The Lucky Printer

Upload a 3D model, get an exact price in minutes

Functional parts in black PETG and black TPU, printed on our print farm in Massachusetts. Your price comes from slicing your actual file, not from a guess.

Get an instant quote How it works
  • Exact price from a real sliceOur print farm's PC slices your file with real print settings.
  • Card held, not chargedYou pay only after Lucky approves your order.
  • Every part checked by a personLucky looks at each order before it prints.

How it works

Four steps from file to part. You see the price before you pay anything.

  1. Upload

    Drop in STL, 3MF or OBJ files. You see the size, a 3D preview and an instant estimate right away.

  2. Exact price from a real slice

    Our print farm's PC slices your file with the real print settings, usually in 1-3 minutes.

  3. Checkout: card held, not charged

    Pay securely with Stripe. Your card is authorized only; nothing is charged yet.

  4. Lucky checks and prints

    Lucky reviews every order. Once approved, your card is charged and the part is printed and shipped.

  • Black PETG: tough, slightly flexible, good heat resistance. Right for most functional parts.
  • Black TPU: flexible and rubber-like, for gaskets, bumpers, grips and covers.
  • Parts up to 252 x 252 x 270 mm.
  • STL, 3MF and OBJ files.

What we don't print

  • Firearms, firearm parts or weapon accessories.
  • Logos, emblems, badges or licensed characters without the rights to them.
  • Safety-critical parts, such as brake, steering or seat-belt parts, helmets, child seats or climbing gear.

From eBay buyers

Selected comments from our eBay feedback, quoted exactly as written.

  • Great experience with this 3D printing seller! The seller gave me several material options and explained how each one would fit my specific use case as well as the cost differences. The pricing overall was very reasonable compared to other services I’ve seen, and the final product turned out to be high quality, durable, and really well made. Definitely recommend!

    eBay buyer, Sep 29, 2025

  • I reached out to this business for a custom threaded shift knob adapter for my AB9 and they were extremely helpful. Priced it very well, and printed and shipped it super fast. Arrived in perfect condition. Quality is great, and appearance is top notch. Would highly recommend them!

    eBay buyer, Nov 1, 2025

  • Looks better than the pictures, much more professional looking surface finish.

    eBay buyer, Nov 15, 2025

  • Glad you are putting durability back into what the OEM took out. Value is great.

    eBay buyer, Dec 1, 2025

  • Love it! Great extreme HD 3D dual fan shroud made with high quality material with my specific measurements.

    eBay buyer, Nov 14, 2025

  • Great experience with this seller. Communication, shipping, and the item were all top tier. This 3D printed part definitely solved an original engineering issue with an otherwise great car.

    eBay buyer, Jun 5, 2026

  • Worth it! Made correctly and fit like the ones from the factory.

    eBay buyer, Aug 26, 2026

  • Wow!!! One of the best buying experiences I have had on the site! Listened to feedback on product and updated the design to improve it! Super seller!!!

    eBay buyer, Nov 13, 2025

Feedback score 3,197 - 99.7% positive over the last 12 months (as of Nov 10, 2026)

Our eBay feedback: read all ratings

Shop elsewhere

Ready-made parts from our catalog:

Our eBay store: shop the parts

Our Etsy shop: browse the shop

Contact

Questions about a file, a material or an order? Lucky reads every email.

lucky@theluckyprinter.com