Wheelbuilding questions tips and ponderations

[JoeH]

The hub does not have conventional spoke holes. If you search Sachs HR 90V, you'll see what I mean. The inner spoke is the one you see the spoke head.

Stick a couple of pics up

 

[EightBallFlyer]

I have a problem. I have been attempting to build a rear wheel for a one off bike with 4 saddles. It has a 36 hole Sachs HR-V coaster hub. They were used on swedish military bikes, in the 50's and 60's. The rim is for a 23" moped/light motorcycle. I've used the 3× pattern and tried crossing the spokes to reduce spoke length. I have an opening in between the spokes for the valve. After my latest attempt it seems that the outer spokes are too long and the inner ones too short, but i'm not 100% sure that's the case for all of them. What am I doing wrong/mässing?

Wow! That's an amazing looking bike. I've never seen anything bigger than a tandem in the UK, and occasionally a tricycle.
Sorry I can't help.
Good luck.

 

[Dicky71]

Wow! That's an amazing looking bike. I've never seen anything bigger than a tandem in the UK, and occasionally a tricycle.
Sorry I can't help.
Good luck.

It's one off, built for members of a student union in Gothenburgs technical college, in the late 50's. It was built by Monark cycles and yes It's pretty impressive but a bit of a PIA to work on. It has kept my son occupied while he was studying. He's had more fun with the student union than the actual studying. SURPRISE SURPRISE