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"The Wizard"

Started by lab-dad, May 22, 2013, 04:51:58 PM

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Steam chests are done, just need to work out the manifold.

And decided to do some woodworking.
Man does not live on brass alone.
As mentioned earlier I am using walnut.
Not sure how I will finish it.

Guess i should have moved my daughters pencil up from behind the shop window!
Nice to have a background for this thing!



That lovely brass work is absolute top quality craftsmanship! I really envy all those engineers like you :-\


"Simplicity is the ultimate sophistication" -Leonardo Da Vinci-



Walnut? First jewelry and now furniture. -- Russ

Chuck Doan

Georgeous! I will be interested to see how you fasten the running board brackets.
"They're most important to me. Most important. All the little details." -Joseph Cotten, Shadow of a Doubt



Beautiful work.

Why isn't there mouse-flavored cat food?
George Carlin

Malachi Constant

It's really freakin' cool to see this thing under construction in a scale shop!  8)  -- Dallas
-- Dallas Mallerich  (Just a freakin' newbie who stumbled into the place)
Email me on the "Contact Us" page at www.BoulderValleyModels.com

Ray Dunakin

Visit my website to see pics of the rugged and rocky In-ko-pah Railroad!

Ray Dunakin's World


Thanks guys!
As far as the running boards; scale hardware has small (1.0 - 1.6mm) carriage bolts.
I think I only need about a hundred............

Arno Boudoiron

Hi Marty, your work is beautiful  :o


I am an unreliable witness to my own existence.

In the corners of my mind there is a circus....



Thanks Guys!
Marc, you know i am crazy!

Feeling "cranky" (hey, where has that guy been-he had cool stuff!).
Anyway, I worked on the crankshaft.
Thought some might enjoy seeing the process.
i did not invent these steps but looked hard to find them.

I started with 4 - 1.1" squares and drilled a hole in the center and another inline at a .3125" centerline (10" throw)

Then i turned the squares .890" round using a machine screw in the center and a pin in the offset hole.

Then I drilled a recess & hole in a scrap of plywood to remove most of the material for the counterweight.

Kinda looks like a deranged pac-man! I like it!

Using pins I mounted the parts in the mill vice and machined the straight part of the counterweight.

The finished parts.
Sorry I did not get a shot of the angled cut set-up.
Note there is a .020" radius at the corner to reduce stress. (a sharp edge can crack easier - not that there will be any real stress on this crank.)

And the glamor shot!

Sadly this is only temporary.
I need to install a large driven gear between the throws for the motor.

jim s-w

Hi Martin

Is this actually going to work via compressed air or something?  (it looks like it should so far)


Jim Smith-Wright

Ray Dunakin

Visit my website to see pics of the rugged and rocky In-ko-pah Railroad!

Ray Dunakin's World


Weird...how the heck did I miss this thread totally?? Maybe the title?

Great work Marty. As a machinist I think you are so close to a working model that your next effort should BE a working model.



I am hoping to power this with an electric motor.
See here;https://slatersplastikard.com/linePage.php?code=GBG3
The whole design is a "work in progress" since it really has not been done like I am doing and in 1/16.

I think you mean a steam operated model, and may be, someday. But they look like a PITA
I still plan to do another plymouth/tractor inspired loco as well.

Glad you guys are enjoying.