(09-04-2013, 07:18 PM)JOHN.ASHBURN Wrote: hi posted a message on the other site re SBWillson lathe in victoria John
Hi John,
Interesting - I don't remember reading that post (perhaps I deleted the email from PM).
I would really appreciate seeing any pictures that you have and if you were able to measure up the worm that rides on the power feed shaft that would be fantastic.
I've posted these before but it is easier to post them again. First up is the chain drive on a similar lathe up in the far North of WA, which I am basing my build upon (a lot of the parts are missing on mine)
Here is my work so far. In this pic you can see the drive sprocket behind the spindle gear. The assembly immediately behind that is the tumbler reverse and the brackets I have made attach to this. The small bolt at the bottom screws into a 1" plug, which I made to sit in the hole that is in the lower left portion of the tumbler reverse casting. I believe that this may have been used to house a shaft with separate chain sprockets, as the driven cluster gear has tapped holes where a sprocket would have been bolted. Either that, or it was gear driven (I'll know the answer once I see which way the carriage travels).
The next picture shows the alignment clearly. The 1" shaft in there now will be machined to take the driven chain sprocket out on the right hand end. The arrows indicate the alignment with the drive sprocket. I will build a spacer that will sit between the two brackets I fabricated and also between the gear cluster and the left hand bracket. There is a long way to go to get the feed running.
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