If you’re helpless to know the difference, then check out [Eric Strebel]’s 9-minute masterclass teaser video on making a two-part mold for resin casting, which is also embedded below.

Resin casting lets you produce parts that would ... There will also be some flashing after the pour is complete. The better you make your mold, the less flashing there will be.

Students will be assigned exercises on basic mold-making principles, beginning with piece mold construction, continuing to applications and uses of various flexible molding techniques and ending with ...