Custom model making

export as json file

didn't work like what?

if you're talking about not being able to be implemented in MCreator:

• at the creation of the model, select json (not sure what it's called, block/item model or something)
• after modelling it, export it as json and make sure the extension is json.

if you're talking about broken-looking model or confusing inputs:

• make sure you separate the model into bones (or groups, but i like bones better), then name them according to the parts.
• the texture inputs in MCreator should now have your bones' names, select the textures you want for each bone

have you selected transparency as cutout-mipped