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| Henning:
THAT is a very nice job indeed! Great work! |
| NickG:
Nice work Chuck, like the motion and sound ... it makes it a bit different when there's a mechanical impact in the valve mechanism, i've got a flame licker like that! Why wouldn't it run the first time out of interest? |
| cfellows:
--- Quote from: NickG on January 15, 2012, 02:58:12 AM ---Nice work Chuck, like the motion and sound ... it makes it a bit different when there's a mechanical impact in the valve mechanism, i've got a flame licker like that! Why wouldn't it run the first time out of interest? --- End quote --- Thanks, Nick. The proble was some binding and massive air leaks in the inlet air supply. Had to completely redo them. I've got one more air leak to fix then I'll post another video and some pictures. Chuck |
| cfellows:
Sometimes I look at a part I've just made and have a "What the H*LL were you thinking"! :doh: This is the sliding rod that the piston is fixed to and the cylinder slides on. The two radial holes are the ports which admit the compressed air into the cylinder. The piston is solidly fixed to rod right between the two holes. I had originally planned to fasten the piston to the rod with a set screw. So, I milled a flat in the rod as a seat for the set screw. Unfortunately, I milled it too wide, connecting the two holes and providing a convenient passage for air to transfer from one side of the piston to the other. So, what you see here is what is my final fix to air leaks in the form of a dollop of soft solder which I'll file and sand to the OD of the rod before re-attaching the piston. By the way, I abandoned the idea of set screws in favor of loctite 620 (love that stuff). I'd like to think I learned a lesson here, but I'll probably wind up doing something else equally as obtuse in the future!!! Chuck |
| cfellows:
After a few trials and tribulations I'm considering this engine finished. The final piece was the birds eye maple base. Went down to my local Woodcraft store and found a little piece 24" long x 4" wide by 7/8" thick (small in size, big in price - $22.00). Here's the glamour shot... Here's the remainder of the pictures, the video is at the bottom... And the video... http://www.youtube.com/watch?v=r2Ku5yF4EsM&list=UUZB8pRNp9Plbd0-T9RmyR9g&index=1&feature=plcp Chuck |
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