Domino 500 - triangular table dilemma!

[Charlie Hill]

I am making a small triangular table. Two sides will be right angles, the third at 45 degrees. The legs are 30mm square, the rails 22 mm thick, 50 mm wide.

For the right angles I have used 6 x 40 dominoes with 28 mm depth on legs, 22 mm on rails. So far so good.

What I am struggling to work out is what settings to use when joining the 45 degree rail to the 90 degree legs!

Can somebody help me with this please?

 

[tjbnwi]

You should trim the 90º leg side to be on plane with the 45º rail. This will create a haunch that the rail will sit on. The Domino would enter the rail and legs 90º to the mating surfaces.

I think I know what your asking but……….a sketch/drawing/picture would help.

Tom

 

[Charlie Hill]

You should trim the 90º leg side to be on plane with the 45º rail. This will create a haunch that the rail will sit on. The Domino would enter the rail and legs 90º to the mating surfaces.

I think I know what your asking but……….a sketch/drawing/picture would help.

Tom

Tom

See sketch below which hopefully clarifies what I am trying to achieve. This is my first attempt at attaching something to a post, so fingers crossed it works!

[attachimg=1]

 

[bkharman]

I would cut the domino on the rail on each side straight into the rail before you cut it at 45. Cut it a bit deeper as you will be losing some of the depth.

Let me know if that works out. It should.

 

[Charlie Hill]

I would cut the domino on the rail on each side straight into the rail before you cut it at 45. Cut it a bit deeper as you will be losing some of the depth.

Let me know if that works out. It should.

Thanks for that tip. However I am still struggling to work out what settings to use - the 90° On the leg will be the same ( except for depth as you said) but what to use on the45° rail so that it will be correctly positioned against the leg?

 

[Stone Message]

Hi Charlie

I have only just seen this...

I understand that the rail is cut at 45 degrees (or at some angle - does not matter) and the legs are just square or rectangular in section.

Method A:
The Domino cuts in the legs and rail should be in the same plane - in other words if the cut into the leg is at right angles to the contacting surface then the cut into the rail should be at right angles to the contacting surface.

Method B:
Alternatively if the Domino cut in the rail is parallel to the sides of the rail (as though you plunged from the end before cutting it at an angle) then the cut into the leg should be at an angle to match the geometry of your design.

Assembly for Method B will be tricky as the joint into the (square) leg at the back will not be in the same plane.

Peter

 

[tjbnwi]

Set the fence to 45º, adjust fence height just shy of the short point, plunge into the 45º of the rail. Set plunge depth not to plunge through, try to leave about 5 mm, this reduces the chance of hydraulic blowout is you use the narrow setting. Make sure you have a back up board under where you drive in the dominos.  You may need to make a deeper plunge in the leg to compensate for this shallow plunge in the rail. Seeing as the 45º bevel face is parallel, and the domino is now perpendicular to the leg face the leg is plunged at 90º. 

Tom