ProJet® MJP 300W Plus 3D Printer

The ProJet® MJP 300W Plus is a 100% wax 3D printer built for jewelers who want clean burnouts, exceptional surface quality, and reliable production. Printing directly in casting-grade wax eliminates mold-making steps and avoids ash, residue, and cracked investment issues common with resin patterns, streamlining the entire casting workflow.

Powered by advanced MultiJet Printing (MJP) technology, a larger build plate, and dramatically reduced support material, the 300W Plus delivers higher throughput, lower operating costs, and superior casting results. Its four configurable print modes let you match speed, detail, and surface quality to each job, giving you full control over both rapid prototyping and production runs.

The system provides measurable savings through reduced waste, fewer consumables, and faster turnaround. Users report greater uptime and lower maintenance than competitive systems, while smoother prints and dissolvable supports cut post-processing time. With 30–50% less gold waste and significantly faster print speeds, the 300W Plus boosts overall productivity and lowers operating costs across every build.

Features: 

·       4 Print Modes for optimized balance of speed, complexity, and surface quality.

·       Automated Build Prep for support generation and workflow efficiency with 3D Sprint® Software.

·       Exceptional Surface Quality with Surface Enhance™ to reduce polishing time and metal loss.

·       Dissolvable Supports with 60% less material used on the 300W Plus and 50% faster removal with new support structure design.

·       Up to 10× faster than similar-class printers

·       Larger Build Plate with no-calibration builds can save up to $100 per run

·       24/7 production capability with large build volume and consistent accuracy

·       Secure architecture meeting upcoming 2027 EU cybersecurity standards

·       Onsite technicians available across the United States

Core Specifications: 

• Technology: MultiJet Printing (MJP)
• Build Volume: 294 × 211 × 144 mm (11.6 × 8.3 × 5.6 in)
• Materials:
  • M2 CAST RealWax - Ruby Red 100% wax (sold separately) 
  • M2 SUW - eco-friendly, hands-free, dissolvable wax (sold separately)
• Software: 3D Sprint + cloud-based 3D Connect
• Output: Razor-sharp wax patterns with negligible residue

Print Speed / Capacity:

• Equivalent to running ~10 DLPs on one build plate
• Capable of producing 100+ parts per day with full builds
• Charts available in ppt presentation for different print settings

Consumable Consumption & Performance:

·        Burns out like standard casting wax

·        Strong enough for fine features and handling during assembly

• Less than $1 per engagement ring (approx. 2,000 rings per load)
• 10–15% wax loss typically due to positioning error
• Prints are ash-free and casting-ready (no resin burn-out issues)

Full Specifications: 

 Crated:                                   716 lb (325 kg) 

 Uncrated                                465 lb (211 kg) 

 3DSPRINT Software Easy build job set-up, submission and job queue management; Automatic part placement and build optimization tool Part stacking and nesting capability; Extensive part editing tools; Automatic support generation; Job statistics reporting tools