Precision 3D printed parts for builders and collectors.
Custom 3D Parts
About KNJ 3D Printing

Small Parts. Big Detail. Built for Custom Projects.

KNJ 3D Printing is focused on detailed automotive-style parts, custom model components, and hard-to-find pieces that help builders finish their projects with more personality and precision.

Talk About a Custom Part
Our Story

Designed for the builders who notice the tiny things.

A build often comes down to the details: the wheel style, the engine look, the accessory that makes it feel complete. Our goal is to make those detail parts easier to find, easier to request, and easier to add to your project.

What We Create

Parts with purpose, not filler.

Engines

Engines

Carburetors

Carburetors

Wheels

Wheels

Custom Requests

Send a sketch, reference photo, dimensions, or product idea.

How We Work

A simple path from idea to printed part.

01

Browse or Request

Choose from existing product categories or send a custom part request.

02

Review the Details

We check the idea, product direction, or reference details before moving ahead.

03

Print with Purpose

The part is prepared with the project use and visual detail in mind.

04

Ready for Your Build

Your order is packed and sent out so it can become part of the final build.

Have an idea?

Let’s turn it into a custom 3D printed part.

Start a Request
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