I've been working in ID adjacent fields that are not as easy to implement into a portfolio... so here are the industries, and a little sneak peak of what I've done
Marketing
Environmental Product Renders
Boosting customer engagement and website hits with environmental product renders
Design Engineering / Manufacturing
DFM - Metal Products
Designing, engineering, and drafting: cast, machined, and formed sheet metal products
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Materials & manufacturing process research
Fabrication
Wood, Metal, & Additive
Mill, CNC, metal forming, welding, resin casting, and 3D printing hands on work