Can someone answer this question.
Using the 3d functions in designer:
Can we use the make pattern or other feature and save as a PTN, or is it limited to MPC format?

If saving is only to MPC, then you will need to purchase the 3d package in order to carve patterns shared, or made by others, since if you do not purchase the 3d package you can not upload to the card. But if you made your design into a PTN, then anyone can carve the pattern created.