December 19, 2025
Description
With permission from ToyMakr3D and Printformers to remix and share for non-commercial purposes, I present my Transformers Cosplay Helmets and masks! These were created using The Helmetizer model I made to use as a negative volume in Prusa Slicer. With only some scaling and moving, you can turn any mesh into a cosplay helmet. I love Transformers, so dove into making some helmets of characters that have never been done by Hasbro/Takara.
Helmets with faces are generally designed to print separately so that the face can be inserted into the helmet after the helmet is donned. This is done so that the mask can be closer to the face and the helmet can be smaller overall. In some cases, the shape of the character's head/helmet requires it to be quite large, and so the face is part of the helmet, or can be printed separately and then glued in place rather than inserted every time you put it on.
When possible, ventilation has been added to the nose and/or mouth, but take care when wearing any of them that you have ample air flow.
All files should be printed in the provided orientation. Supports may be a good idea for some of the steep overhangs and bridges, but most can be printed with no support and cleaned up prior to use. A 5% rectilinear infill and two walls/perimeters has worked well for me and provided good wall and top layer support without taking too much material, resulting in a helmet that is not very heavy, usually less than a kilo.
There will be some corners and edges that are not ideal. This is because the original head sculpts were never intended for this purpose, and editing the details was beyond my ability of working with meshes. Careful use of craft blades, saws, and sandpaper should take care of any comfort issues.
Not all of these models have been printed and tested. I've made three so far, and refined my Helmetizer model each time. I'm confident that the provided files will print easily with minimal post processing needed, and that they will fit most heads, up to a little larger than average. My noggin is about 25" (63.5cm) in diameter, which you can compare to yours to see if the helmet needs to scale up or down. I'd recommend leaving it loose and adding padding as needed, or scale it up if your head is larger.
The models provided are listed below. These are links to the ORIGINAL models, not the helmets. Go to the files page to download the helmet models.
Creating any lenses for the eyes will be a project for you to work on. That said, my son found these nifty retro-future sunglasses that can be worn inside some of the helmets. I also found some light blue clear vinyl “by the foot” at my nearest crafts store (Michael's) that is working well for putting behind the eyes of masks with faces and eyes rather than visors.
License:
Creative Commons — Attribution — Noncommercial — NoDerivatives
MrFlippant
