:
Tom,  thanks!

I did work on the lathe a little today, to make it narrower.  The motor is mounted in back of the bracket as shown. And that extends the width of the lathe, and requires a really wide bench top.

This bracket has an over-center lock. By pulling the handle forward, the lathe change belt is disengaged from the spindle. The motor is on the bracket to maintain tension with the jackshaft, no matter what position. My earlier thought was to move the motor higher on the mounting bracket and nearer to the handle, to get it away from the back of the handle.

Here you can see it against the back wall on the right hand bench.

vtsteam:
But today I realized that because of the motion of the bracket, it also moves the jackshaft closer to the base when you release the lathe spindle. And when you tighten the belt again, it moves the jackshaft away from the base.

So if I mounted the motor on the base, it could tighten its own belt on the jackshaft pulley at the same time the lathe spindle pulley tightened.

In other words it would be a double clutch action instead of a single, and the jackshaft would stop when the handle was pulled forward along with the lathe pulley.

And I also thought that if I raised the bracket up, I might be able to find a position where I could re-use both belts. Here I was testing the height with some scrap blocks and the motor position needed to get both belts to work with this idea.

vtsteam:
There was a position where it all worked, and I bolted and glued the spacer blocks down to the base, and bolted the motor down. This should also stiffen the area between the bracket and the lathe headstock. It has made about a 5 " difference in the width of the footprint. In fact I could probably reduce it another 2" by trimming the back edge of the mounting board, since the blocks are that far inboard, and the motor is, also. The lathe now fits well on the bench top.

vtsteam:
And finally for today, here's a shot of the handle being moved part of the way forward. Both the lathe and the jackshaft disconnect from the motor this way.

Another possible advantage of the new setup is that the motor and jackshaft could also now have a couple of different size pulleys, for another speed range, since the belt now slacks to allow changing the motor belt position.




ps. I will be making a housing for the motor.

tom osselton:
Looking good! I was just wondering if you could switch the pulleys around so the motor is behind the chuck and not in the swarf zone.

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