Driven drum brakes

Hello all.

Currently I had some work on recycled wheelchair hubs.

I want to build one side mounted, driven rear hubs with drum brakes.

Normally these hubs are spinning around a fixed 12mm axle.

After removing the axle and hammering out the bearings, i put the hubs on the turning lathe, widening the center hole of the drum hubs to nearly 25mm.

Then I pressed the new 25x2 cromo steel axle into the hub.

Additionally, i welded a flange to the outer end of the axle tube, screwed to the hub to make sure a proper torque transmission.

Left: Front hub with usual 12mm axle

Right: same hub after being  converted into a driven rear hub

 with 25mm axle and outer torque flange.

Design No.4

This is another design I made this year.

Focussing speed and high efficiency while retaining the load carrying capability

leads to this particular design with a very low silhouette.

Some influences from Morgan, Jaguar and Triumph, I call it "Shooting Brake"
Intended to be built as plywood monocoque with the long front fenders doubleacting as sills.
No additional girders necessary, which will simplify the building process and saves weight.
This particular design is very low.
I created an ugly dude, 189cm tall (my size) for comparison.

Specs:
2+2 Seater, as always ;)
Length:345cm/136"
Width: 120cm/47"
Wheel base: 225cm/89"
Wheels: 20" or 20x1 3/8
Height of body: 75cm
Height of top: 100cm/40"
Height of entry/ top of sills: 30cm/12"
Seat level: 20-25cm/ 8-10"
Ground clearance: 10cm/4"
Expected weight: 55-60kg with use of 4mm gaboon ply,
Less, if I use thin airplane plywood for non-structural parts.

I guess, it won't fit the needs of the usual grocery getter that good.
Climbing in and out is more difficult than in a design with higher seat level.
Visibility and visability are also restricted by the low silhouette.
So this design is intended as hommage to all those fancy vintage sportscars i like so much.

More projects...

Some components for another velocar,

in this case I bought some vintage rear hubs.

I want to build this particular sociable tandem as a smaller and simpler version,

much like the original Mochets from the beginning of the 1930s.

These are two Sachs hubs with drum brakes, one has also internal gears

 in addition to the derailleur system with 6 sprockets.

I'm still not sure, if it's a 2 or 3 gear hub,

but this one will be installed on the pilots side.

The other one is still without it's cogs, this will be the passengers hub.

 

The front axle will get the same hubs with drum brakes,

these are from a stripped wheelchair.