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Wonderfully simple 
Thank you sir.
The little bock on hte right end is a reversing valve which I can’t say I’ve ever seen on an oscillating engine before.
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Your models are nice and new but you keep using this old paper. 
The old paper is getting brown and brittle. I figured I should be using it up. Waste not want not. 
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Beautiful, Dave (as always)
Thank you sir.
Not a steam engine this time. It could be run by one, though. Still a bunch of parts to model.
6 Likes
Milling?
Sort of.
Hmmmm… Off to dinner but I’ll ponder.
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Here’s a hint. The next part I have to work on is similar to this thing I did almost 5 years ago.
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As @Wo3Dan showed, this is a shaper for metal parts.The top oscillates forward and back over the work and the cutter is held in what is called the clapper box. Mine is a machinist’s model about 18 inches tall.
A bunch of gears and other parts to make it go left to do.
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I spent a couple summers using a lathe and Bridgeport face mill, but never used one of these. I rather liked machine shop work.
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Interesting! Never seen one before.
Check out Adam Booth’s video here. You can see his shaper in action. I think they aren’t commonly seen in machine shops these days but they still have their uses. I think he has a video showing more about how the thing is set up for stroke length, and feed rate and such.
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Here’s a view showing the internal works.
Power input is through a pulley on the far end of the shaft with the small gear. Stroke length of the head is controled by the position of the thing in the lower vertical slot in the vertical arm.
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looks great !
is it AI ? 
Fantastic. Looks like quite a few bits and pieces in this one.
1 Like