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| The Artful Bodger's nutating engine! |
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| John Hill:
Haha! Bet you all thought I had given up on this project and thrown the bits under the bench eh? Well no, (not yet anyway). Here are all the internal bits! From the left, cylinder, displacer/cylinder head, connecting rod with part of the 'small end' already attached, a couple of pins for the small end universal joint, the piston, piston sleeve, components of the big end universal and finally the wonky bearing on the crank pin. Piston, connecting rod and the big end all assembled, yes the crank pin is supposed to be on an angle like that! In the background is the cylinder with head in place. Still to make, crank webs, crank case, flywheels and something to hold it all together. |
| Darren:
Well you might have got it David but I'm still in the dark on this one :scratch: Watching this one with interest John.... :dremel: |
| Stilldrillin:
Darren, You might not have got it, and you might think I`ve got it..... (That`s if I`m the correct David)...... :scratch: I`m not sure..... Of either..... ::) :thumbup: David D |
| John Hill:
Relax guys, I am not sure I have "got it" either! :coffee: It will be very important for there to be no lost motion in either end of the connecting rod and I am having some difficulty working on such small bits. (I might have to pike out and consider commercial universal joints.) |
| John Hill:
Revised wonky bearing, I was afraid I would not have enough rotation of the piston to get reliable port action so after searching the bearing department I found this one hiding in an ancient photo copier, it has a much bigger bore though same outer diameter as the previous bearing.. It allows about 33 degrees of wobble. Discounting slack in the universal joints that will be 66 degrees of piston rotation which should be much better than the previous bearing. |
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