tornire una sfera

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Mar 19, 2022, 12:24 PM
Massimo P

11 Attachment(s)

tornire una sfera

Non ho una fresatrice, quindi ho dovuto assemblare e saldare tutti i pezzi.

https://youtu.be/7zJ-EYovvIk

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Mar 20, 2022, 04:57 AM
DIYer


Thanks Massimo P! We've added your Ball Turner to our Machining category,
as well as to your builder page: Massimo P's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-ball-turner-31"> <img src="/uploads/254100/homemade-ball-turner-31.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-ball-turner-31">Ball Turner</a> <span> by <a href="https://www.homemadetools.net/builder/Massimo+P">Massimo P</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/ball-turning'>ball turning</a> </div> </div> </div> </div>
Mar 24, 2022, 05:09 AM
Toolmaker51

re Ball turning jig.......
I appreciate your project, always interested in tooling related to lathe contour work.
And this morning, found new thing to appreciate; self explanatory still (great step by step example) photos and shortest ever demonstration video.
New precedent how to best present a 'build this' post.
Mar 27, 2022, 05:45 PM
Resident114

Bravo,Massimo P!Molto grazie!I'll do this device as soon as I can.
Mar 27, 2022, 06:21 PM
mklotz

There are other uses for a tool of this design...

With a longer tool extension, the tool can turn concave depressions in a workpiece.

To turn a true sphere the rotary axis of the tool must intersect the rotational axis of the lathe. By offsetting the tool axis, the tool can be made to turn ogives. Ogives are often the shape of a rocket nose cone. Some arrow points and propeller spinners use the shape as well.

I discussed an incremental method of turning ogives here...

https://www.homemadetools.net/forum/...n-ogives-84767

You may want to examine that discussion to understand the mathematics of the ogive.