Re: Drive sprocket cutting jig [TANKS]

[Rick v100 <rickv100-at-yahoo.com>]

Chris, 

Nice work. 

There used to be a picture on the AFV Interiors site
of Sherman production on it was a photo of sprockets
being made. The sprockets were ganged together and
milled in a similar jig. 

Rick 


--- chris barthelson <barthelson88-at-hotmail.com> wrote:


---------------------------------

Hi all,      I just finished building a jig to cut out
sprockets and thought I would share with the group.
Pic 1, it is made out of mdf because thats what I had
and it's cheap. First you make a wheel blank, then you
insert it into the jig, then you clamp it with the
small screw. Next you run the router across the top
using a 3/8" bit which cuts a grove (pic 2 the fence
is not on the jig yet as I don't have my router) Then
you remove the screw and rotate the wheel 180 degrees
so the grove that was just cut lines up with the hole
at the bottom insert a dowel, run the router across
again then rotate the wheel 30 degrees so the first
grove lines up with the next hole, insert a dowel run
the router across again and repeat until your done.
Pic 3 shows the wood that will be removed. After all
this you sand the wood between the gaps flat and
insert the teeth (3/8 plywood) then your
done.Chris"over
it"Barthelson_________________________________________________________________REALESTATE:
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