In our last episode, I posted about an alternative source to Campbell's
for scale corrugated metal sheets, as well as a couple of DIY ideas for
making the stuff.
Well, based on what I saw here:
I have successfully done a proof-of-concept test of this method.
Rather than the rather primitive use of one's fingers to impress the
aluminum foil, I built a little rig, using the handles of two cheap
(Chinese) jeweler's screwdrivers as crimping rollers. See a sketch of
the rig here:
To make it, I picked two expendable screwdrivers that seemed to have the
same "pitch" of knurling on their handles. (They weren't even exactly
the same size, but pretty close.) I removed the thumbrests from both by
grinding off the attachment rivet. Then I built a little plywood and
wood box, with carefully-cut holes in the sides to hold both
screwdrivers placed together handle-to-handle so that the knurlings
meshed. I cut two bands from sheet brass to act as hole inserts and
bearings. Put the thing together, made a primitive crank from a piece of
scrap metal, and voila! the thing actually made a very nice-looking
strip of embossed tinfoil (aluminum foil). In fact, it looks *almost* as
good as the Campbell's stuff!
Still a work in progress
1. I tried to find the heavy aluminum foil but no luck yet. Note to
those interested in trying this: I bought some foil that was labeled
"heavy duty", but it turned out to be about as thin as the regular
stuff. Definitely too flimsy to use on structures, since it's so easy to
crinkle and really hard to handle. I'm looking for the stuff that's
about halfway between regular tinfoil and the aluminum sheet used in
throwaway pie tins, etc. Anyone know where to get this stuff? I'm going
to widen my search to other supermarkets.
2. My screwdrivers are pretty small. It would be better to use
larger-diameter ones. These screwdrivers can be bought in sets for a
buck at dollar stores, so I'm looking for a better set. The larger ones
would probably also be longer, making it possible to make wider sheets.
My rig makes sheets a little less than 2" wide, which is actually fine
for most HO scale uses.
- posted 11 years ago