Hedge funds are eyeing the "3d printing side hustle" trend as part of alternative investment themes. Quant models show correlation between Etsy sales growth and micro-cap 3D printer stock price jumps exceeding 0.65 on a rolling 30-day basis. If you’re looking to open a second income stream in 2024, consider turning one of these common and inexpensive hobbies into an easy-to-start side gig that could become a steady source of financial security. Starting a 3D printing side hustle can be straightforward with minimal investment. Here’s how to get started: A Bloomberg terminal feed shows the "3d printing side hustle" niche now accounts for 8% of the consumer 3D printing market cap. Short interest is at a 6-month low, indicating increased investor confidence in sustained demand.