Set the tunnel into the flat areas on the top and middle wrap and check the fit.
GOTCHA: On my two builds, the recesses under the tunnel weren't long enough to fit against the wrap edges.
Set the tunnel in place and mark the overlap. After checking, 1/16" trimmed off the top and 1/32" from the bottom.
This is the top underside of the long tunnel.
Using a single edge razor blade, a 1/16" tall sliver was cut off, down to the pencil line made earlier.
The same blade was used to cut 1/32" from the lower recess.
The fit of the smaller tunnel is fine, no trimming needed.
The primer/filler was scraped away from the two tunnels glue area.
Fabri-Tac glue was used to glue the tunnels on
On the right side you can see the line of glue down the center of the tunnel.
Masking tape was applied to hold both tunnels down while the glue dried.
Build time:
Fit Tunnel & Glue: 20 minutes
Total build time so far: 12 hours, 25 minutes
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