QC Gearbox on Craftsman 618??

[clif]

I do not understand why the QCGB was not offered as a option or add on.

The 10-12 " QCGB used the same gearing and other parts. These lathes were used by smal;ler shops for work,

Heck I even got a 3981 lathe with a Corning Glass Works tag attached to it,
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A friend bought a 3986 from a man who got his from Kroger warehouse. he said they used it to turn tow motor armatures.

The 6-18 would have needed a complete qcgb all it's own, since it uses much smaller change gears than the 10-12 inch lathes do. 24 DP gears on the 6 " vs 16 DP gears on the larger lathes

Quite an expense for a lathe probably not seen as getting the demand to recoup the costs of tooling up to create the smaller version.

 

[wa5cab]

I think the same thing. A scaled down version to fit the 6" would likely have cost as much to make as the larger one. And the selling price might have been higher than that for the lathe itself. So very few would likely have been sold.

 

[clif]

I have the feeling you opened a "pandora's" box with the copies of plans you have.

No problem, I'm just forwarding the same favor that was given to me.

 

[Vacuum]

Thanks to Clif and everyone who commented on this. Boy what a project this is going to be!