THESE ARE MOST EASILY USED WITH A HYDRAULIC PRESS, BUT YOU CAN ALSO USE THEM IN A VISE.  PRACTICE MAKES PERFECT!  WE CUT THESE WITH OUR LASER - SO THE EDGES ARE NICE AND SMOOTH FOR PERFECT RESULTS. 
THE LASER BURNS THROUGH THE ACRYLIC SO THERE MAYBE SOME SLIGHT DISCOLORATION ON THE CLEAR ACRYLIC - THIS DOES NOT AFFECT HOW THE DIES WORK.

Please check out Barrie Edwards New Tutorial on using these dies without a press or vice!  www.barrieedwards.com 

https://www.etsy.com/ca/listing/638380499/doming-metal-with-silhouette-dies-the?ref=hp_rf-1

We are back into production with our Silhouette Dies - We are using heavier 3/8" Acrylic and the new laser is doing a beautiful job with these!!