Boiler (Second Version)
After some more research, I realized I would rather model the version with
the jacketed smokebox instead of the exposed riveted version. To
that end, I set aside the very from the previous photos, and started
over. Here are some photos from the newer version
Here's a shot of the new boiler on my Sherline mill. The setup here
was for cutting the correct angle for the backhead. This piece of tube
stock was longer than the one originally used. I decided to have the boiler
tube go right through the cab to the backhead as per the prototype instead of
up to the cab as with the original Bachmann model.
Here's a photo of the new boiler. The firebox has been attached, as has
the support for the backhead. This still needs one layer of .010 styrene
added all around. It also needs the riveted layer around the
firebox. To get this to fit around the existing mechanism, some
compromises had to be made, but I think the overall effect is still quite
nice. On the next one I put together, I am going to use thin super glue
to join the laminated layers of styrene instead of solvent
cement. The reason is the solvent cement really does a job on .010"
styrene, causing warps and indentations that have to be filled and
sanded. Thicker styrene is difficult to wrap around the boiler tube.
As you can tell from my workbench, it was a busy day today :-)
Be sure to sign my guestbook
.while you're here :-)
As of August 9, 2004, I had taken a different approach for the domes and
boiler. I am converting my Sherline mill to a CNC mill. That will enable me to
create the profiles in 3ds Max (which I have) or Rhino (which I may get) and
then machine them in Freeman machinable wax. From there I will be able to
create resin copies for my own use and for sale. More updates to follow.
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