this is a fun model that is super satisfying to make
stop, before you assemble add a piece of TPU in the hole on the top of the tank body so that when it and the part that rotates come in to contact it makes a satisfying “click”every time you tern it! see pics
I haven't tested these on my model but I think they will work? if you can just use lego brand:)
wheels https://www.thingiverse.com/thing:3868562
wheel mounting pins https://www.thingiverse.com/thing:2225043
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