This is just one example but you could do this to every single part such as shoulders, biceps, forearms, chest, back, abs, cod, thighs, shins, boots and more.
If you are unsure about the scale, please do not print the full piece from the begining. There is a way to save filament and test things out with minimal cost and time.
Helmets need to be sized bigger especially if you are going to install hinges or servo motors inside. Our models are mostly scaled for a 6 foot tall 3D avatar but because we followed the proportions of a CGI model to avoid a bubble head look, in most cases, you can increase the scale by 5 ~ 10%. The following test will get you the right size so that your helmet will fit perfectly.
Once you scale the helmet to your size, you can use that helmet as a guide for future helmets. Simply open up another helmet that you need to scale and put it next to the "perfect fitting" helmet. Use the "perfect fitting" helmet as a guide to scale up/down the other helmet to the same size.
Happy printing! Please let us know if you you have any questions.
Software: Autodesk Netfabb