FILENAMES:

first1.jpg
first2.jpg

DESCRIPTION:

These are pictures of a lathe chuck backplate threading poject
undertaken by Jason North <jasonrnorth@bigfoot.com>. Jason 
provided the following description:

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These are pictures of my first successful threading project.
It is a 42 x 2 mm thread plug guage and a 5" backing plate
for the Bison 5C collet chuck, for use with my vererable
Asian 3in1 lathe-mill-drill.
The new plate is on the left, with the plug guage in the middle
and the original 4" backplate on the right.
I produced both the inner and outer threads on my 7x10 Mini-Lathe,
using Varmit Al's "GEARS.EXE" bas program to calculate the change
gear combination to produce the 2mm metric pitch. 

first1.jpg- shows the threading project
first2.jpg- shows the new plate mounted and being stepped
for the chuck.
JR
Dweller in the cellar