|Andy Reynolds||22/08/2019 09:05:56|
|5 forum posts|
Thanks to everybody who has responded. My apologies for the long gap – it was a result of leaving the office and switching the computer off for a fortnight in order to go away on holiday.
Buying another bed to modify is a good idea. It seems somewhat profligate to chop one up in order to make what I need but I appreciate the lateral thinking.
A larger lathe does seem to be the answer and I think I was being foolishly naive to think that a Myford could do this job. Whilst on holiday I went back through the original text and started laying out the process steps for each component.
I realised that the cylinder head needs to be mounted to the face plate on an offset in order to bore out the exhaust valve chamber and the flywheel also needs to be mounted on an offset to bore out the taper joints. Both of these jobs need a lot of room…
So that means using a raiser extension or raiser blocks and pushing things right to the very limit with all of the associated problems or simply admitting that I need more capacity…
Which means that thanks to all of your input on this forum I have arrived at the answer of purchasing a larger capacity Boxford lathe – or similar - as the best answer.
Thank you very much for taking the time to post the screen grab of the crankcase machining process. The book calls for a 4 jaw chuck but I think I prefer your approach. I also see somebody else has Solidworks
Thanks again to everybody who has taken the time to respond to my initial question. This is the first time I have used this forum and I really appreciate how people are willing to freely offer up their hard won knowledge.
Enjoy your day - Andy
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