Templates for the firewall
surrounding
panels are traced on tracing paper. |
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The drawn template is cut out and
tested
on the body, where it is suposed to fit. |
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Now the same profile is carried on
the
metal and cut. |
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The metal panel is bent to profile by
hand and test-fitted. The same procedure is done for both sides. |
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The panels are point-soldered to the
body
to secure in place. The main soldering will be done on the back side. |
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The back side is fully soldered. |
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The firewall is traced on paper and
carried
on to metal and cut in the same manners described above. |
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After a couple of test-fittings and
necessary
trimmings, the firewall is soldered into place. |
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Finishing is with Dremel again, but
with
a metal grinding tip. You have to press against solder in this
situation
and regular cutting tip will immediately break into pieces. You may use
a thick grinding tip, but the metal tip has a flexibility so that it
will
not dive into metal if pressed excessively. So you can have a smoother
finish. |
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Here the parts are finished smooth. |
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The two internal panels that will fit
behind the door in the cockpit are prepared by paper-tracing and
carrying
on the metal. The bends are made by pliers. |
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Solder was applied at the meeting
edges
but the soldering iron proved to be weak for this area, so the solder
was
melted along the seam with the aid of a torch. Parts should be held
close
with some means as shown. |
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OOOPS ! The flame of the
torch was
too heavy for the poor metal. You see how the metal shrinked? There are
two ways to repair the situation: Either fill more solder in the cavity
created, or leave it to the time of the polyester putty. I preferred
the
second choice. |
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The two internal panels are now
soldered
into place and ground smooth. |
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