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SIEG X2 Y Axis Power Feed Idea

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rythmnbls:
I mounted the hand wheel in the 4 jaw chuck by the outer rim.



Regards.

Steve

MetalMuncher:
Thanks Rythmbls.

That method worked for me as well. I have the handwheel turned down now, and have started boring out the pulley that will go on it.

These pulleys surprised me in their design. I chose a "no-hub" pulley design to get the thinner sizes, but I am going to refer to the center as the hub, below, for lack of a better term.

As you can see in the photo, they are apparently assembled from at least 2 or more components. I am not sure if the crimps running around the flange/hub junction are just to hold flanges on, or if the notched perimeter is a piece they slide onto a blank center hub and swage it together. Either way, I was concerned about it breaking loose at that junction from the force applied while drilling the center out to 3/4" on my way to 20mm. So What I did was park the dual setscrews that came with the pulley such that they span the apparent junction, which would hopefully keep things from moving. Then I used a step drill in the lathe tail-stock (I love step drills!!) and it drilled out very smoothly, all the way up to 3/4". After I set up a boring bar to finish it off, I stopped for the night. When I get back to it I'll bore it to fit the handwheel journal.

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