Real version here
20 March 2021
I added Wheels and fork, the rear wheel is the one I will
actually be using, the front forks and wheel are ones I
have lying around in my shed, but not necesarily what
I will be using. I might try some long narrow forks, or
a springer or girder next time.
That is one of the advantages of building in CAD first,
I can try various combinations without buying the parts!
26 February 2021:
The frame with all the castings is now completely in CAD,
and I have put the rear hub and brake assembly in place,
centering the hub in the frame. I also added the 4-speed
transmission. Next I will add the chain and rear wheel and
see if I can get it all to line up nicely!
8 February 2021:
The front half of the frame (from a 1974 Shovelhead) has
now been laserscanned and then CAD modeled.
The hardtail part only scanned sofar.
Modeling all the castings takes a lot of time! I can
already see that I will need to do some modifications
in the seat area.... The CAD model of the neck casting
is now for sale at www.dbbpshop.com
9 January 2021:
The front half of the frame is from a 1974 Shovelhead,
I started with laserscanning and then CAD modeling the
neck casting. For scanning I use an Einscan Pro Plus 2X
mounted on a tripod for more stability.
All the postprocessing and CAD modeling was done with
PTC CREO Parametric 7.0
From the workshop manual I have a blueprint of the stock
frame, which I am also using for reference. Tubes are
easy in CAD but the castings are quite complicated
because of the more organic shapes
I have finished the hub and drumbrake, this will help me
figure out how to get that tire in there while keeping the wheel
centered; I really don't like offset rims.