I know my photos are gone thanks to the new owners of Photobucket, but I think the best way to build the ML is to use the included ball and tube hinges and make the rear bulkhead removable. I did mine that way so that I would have access to replace rubber bands. Sometimes springs end up stretching too, so I'd still make the bulkhead removable. Mars Landers should have four balls.

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I love sanding.