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| The Artful Bodger's nutating engine! |
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| sbwhart:
Coming together nicely John:- I've still no idea how it work :scratch: but all will be revealed in time no doubt. Have fun Stew |
| Stefan Pynappels:
I think it is becoming a little clearer how this works, but I'm not going to say anything until I see it running so I don't look stupid! Pretty ingenious though if my thoughts are correct. Stef. |
| John Hill:
Stef, Stew, you are not the only ones eagerly anticipating when it might work as I am not even really sure myself! Other priorities right now but work continues, slowly, on the frame. |
| John Hill:
The crankshaft was assembled today for what may be the final time! I used the lathe chucks to ensure parts were in close alignment before pressing them together. No solder of screwed mounts, just a close fit, super glue and fingers crossed. |
| bogstandard:
John, Personally, I don't think superglue will hold it, especially as the pins are a tight fit. Because it would have been squeezed out of the joint anyway and just sat on the surface, doing nothing to hold the joint together. You will be relying on the fit of the pins in the holes to do the intended job. Superglue has no strength at all in the operation you are trying to carry out. It is OK for sticking broken cups together, but not as an engineering adhesive. Unless of course you have managed to obtain some of the very hi tech two part stuff, that can take the place of welds. Even Loctite has to have a working gap to work. If I need to use adhesive and a tight fit at the same time. I always oversize the hole a minute amount and put a straight knurl on the ends of the rod to expand the rod to make it a tight fit in the hole. Even a light knurl will expand a rod a few thou, the deeper the knurl, the larger the rod 'grows'. Then with Loctite on the knurl, some is automatically taken down into the hole in the tiny knurl gaps, ready to do it's job. Bringer of bad news Bogs. |
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