I haven’t made that part but I made a Lego brick 10x normal size Measured using digital calipers and drawn in Vcarve pro
Only tip I have for you is start by making a drawing and start to put the dimensions on it. Than scale up the dimensions you want to make it. I think we all have are own thought process to accomplish what you want to do.
Cheers and Happy Carving
Joe
Thanks for the info. Will give it a try.