Scale model cockpit FPV

cool scale cockpit video

Funny Zoo Snap

man enjoys elephant My wife noticed this in the family archives.

RC Nitro motorcycle racing

rc motorcycle Motorcycle racing in Lilliput.

Manned RC Multicopter

manned multicopter
Here’s an RC multicopter big enough to ride on!

Make: Talk 004

make: Talk 004
I had a fun time talking to Mark Frauenfelder in episode 4 of his new podcast, Make: Talk!

One Man Basement Band

one man band
I feel like I could be getting more mileage out of my right foot.


liberty vintage motorcycles An Etsy portrait. Thanks, Danny.

Tequila Sleeve

tequila the champs
Champs sleeve

Wolf-Stelzer Book Lamp

Book Lamp
My friend Tess just made the cover of ReadyMade with her cool lamp design.

Tree Stump Bug

Can this be for real? The design is so awesomely Thunderbirds. Via

The Nothing Box

nothing box


Thunderbirds are go
Are Go!

Command Center

command center
Sweet assemblage spaceship’s bridge.

Four Drano’s

Watch the sink slowly, all but disappear from the design .

Toothpaste Aerosol

toothpaste aerosol
Aerosol toothpaste

Hodgson-9 Radial Engine

kurt Bjorn's radial 9

Tinkerer extrordonaire Kurt Bjorn built this miniature 9-cylinder radial engine from plans in his home machine shop. He thought of an improved cylinder head design that he wanted to try out, so he built a foundry furnace and taught himself metal casting in order to fabricate the heads.

Kurt has also built a miniature turbine engine complete with homebuilt ECU. He publishes serialized accounts of these and numerous other equally amazing acts of model engineering under the 5 Bears Research moniker.

I have been watching Kurt’s site for a few years and have been inspired to construct my own foundry furnace.

6 Responses to “Hodgson-9 Radial Engine”

  1. Brian Williford - Jr. Spaceship Mechanic Says:

    This is exremely impressive!

  2. Zor Says:

    I can’t get enough of these radial engines! I want to see more video! I also like the various turbines at this guys site. I wish someone would come out with a DVD for model engine enthusiasts with good quality video of these things in action.
    The skill levels here are very impressive.

  3. rob Says:

    when you construct your foundry furnace, post your diy on it, I’m thinking about the same thing, but not sure what I want yet.

  4. Steve Says:

    Hey Rob,

    I have already built the furnace and some plinths, but I have yet to make the burner. I will post it when I do.

  5. Dave Says:

    I followed Kurt Bjorn’s projects for several years before my own situation took me to other tasks. Now i find the 5 Bears site no longer being tended. Do you know why? Hope nothing has happened to Kurt. He is a master in the shop.

  6. Kurt Bjorn Says:

    I am humbled by the number of people who have enjoyed my “5 Bears” site and the projects it contains. I am still active, but I found that maintaining the site, and the correspondence it generates, was simply too much, time-wise.

    After a bit of a hiatus (raising kids!) I hope to begin updates once more. I’ve found that even years later, the site still gathers hits. And it still doesn’t have a single advertisement on it, which was a goal from the beginning.

    The engine is run frequently and I enjoy it thoroughly!