Lulim Jewelry
"A custom jewelry business using 3D printing and traditional casting to create personalized rings and pendants with fingerprints, signatures, and engravings, sold on Etsy and Shopify."
Marketing Channels
Etsy
Sells custom jewelry on Etsy, leveraging the platform's built-in marketplace traffic for personalized/handmade goods
Shopify Website
Operates a direct-to-consumer Shopify store at lulimjewelry.com in addition to Etsy
Hacker News
Shared the project in the HN side project thread, generating interest and follow-up questions
Growth Levers
- Expand product line to ornaments and pendants — suggested by a commenter interested in kids' artwork as physical keepsakes
- Integrate LLM into the ring design process for AI-assisted customization (creator is already working on this)
- Leverage kids' handwriting and drawings as custom design inputs for a broader emotional gift market
- Create content showcasing the 3D printing to casting pipeline — the tech story is compelling for both SEO and social media
- Explore international shipping with proper commercial invoicing (commercialinvoice.app was suggested in thread)
- Scale the automated pipeline to reduce per-unit design time and increase order throughput
First Customer Strategy
The creator leveraged a 3D printing background to identify the sweet spot for 3D printed products: small, high value, and custom. The jewelry industry was a natural fit since it already had significant 3D printer adoption. Built a custom pipeline using fabric.js, Flask, and Blender to automate the design-to-manufacturing workflow.
Pricing Insight
The business generates enough profit to pay the creator's mom and sister for customer support and shipping help. The high-value, custom nature of jewelry allows premium pricing. The casting process (3D print wax, cast in precious metals) combines modern manufacturing with traditional techniques, keeping the product perceived as artisanal.
New Market Opportunities
- 3D printed ornaments from kids' artwork Parents want to convert kids' drawings and handwriting into durable ornaments; the creator confirmed doing this for rings and pendants but not ornament-sized items yet
- International customs/shipping tools Suggested commercialinvoice.app for generating commercial invoices to ensure smooth customs clearance for shipped jewelry
Key Takeaways
- • The sweet spot for 3D printed products is small, high value, and custom — jewelry fits this perfectly
- • Building an automated design-to-manufacturing pipeline (fabric.js, Flask, Blender) is a key competitive moat that reduces manual work per order
- • Employing family members for support and shipping keeps overhead low while distributing the workload
- • Dual-channel selling (Etsy + Shopify) diversifies revenue and reduces platform dependency
- • Personalized, emotionally meaningful products (fingerprints, signatures) command premium prices and generate strong word-of-mouth
- • LLM integration for design assistance represents the next evolution of custom product workflows
Sentiment Analysis
2 Pos / 1 NeuNotable Quotes
"I've definitely taken kids handwriting/drawings and put them on rings or pendants before. Nothing as large as a standard ornament though. — doctoboggan"
"Ornaments? Parents keep asking for my kid's to 'create' an ornament. The fun of doing on paper is obviously great, but it'd be neat to convert it into something more durable too. — scottishbee"
"Then you should use my commercialinvoice.app to generate commercial invoices. To have a smooth customs clearance. — bilinguliar"
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