A little differential from a little machine & KM

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More to see in this three minute video

More to to read about the diff/vid here

More to read about the little mill here

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Love the mill. Will you be publishing a CAD model for it?

Short answer: yes.

At least I intend to. But not today. I’m closer to publishing a somewhat parametric model of the slider mechanism.

Here’s an Onshape model of the linear slide mechanism generalized for generality:

pmc’s cheap linear slide

The mill is three of those, so a complete for-publication model shouldn’t be far behind. Modulo Christmas. And other stuff. So not promising super-soon.

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And a Happy New Gear! Thanks for sharing this.

Four months and a few revisions later…

Here is, I think, enough info to actually build a slide for real:


A Cheap Compact Linear Motion Slide

That presentation starts with a handwheel-driven adaptation for a shorter path to building/using a slide of such design without a bunch of motor-related complexity, and also includes said bunch of motor-related complexity.

Now, about that built-but-not-yet-tested next rev of the little mill’s XY table…

and checking out Stewart’s considerable advancement of KM.

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5.5 months later…

Yes.

& How-to.

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Aluminum.
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1 minute video.

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Maybe getting runout under control? Let’s see if an even littler diff works out:

Since last post, the 2021 Hackaday Prize judges gave this little mill a “finalist” spot. :blush:

K:M CAM keeps getting better! Much appreciation.

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I remember this model :slight_smile: Looking good!

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Answer: yes.

littlerdiff

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