in this video I'll be building this three-legged stool on the pad road and
it's really quite simple there's three of these pieces three of their legs plus
the top the catch is all of these borders and
tenon joints are at an angle and this one's even the compound miter I'll start
with a joints in here for the legs and I've got the dimensions for those here
whether the tenons needs to be cut with the template vertical so I figured I
might as well use that same template for all the joints and cut the mortises like
this
now I gotta tilt the table by thirty degrees and there's these little notches
every 15 so two of those I want to cut the tenon to be as far down this way on
this piece of wood as possible without having piece of the mortise exposed and
that's with the rotor but just a bit above here and have the death stop set
so it just barely doesn't hit the table and then the tenant needs to extend to
where I've got this little mark so we're right about here
that's too tight I need to adjust for a slightly smaller tenant I still need to
cut that corner
I should have cut the smortest a little bit further in this way because I lost
part of that tenon here because they didn't have enough extending here in
fact on this one I extended the mortise just a little bit just to give me more
room here so I'm here to where this ends should be about eighteen point four and
at eight degrees from square and that should actually come perpendicular to
the middle here like so now I added three and a half centimeters for the
length for the tenon and then tilted a bandsaw at thirteen degrees and now I
can cut that off now the ten that goes on this end is the one that's a funny
compound angle and I just realized I cut this bevel the opposite direction of
what I have in the drawings so we'll just do is I'll make a mirror image of
what I have but that's okay and here's the setup for that joint with the
workpiece needs to be at an 8 degree angle on the table and the table tilted
13 degrees now for your bevel gauge I can set this angle and you need to make
sure that follower is straight above the tenon template and I want that bit to
come to the line here and be centered in the wood and then cutting this tenon
ball sub-site forces so I'm adding a side stop again and clamping it firmly
now you may have noticed this edge and this edge you can see here are not quite
parallel and that's actually why I cut the tenons standing up like this on a
table instead of like this because if I cut it like this this edge would be
parallel to here but I actually need a slight bit of twist because of the way
these are angled otherwise this stool itself will have a twist to it because
the legs that go on here actually need to converge in one point and that point
is here if this was parallel to this the legs would be parallel to that and they
would sort of miss each other because they'd be going along these lines and
the whole stool would have a twist. And now cutting the mortises in the legs
now I want to carve some round Tenon's on the end of these legs and there's
even some tenon templates that they sell with the Penta rotor but this one's
kind of small this one only makes a half-inch tenon I want a 10 this size
that's one and 1/8 and so for that I need a much bigger template so working
it out that 10 is 27 and a half millimeters I sweep around that with a
half inch bit 12.7 so I need to sweep a circle of 40.2 millimeters the
pantograph doubles that at the follower so times 2 is 80 point 4 - 22
millimeters that the follower already has that meets the template needs to be
58.4 millimeters in diameter I
put at the conversing in here because this screw I've got is kind of short and
also the whole template is tapered which allows me some fine adjustment I set the
distance between the depth stops here to be just a bit more than the thickness of
the stool top and that way with the rotor all the way back I can use the tip
of the writer as a guide to where the position to stop and a table is tilted
13 degrees because the legs join the top at an angle I am running a 1/4 inch
roundover on all the exposed edges just checking that the legs actually form an
equilateral triangle
I have to glue the last piece on separately because my jointer isn't
quite wide enough thanks to the clamps across the edges I managed to glue that
last piece on perfectly flat
I drew a lie three lights 120 degrees apart and placed the legs on there and
just marking where they end up for where to drill the holes this hole thinking
about because Mac Sheldon who is pretty much mr. petrol to these days asked me
to come up with a set of plans and awesome humbug minor joinery and I drew
these up and he'll be solid one with his website I'll also be selling it on my
website now I cut the mortise and tenon joints
with a template here vertically but I don't recommend that so except for the
one compound miter I recommend you cut all the mortars in tents with template
horizontally and just you mount the workpiece at an angle and if you built
your own pad rotor and it doesn't have a tilting table and just make yourself a
wedge here so you can get this up by 13 degrees and then place it an angle like
that and that will allow you to cut that one compound miter and everything else
was a template horizontal you can put flat on the table
now one thing you can't get on a homemade pen rotor is this desk trunk
pin here and that actually works really well so if you want to buy one of these
there unfortunately rather expensive up there and priced with things like sauce
up and Festool but you can get $100 off by using discount code mw3 at www
pet rotor calm and one thing about a three-legged stool is it will never Rock
even if the floor is waiting