Good Model, perfekt Print.

I printed stl file very well but ı can not merge the parts. Can anyone help me?
Hard pass - .16mm and can’t snap a single part together easily. Good chance my newness to 3Dp is negatively impacting this but still. For such a popular model I didn’t expect so many issues.
@CassiusVetra_2759778 Think about that sentence
Super fun to make. Ive added magnet on the back to be able to hang it on my whiteboard
any way you could make the runners slightly taller it wont print for me