David Krammer combines 3D printing and vacuum forming for a chocolatey thumbs up

Austrian developer and designer David Krammer loves making things with his 3D printer. Whether he’s crafting Batman masks for his cats or designing 3D printed pool slippers, his work is always full of surprise and humour. David’s inventive spirit shines through in every project and in this video, he showed how fun and versatile vacuum forming can be when paired with 3D printing.

Using his MY YARD FORMART S desktop vacuum former, David 3D printed a model of a hand giving a thumbs-up, then used it as the base for creating a custom chocolate mould. By heating a PET sheet and vacuum forming it over the 3D printed hand, he produced a detailed, food-safe mould ready to be filled with chocolate.

After the plastic cooled, David poured chocolate into the mould and let it set, resulting in a deliciously creative treat: a chocolate thumbs-up!

If you’re interested in making your own chocolate moulds, PET is an ideal material. It’s strong enough to maintain the mould’s structure during the pouring and cooling process, yet flexible enough to allow easy removal of the chocolate without cracking or damaging the shape. This makes it a favourite among chocolatiers and makers who enjoy combining edible art with fabrication techniques like vacuum forming.

David’s project is a great example of how vacuum forming and 3D printing can be used together for fun, creative, and even tasty results. From food design to cosplay props, the possibilities are endless when these tools are combined.

To explore more of David Krammer’s inventive work, be sure to follow him on Instagram for updates on his latest creations.

And if you're interested in trying your hand at chocolate moulding, don't miss our guide to making your own chocolate moulds.

Machines

• 3D printer
• MY YARD FORMART S vacuum former

Materials

• 3D printing filament or resin
• PET sheet