Nice job on the shields. I’m picking up a 3D printer soon. Might need some tips on setup.
For the tailgate setup, I cut sections out of the side and left the middle intact because I didn’t want to lose strength. I use the tailgate to stand on when accessing the roof. You are making me rethink that strategy. I used 1/8 ALU tread plate measured as close to the edges as possible, it is probably strong enough with out the middle section. let me know how strong it is when you are done. I might do the same.
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Have you kneeled on that yet?