Spokes for Serving Cart

The spokes on the T. Frid Serving Cart show errors on the inside tenons that go into the hub mortises. Is it something that can be ignored? I sketched out the hardware for one wheel to the left of the origin too. I will start tagging and making scenes if it looks ready.
T. Frid’s Serving Cart (4).skp (459.1 KB)

Whick spoke component shows the error and what error? Here I’ve colored the spokes by component definition. I don’t understand why you have different spoke components. They should all be instances of the same component.

It also look like you are randomly placing the spokes instead of using Rotate/Copy to make a radial array.

Yes, I placed and replaced after redoing until they fit. I had to remove one brick layer and make the mortises in the middle layer (like T. Frid said to do it in the shop). Then after getting them all placed, I put the third layer back in place. I know I did it the long way. Here’s a screen shot of one spoke and it shows on all spokes.

The Short Edges message isn’t important in this case.

As for creating the spokes and getting them in the right place see this video:

Are the spokes really supposed to be shaped like you have them?

T. Frid said that he shaped them that way to match the geometry to the rest of the serving cart.
Thanks for the Square One video.

It would be interesting to see an image of the spokes on his cart.

He shows a whole series of steps, including using a tablesaw to cut the spokes to length (although the book doesn’t exactly state the length; it has to be interpreted from the drawing at a scale of 1/4" equaling 1"),drilling relief holes on the drill press to help remove waste, using a plug cutter on the drill press to shape the round tenon that goes into the hub, a stationary bevel sander and wedge made to the correct angle to shape the bevels and the tapers on the spoke. The book details how to make the hub starting as an octagon for flat surfaces to drill the mortises and then sanding the hub round.

Just an idea: It came to my mind that the spokes could be made together with the middle layer of the wheel rim and slotted there, as a simplistic solution

Simple but not very strong, as either the spokes or the wheel segments would have cross grain when made as a single piece.

Anssi, that’s the way to do it in the shop and the way to do it in sketchup. DaveR, here is a photo of some text and the wheel drawing in the book.

No, Steve. No cross or short grain with this method of building the wheel. Or are you referring to Anssi’s suggestion?

slbaumgartner, I agree that the spokes are separate pieces from the second brick layer. That is how the illustration shows.

I was referring to @Anssi 's idea. I edited the post to make that more clear.

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This looks to me more like what Mr. Frid, the inventor of the “dovetail hammer”, shows in the illustrations. The spokes are 5/16 in. square to start. No real tenon on the outer end.

By the way, check the thickness of the felloes on your wheel. They aren’t 5/16 in. thick.

True, when I saw that the total thickness of the wheel when finished equals one inch, I decided to make the felloes .333". T. Frid probably sanded down to 1" thick.

Yeah. I expect that’s the case.

Thanks, for all the help. I’m going to work on scenes and tags. Did you see the wheel hardware to the left of the origin?

No crossgrain there either. I was thinking that the middle layer might look something like this:

Yes. Why don’t you try what I suggested before? Draw those parts in place on the same centerline. That will save you a bunch of work.

Good point. That would have been faster than using guidelines.