Oh sorry, yeah you can change to whatever material you want since they all have triangle blocks. And all the cube blocks could be changed out for any other cube block too.

I wasn't saying to remove the insides, I meant like changing the material so it's round, ie engines.

If you wanted to but there are some cases where you might want to keep the insides of the circles intact.

So would you then just make all the non-curved pieces into the thing/block you want and leave the curves?

Thank you glad to help :)

sometimes even i struggle i never bother to save the good ones i make lol this does help