I want to experiment with making a wooden ring
using my Pantograph and my router.
And, I figure a 19 millimeter hole would be good.
Because that fits fairly nicely on this finger.
And I figure 3 millimeters wide on here
Just so that it's not too fragile.
And I want to use this router bit.
It's 5/16th or about 7.9 millimeters.
So, I need to sweep out a slightly smaller circle
with the router on the inside. And a larger one
on the outside. And that works out to
11 millimeters inside and 33 millimeters on the outside.
Radii of 5.5 and 16.5 millimeters.
But, I'm gonna set my Pantograph to 3 times reduction.
So, I need 16 and a half millimeters
and 49 millimeters.
And I mad this thing here pivots on a nail, like so.
And, I've got my 2 holes for the follower.
Here's my Pantograph set to 3 to 1 reduction.
Which is with this hole here and this hole here.
Very important these two stay parallel.
You'd be surprised how many people set this up wrong and email me about it.
So, that's why I'm mentioning it.
Here's the circle sweeping thingy.
Pivots on a nail, right here.
And, I can make sure
that I don't get too far off the workpiece
so that my ring will be entirely on the workpiece.
Looks vaguely ring-like already.
So, here it is. It's got a slight taper on the one side.
Because the Pantograph doesn't move straight up and down.
It tilts. But...
Seems to fit.
Though it's awfully clunky. So, I think I'll make the sides
a little bit thinner on that.
And, I'm also gonna use some fancy scrap of exotic hardwood.
Which will hopefully be a bit stronger.
So, here's my second iteration.
And, it fits. A bit snug, but...
I still need to round that.
Next question is how strong is it?
So, I'm just gonna try to crush it in my fingers.
Oh man. That's hard.
(Snap) There we go.
That's actually surprisingly hard to break.
Next I'm gonna put a bevel on the outside edges using my strip sander.
But this is really hard to get it consistent.
So, I made a tool using my Pantograph, of course.
So, that came out nice. But, I also want to put a bevel on the inside edges.
And, that's trickier. So, I had to think about that for a bit.
And I came up with this jig.
It's a larger hole and then a smaller hole and then a dowel on the end.
And then I cut that out on the band saw and cut some slots in it.
And, I had to thin this a bit so these fingers would be a bit more springy.
And the ring fits in here.
And to tighten that up I need to put a rubber band around everything.
So, it's pretty cool how smooth
you can get this exotic hardwood just by polishing it.
Without any varnish on it.
And, this one has got some varnish on it.
And, this is the first one I made.
And, this one I cut a little bit too thin because
this one cracked. Which is how I was able to get
the other ring around it.