Mass Additive

Additive Manufacturing, Custom 3D Printing, Prototyping & Small-Batch Production

Mass Additive, LLC is your friendly, maker-first partner for turning wild ideas into real objects — no project too small, no dream too weird. From one-off cosplay pieces and Etsy runs to startup prototypes, industrial spares, and hard-to-find automotive & motorsport parts, we love helping independent creators, hobbyists, inventors, YouTubers, car builders, and small businesses bring their visions to life with professional-grade 3D printing.

We speak fluent “maker”: whether you have a rough sketch on a napkin, a half-finished Fusion 360 file, a SolidWorks assembly, an Onshape project, a broken OEM bracket you need reverse-engineered, or just a photo of something you wish existed, we’re here to make it happen without gatekeeping or minimum-order nonsense.

Services — built for makers AND companies

• Maker-Friendly Design Help: Stuck on a model? Send us your idea (even hand-drawn!) and our team — daily drivers of SolidWorks and Onshape — will clean it up, redesign it from scratch, reverse-engineer that cracked 30-year-old plastic clip, or fix tolerances so it prints perfectly first try. Affordable rates that won’t scare off indie creators.
• One-Offs & Personal Projects Welcome: Cosplay props, replacement knobs, custom enclosures — if you can dream it, we’ll print it. No judgmental looks, just excitement.
• Automotive & Motorsport Parts: Discontinued interior trim, dash knobs, HVAC vent replacements, track-day brake ducting, shift knobs, battery hold-downs, turbo inlet adapters, or one-off prototypes for your race car or resto-mod — we live for this stuff.
• Rapid Prototyping for Inventors: Test your gadget, enclosure, or new intake design fast and affordably before committing to expensive tooling.
• Small-Batch & Etsy Runs: Need 10, 50, or 200 of something? We make low-volume production painless and cost-effective.
• Material Magic: Heat-resistant resins up to 225 °C, carbon-fiber nylon, tough ABS-like materials, flexible TPU for seals and bushings, glow-in-the-dark, woodfill — whatever your project demands, we’ve got it.
• Equipment Advice for Hobbyists: Thinking about buying your own printer? We’ll give honest, no-upsell recommendations and print your early designs while you wait for it to arrive.

Our small, passionate team lives for this stuff. We’re makers ourselves (you’ll usually find us in SolidWorks or Onshape at 2 a.m., too), so we get the late-night “what if…” moments, the thrill of holding your creation for the first time, and the relief of finally replacing that unobtainable $3 plastic part that’s holding up a $30k build. Big corporations are welcome, but individuals, small creators, and car enthusiasts will always have a special place here — no bureaucracy, no red tape, just fast quotes, clear communication, and parts that make you grin when you open the box.

Categories

• Prototypes & Mockups
• Automotive & Motorsport Parts
• Cosplay & Costume Parts
• Etsy & Small-Batch Products
• Replacement & Hard-to-Find Parts
• Tools, Jigs & Workshop Helpers
• Home & Office Gadgets
• Wearables & Jewelry
• Custom Industrial Parts

Our Current Print Farm
FDM/FFF: Bambu Lab H2D, H2S, X1E, X1C, P1S, Creality K2 Plus, Elegoo Centauri Carbon
Resin (SLA/MSLA): Formlabs Form 4, Nexa3D XiP, Elegoo Saturn 4 Ultra 12K

That mix gives us everything from lightning-fast multicolor, ABS/ASA/CF-nylon to ultra-precise, high-temp resin parts — so whatever your project needs, we’ve got the right machine ready to go.

Come build with us — whether it’s your first idea, your five-hundredth print, or that one impossible car part you’ve been hunting for years, we’ve got your back. Drop us your CAD model, SolidWorks .SLDPRT, Onshape link, a photo of the broken part, or just a voice note — we’re ready when you are.