The "I'm Building a Bench" Informal Meetup Thread

Absolutely. I don’t know how to join parts like that. I’d like a quick course if you have the time next time we meet.

1 Like

Something silly that you may notice: the leg height is a derived value. There’s a total height, tabletop height, and a gap value. The leg height is calculated based on those values.

There may be other unintuitive settings.

1 Like

I updated the designs to have the proper trig for calculating the angle of the trapezoid based on the angle of the legs. Parts aren’t perfectly constrained but it’s getting close. I’m going to cut my parts now and stay out of Fusion


Welp… I did not realize the fancy lumber stores are not open on weekends, and tomorrow is a holiday, so I’m going to try really hard to get my parts purchased and milled Tuesday, but it’s going to be tight.

I won’t be able to make it tonight. Will do my best to follow along and catch up.

1 Like

We were able to get the tapers cut for the leg assemblies today for both myself and @Iammikecohen. I’m not really sure how to show how we were able to line up the angles. It’s harder to type out than to show. Maybe I need to me a small video demonstrating. There’s probably one out there already…

I wasn’t able to cut dados on my legs due to the router-lift being in a less-than-precision state. But @Iammikecohen was able to put his leg assemblies together because he’s joining with dominos.


This is going great. If anyone is interested in joining us next week I think we can get you caught up.


I just noticed your Idles hat. We’re going to see them + LCD SoundSustem + Jamie XX on June 8th (Nola) & 10th (Dallas).

Here’s the mounting bracket drawing. It’s so we can cut it out w/ the Shaper. But as discussed, if they’re magically programmed to be cut on the CNC - I don’t see anyone complaining. But at least if someone wants to cut it w/ the Shaper the option is available.

1 Like

It looks like you’re planning to cut the trapezoid. Will you also use the Shaper for that?

That AI file has 90 degree angles and I’m wondering how you’ll handle that.

I’m going to make a tenon out of the trapezoid on the table saw.

I don’t really understand this statement.
The center rectangle in the AI file is a mortise, and I’ll cut a tenon into the trapezoid which will be joined together.

The CNC piece won’t have perfect corners, they will be rounded by the bit. Either you’ll need to round your tenon, chisel out those corners, or add dogbone fillets to the CNCed piece.

Dogbones are probably best and should be easy to hide.

1 Like

Got it. OK.
I was assuming that I would chisel out the 90º, and just treat the CNC as a glorified hogging-out-of-material machine. Be it the Shaper or the CNC. Those counter-sunk slot holes are what I’m after more than anything. They’re a pain on a traditional router table setup.

Question: in the dimensioned view of the leg, if x = 1.25, and y = 12, what is the z dimension? also 1.25?



It’s tapered with 2.5 at the top, and 1.25 at the bottom. Michael and actually made ours 13.5”, since we planned on making ours benches and not coffee tables. (For an overall 18” bench seat)