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JEZX
03-27-2013, 08:45 PM
this is something ive wanted to do for a while . ive mastered ever kind of aririfle on the planet and thats my main hobby , but figured id try this ....and figured id post it for who ever gets the same stupid idea to build a model steam engine :)

my idea for this is all out of my head so i'm not betting it will be 100%successful , but im hoping to use a valve style from one of my air rifles to drive the piston .pictures when its done:)


so far my wheels and push arm and cam are looking good , (i think). some simple hand gcode for the wheels and arm shape .2 wheels are just over 6'' , 1/2 round rod for straight through rod and .4round for the cam which is off set for almost 1 '' travel.


bushing /arm
http://i37.photobucket.com/albums/e68/jezx/100_4085_zpsc8f277ea.jpg
making push arm
http://i37.photobucket.com/albums/e68/jezx/100_4082_zpse63cada9.jpg
fly wheels
http://i37.photobucket.com/albums/e68/jezx/100_2126_zps6ca85459.jpg

sasquatch
03-27-2013, 08:58 PM
Thanks for the great pics, and that is a beauty of a flywheel!! Nice work, very interesting.

JEZX
03-27-2013, 09:40 PM
there are a few crumby videos of the making of stuff on my photobucket sit aswell , i hope to have all of it done in a month or 2 and some good pictures thruough out the process

Guido
03-27-2013, 10:12 PM
Like it or not JEZX, you're now in charge of all flywheel designing/machining.

--G

Frank46
03-28-2013, 02:10 AM
Just think about the catapaults on aircraft carriers. They can launch a 40,000 pound aircraft from zero to about 160 with no hand on the stick. Course they use superheated steam at about 900 degrees and about 1200psi pressure. Frank

duckman
03-28-2013, 02:25 AM
It's my own opinion but I think your going to need more rim weight , you need the inertia to keep it going.

JEZX
03-28-2013, 07:30 AM
is that for a double action or single ? i could always put an extra steel rim on if i was to go with single action but
ive been messing with the double action valve idea which id think would run it easily :)
as ive never built one and it is going to be different then any other out there im sure i will learn a few things ....i'll probably learn that i should have built it like the designs known to work over the last few hundred years:)