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| First mini lathe project, oscillating steam engine. |
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| Ross:
Today I drilled and tapped all the remaining holes on the crank to M3 and drilled the centre to 6mm. I'll get on with the piston hopefully tomorrow. |
| doubleboost:
Hi Ross Coming along very nicely :thumbup: :thumbup: :thumbup: John |
| Stilldrillin:
Your collection of parts is gowing nicely Ross! :clap: Good luck with the piston. Take your time. Rather too tight, than too loose...... :thumbup: David D |
| Ross:
Today I got around to machining the piston. I forgot to take the camera down to the shed for this part! I started off at one end and brought it down to the size of the bore. But I went undersized! Luckily I just flipped the workpiece over and did this same, but this times was careful to get a snug fit inside the bore. Once I had got the piston head made I turned the Conrod down to size and drilled a hole at the bottom so it fits the crank. Some photos of the piston: And the fit into the bore. I also buffed up the cylinder it's all shiny now. After that I scavenged an m6 bolt. It was one of those that were only part threaded, and it would be perfect for my crankshaft. [/b][/size][/font] I sawed the thread to size, then put it in the lathe and face it to length. I was expecting to do a small cut to the diameter of the bolt, but I tested it with the crank first and it fit snugly so I've left it! That's it for this weekend, |
| doubleboost:
Hi Ross It wont be long before it is a runner :drool: :drool: :drool: :drool: John |
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