1930 Dynasphere monowheel - GIF

**Jon** · Jan 25, 2019, 11:06 AM

1930 Dynasphere monowheel.

More: https://en.wikipedia.org/wiki/Dynasphere

Previously:

human powered ferris wheel
1869 Roper Steam Velocipede first motorcycle - video and photo
https://www.homemadetools.net/forum/...242#post116057

**mklotz** · Jan 25, 2019, 11:25 AM

Add some TNT and you would have a kami-kaze panjandrum.

**bruce.desertrat** · Jan 25, 2019, 04:40 PM

Modern version

**PJs** · Jan 26, 2019, 11:22 AM

That was an impressive build Bruce. Thanks for sharing that. Wonder if TOT saw this?

Looked like an old Honda motor (maybe a 90?) but didn't seem to use the gears, nor have any brake mechanism. I'd give it a spin though!

**basil3w** · Jan 26, 2019, 09:18 PM

Originally Posted by PJs

That was an impressive build Bruce. Thanks for sharing that. Wonder if TOT saw this?

Looked like an old Honda motor (maybe a 90?) but didn't seem to use the gears, nor have any brake mechanism. I'd give it a spin though!

It appears to have a braking system at 3:51 in the video..

**Fluffle-Valve** · Jan 27, 2019, 02:45 AM

That is one total fecking idiot.

**PJs** · Jan 27, 2019, 09:57 AM

Originally Posted by basil3w

It appears to have a braking system at 3:51 in the video..

Absolutely right! I saw the disc thinking it was just a guide or something, but didn't see the caliper. Thanks!

As for the low buck version...I rolled in a few tires as a kid but not down a hill like that into traffic. His jump at the end of the splash decreed his thankfulness for surviving idiocy.

However I did cardboard slide down our back hill just as steep and almost as long as that one, in a refrigerator box with 2 others. Wasn't pretty when we hit a hidden, sharp, big rock near the bottom which shredded the box and tossed us out to tumble another 40-50' to the bottom, just prior to hitting a concrete gutter.

No more boxes but continued to cardboard slide down that hill every summer for a few years. A whole lotta fun!

PJ