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| sbwhart:
Hi Kvom I followed Bogs method too. I'm sorry that I've misled you guys, but I failed to take a pic of skiming the piston to final diameter griping the rod in a collet so that it would all be running true. Thanks for following the thread. Stew |
| AndyB:
Thank you Stew :bow: :bow: :bow: :bow: :bow: :bow: :bow: So the eccentric is offset from the centre by Y/2? That is one of the many things that I have to know and forget to ask when I speak to people about steam engines. :doh: Keep up the great work. :clap: Andy |
| sbwhart:
Sorry Andy I didn't answer your origonal ?. The slide movement is X-B So the eccentric offset is (X-B)/2 so for the popcorn the calculation is (14.6 - 9)/2 = 2.8 Stew |
| AndyB:
Fantastic Stew :bow: :bow: Many thanks. :ddb: :ddb: :ddb: Sorry, I am by no means a mathemetician...I have to take my shoes and socks off to count to 11 :lol: :lol: :lol: :lol: If I have to count anything unusual I have to ask my mate from Wisbech to take his shoes and socks off... :lol: :lol: Andy |
| Stilldrillin:
While we're slightly mathematical......... :smart: Discussed, some months back. What was the thickness of packing needed in a three jaw chuck, to throw to the required offset? :scratch: I seem to remember a simple reply. (Like 2 or 3x throw)..... David D |
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