Re: 9inch c to a conversion

Glen Ruch

I don't believe all parts were manufactured to thousands precision.  I believe there was a lot of hand fitting of parts in assembly.  Nor do I believe they evaluated the various tolerance stack ups.

I replaced the back gear handle on my 9 inch C workbench lathe.  I ended up re-taper reaming the handle eccentric to fit on the back gear axle.  Unfortunately when I was ready to replace the back gear assembly, it no longer fit between the eccentrics.  It currently waits for me to decide how I want to make it fit, either by shortening the back gear assembly or the eccentrics.


On 10/17/20 12:47 AM, john kling via wrote:
As I recall might  be a  difference and some filing was required to allow the gear on the different cross feed screw to mesh with that in the apron.

On Friday, October 16, 2020, 9:07:26 PM EDT, Patrick Murphy via <p.murphy22@...> wrote:

Hi  all i am in need of some info. Does anyone know if the saddle on the A and C are the  same. I am converting C to an A and am at the assembly stage and the aprin  is rubbing on the bottom .edge  of the bed its just barely rubbing on the tin cover of the worm. The lathe is a 1936 vintage and is in mint condition so I thought I would convert it to an A. I bought the parts on Ebay and was lucky that all I bought   were in very good shape. I am wondering if the bed castings on earlier lathes were a little wider at the bottom, if that is the problem I can trim the casting but I want to make sure there is no problem with the carriage and aprin


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