So in order to continue to use the Chopper, I would have to mod-
ify it. The picture below shows my modified Chopper.
I do not remember where I got the idea for the modifica-
tions to the Chopper. But this is what I did: I purchased two
square pieces of tool steel. I think they are 5/16” square,
but any size will do. Any tool supply house should be able
to furnish them. I got mine from McMaster–Carr in Chicago.
The below photograph shows a closeup of the modifications
that I made to the Chopper.
I mounted a General stainless steel HO scale ruler onto the
base of the Chopper. Notice that I put a small slit in the ruler at
the 25’ mark (black arrow above) so the razor blade would cut
the material at that exact
spot. It lines up perfectly
with the slot between the
two pieces of tool steel.
I super-glued two small
pieces of .010 “ styrene
between the two pieces of
tool steel, thus creating the
small slit for the razor blade
when closed. Notice that
the two pieces of tool steel
with a slot are mounted
up under the ruler. I used
my Dremel tool to cut out
the Chopper base. Be sure
that the cutout is perfectly
perpendicular to the ruler,
and that the chopper razor
blade falls into the slot
between the two pieces of
steel when closed. When
Windows and doors - 2
1
1. This is my Chopper that I
modified. Two pieces of tool
steel were placed on either
side of the blade, creating a
slot for the blade to rest in.
MRH-May 2014
