But I'd like to keep the image size (64x64) relative to the default block size (16x16), which would be four blocks across. So I don't want to squeeze the image in order for it to fit three blocks when it's actually supposed to be four. Is the max limit always three blocks in each direction?

When I try exporting a 64x64 image it gives me this error:

1 element(s) have not been exported because of invalid position (outside authorized Minecraft bounds).

Thanks! I got it working, but it seems like 64x64 is too big to export. Is the max limit locked to 48x48?

Title says it all. Whenever I try to import a .png or .vox file it gets placed only inside the block. I want it to keep the correct size while maintaining the 16x16 block, so the model should be going out of the block. Any way to do this? Thanks in advance!