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Ok, this is a bit of a joke but it took as long to make as if it were a practical size. It's a functional lantern tool post complete with rocker and bit ground with the proper angles to cut threads.
https://s3-us-west-1.amazonaws.com/f...he/47500-1.jpg
https://s3-us-west-1.amazonaws.com/f...he/47500-2.jpg
It was made to fit on my working dollhouse scale (1/12) metal lathe, made from a casting set obtained from PM Research. This picture shows it in place on the cross slide.
Thanks mklotz! We've added your Miniature Lantern Tool Post to our Machining category, as well as to your builder page: mklotz's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/miniature-lantern-tool-post"><img src="https://www.homemadetools.net/uploads/236995/homemade-miniature-lantern-tool-post.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="http://www.homemadetools.net/miniature-lantern-tool-post">Miniature Lantern Tool Post</a> <span> by <a href="/builder/mklotz_3">mklotz</a></span> </div> <div class="tags">tags: <a href="http://www.homemadetools.net/tag/threading">threading</a>, <a href="http://www.homemadetools.net/tag/tool-post">tool post</a></div> </div> </div> </div>
Looks good, that's working in miniature! Now are you going to attempt some itty bitty Armstrong bit holders?
The lathe prototype is early Victorian so I think it predates the Armstrong holder. However, I did build a working four jaw independent chuck for it...Quote:
Originally Posted by Al8236
The chuck is 1" in diameter. Setscrews are used to move the jaws, hence the somewhat inaccurate hexagonal chuck wrench.
Marv,
Really nice miniature machining work on the tools. What is the thread size of the clamping screw on the lantern tool post? Looks extremely small. Thanks for posting,
Paul
The screw is a 0-80 SHCS - not easy to find those, or the wrenches to fit them.Quote:
Originally Posted by Paul Jones
I can remember when I started building miniatures that a 2-56 thread looked impossibly small; I'd never be able to tap that without breaking the tap. But, the longer you work in miniatures, the bigger this stuff seems to become. With the proper (homemade) tooling, 1-72 and 0-80 are perfectly doable. To date, the smallest I've done is 00-90. I have a tap for 000-120 but, thankfully, a situation requiring that has never arisen.