2016 POTD Thread Archive

[pstemari]

The boring head is cutting a vertical cylinder, and the spin fixture is rotating the piece in the cylinder. Any part that sticks outside the cylinder as it turns is cut away.

Very slick. I would never have thought of that.

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[TOOLMASTER]

so plunge then turn?

 

[JimDawson]

It took a while but I found it. One video is worth a thousand words!

And internal

 

[ebgb68]

That is very cool!

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[Franko]

That's very slick. I'm very impressed. Heck, I think even I can do that!

 

[Carlos SA]

Does your new device puzzle your freinds? No? Add more ball handles.

I'm busy putting together a lamp for a birthday.

 

[Mark_f]

It took a while but I found it. One video is worth a thousand words!

And internal

That is amazing. I couldn't grasp it until I saw this little video. One question. Do you end up with a flat spot on the outer end of the ball that is equal in size to the shaft on the other side? It seems like you would unless I'm missing something.

 

[chips&more]

That is amazing. I couldn't grasp it until I saw this little video. One question. Do you end up with a flat spot on the outer end of the ball that is equal in size to the shaft on the other side? It seems like you would unless I'm missing something.

The made sphere/ball is perfectly round in shape with no flat spot. I’m using an Ellis dividing head and it’s angled so the cutter passes center on the outside and over the shaft diameter on the other side. On another note, you can wind up making out of round shapes if your set-up is not in alignment properly, ie: football shaped. And thank you folks for finding a video.

 

[T Bredehoft]

Without knowing,I'll bet you could tip the rotary so that the center was cut.

 

[Billh50]

I was going to type the same thing Tom just did. By tilting the rotary at an angle upward you could almost , if not, eliminate the tip. I bet if you trigged it out you could eliminate it.