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| Building Stuarts Compound Steam Engine |
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| saw:
Hello Gentlemen! Thanks for nice comments. Cylinder block Now when I have got my new tools, it’s time to move on with the cylinder block. As you can see on the picture there is much material to remove. The first thing is too straight up the bottom so I have something to work from… … and with an end mill it is done radar quickly. I did the top at the same time and finish off with a fly cutter. Then both sides… … and even here I finish off with the fly cutter. Then some more work with the end mill. I took this photo true my magnifying lamp, when I marked up for the columns… …and I can see that the column fits very well with my smaller nuts. Here I marked up the centerline… …and I can use my new tool, the boring head. I began with the HP cylinder. Then reaming the cylinder… …and honing the cylinder. Then it’s time for the LP cylinder. Reaming, this time I have to use my lathe… After horning the LP cylinder I marked out the hole for the drain cocks, then drilled and threaded. I feel radar pleased so far. :) Now I have to take care of the steam exhaust … …and with an end mill I finish the steam passage. So far so good, but it’s still long way to go. :coffee: The cylinder block was radar hard to do, many dimensions that must fit, and everything have to bestraight, but I think that I have manage that… :med: I’ll be back. |
| PeterE:
Really nice work on the cylinder block Benni! :clap: :clap: BR /Peter |
| NickG:
Nice work Benni, probably the most difficult and expensive part to make. You've done a great job on it ... I haven't tackled anything that complex from stock yet, let alone a casting :bow: Nick |
| saw:
Top Covers Hello Gentlemen Thanks PeterE and NickG for nice feedback. Now it’s time to take care of the top covers. There are two, one for the HP cylinder and one for the LP cylinder. After the set up in the lathe, I clean up the bottom side, and the edge that fits in the cylinder. Then turn around and clean the edge… …and after a special setup I did the top side of the covers. Here I have done both HP and LP top cover. Now I have to find the middle of the centerline between HP and LP cylinder. When that is done I market out for the hole… …and drilled / threaded. Then I marked a line with a center drill because this material has to remove. Then in the round table I center drilled / drilled and finish off with an end mill. Then I placed on the cylinder block and drilled the hole. Then threaded the hole… …and check so it fits well. Then I remove some material so the two covers fits together… …and with some adjustment it will do. And this is how it looks so far. One big step for me, a small step for the Compound. :smart: I’ll be back. |
| Stilldrillin:
--- Quote from: saw on September 05, 2012, 04:31:32 PM --- I feel radar pleased so far. :) --- End quote --- So you should Benni! :clap: Good work, you have done there....... :thumbup: --- Quote from: saw on September 12, 2012, 09:59:30 AM --- One big step for me, a small step for the Compound. :smart: I’ll be back. --- End quote --- A giant step forward, making a beautiful engine...... David D |
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