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| Powder Keg:
Chris. I was turning slow because the work was way off balance. Also I had an interrupted cut. I wanted to, and easily could have went faster. With Carbide tooling you have to push manual machine pretty hard to be going too fast. At work we have quite a few parts that have a lot of metal removal. I'll usually run 300-500 RPM taking cuts around .250" off the diameter. Sometimes most of the insert is glowing red. I'll try and get a video next time:o) I'm going to try and get a base knocked together. That way all my parts have someplace to live. I have most of the metal for it. This thing is bigger than I thought it would be :headbang: Better get off to the shop:o) Wes |
| Powder Keg:
I cut the crank disc/pin off the bar with my band saw. I then chucked it up, on the pin, in the collet chuck on my little South bend. I was able to face the part off to length pretty easily this way. I think I need to start on the base for this engine pretty soon so I have a place to put some of my pieces. Here is a quick picture. There is a hole all the way through the pin so the con rods can get a little lube. Thanks for looking. |
| raynerd:
Nice work PK and thanks for the reply above, only just seen it. Look forward to seeing it running. |
| Powder Keg:
Here are a couple of the pieces for the base I'm going to build for this engine. The ring will be cut off at the white lines and the slug at the top will be machined and then welded to the arch. I still need to come up with some feet for the arch to be welded to. |
| Powder Keg:
The crank valve has been bugging me so I decided to work on that some today. I set up my dividing head and lined everything up. I set up my height gauge to the center of the valve then scribed some indexing lines on it. I couldn't find my edge finder, So I used a piece of paper. That will be close enough for these slots. I then started machining key ways around the shaft the "hard way". It went pretty good. My Chinese end mill went dull, but I made it through. After I had the keys machined I needed to drill a port to connect the intake port to the hole in the center of the shaft. I started with a center drill. I then drilled the hole to size. Here Is what I have now. There are a few more holes that get drilled and tapped yet. It will take a few more setups to get them though. |
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