How to Make Blow Mold of Drinking Bottle
After making a drawing of a drinking bottle ( https://youtu.be/2p93ExMRKjI ), this video is to make construction of the bottle mold. Consists of two plates, 'body and bottom'. Given that the bottom of the bottle goes deeper, you need a bottom so it doesn't "undercut".
Youtube : https://www.youtube.com/@molding