3D Printed Tools and Useful Prints
Updated November 13, 2026
Once you can print reliably, the best next step is printing things that earn their keep. 3D printed tools, jigs, fixtures, organizers, and repair parts, are where a printer stops being a toy and starts solving real problems. This guide covers what's worth printing, what prints well versus badly, and how making tools builds the exact skills you need to prototype a product.
Why printed tools are so useful
Jig or fixture: a custom aid that holds a part or guides a tool in exactly the right place while you work. Jigs and fixtures are among the most valuable things to 3D print, because they're made to your specific task.
The magic of a printed tool is that it's custom. Off-the-shelf tools are made for the average job; a printed one is made for your job, with the exact dimensions, angles, and holder you need. That's why jigs and fixtures are the classic win: a bracket that positions a part for drilling, a guide that keeps a cut straight, a holder that frees your hands. They're cheap, fast, and tailored.
What's worth printing
- Jigs and fixtures: drilling guides, alignment blocks, assembly fixtures, soldering helpers.
- Organizers and holders: tool holders, drawer dividers, cable management, wall mounts.
- Repair and replacement parts: the knob, clip, bracket, or spacer that broke and isn't sold anymore.
- Knobs, handles, and adapters: custom grips and connectors between things that don't normally fit.
- Measuring and alignment aids: gauges, spacers, and templates.
Making printed tools actually strong
A printed tool is only as good as how you make it. A few rules:
- Material: PLA is stiff and fine for light-duty jigs and organizers; step up to PETG or nylon for toughness, heat, or impact.
- Orientation: FDM parts are weakest between layers, so orient the tool so forces run along the layers, not across them.
- Walls and infill: more walls add more strength than more infill; bump both up for load-bearing tools.
And know the limits: skip anything that needs high heat, heavy continuous load, or a sharp metal cutting edge. A printed tool wins on custom shape, not on matching hardened steel.
Printing tools builds product skills
Here's the part that matters if you want to make a product: designing and printing a tool is the same skill set as prototyping. You model it in CAD, slice it, dial in tolerances so parts fit, and run the model-print-learn-adjust loop until it works. Every jig you design makes you better at turning an idea into a real part. And when you start producing a product in small batches, printed jigs and fixtures help you make it consistently.
The short version
The most useful things to print are custom tools: jigs, fixtures, organizers, and repair parts. Choose the right material and orientation for strength, skip the high-heat and high-load jobs, and treat every tool as practice for prototyping. To sharpen the basics, see 3D printing for beginners, and to turn the skill into a product, how to manufacture a product.
Working on your own product? The idea-to-shelf program is the step-by-step system behind these guides, from idea and prototype through manufacturing and launch.
Frequently asked questions
- What tools can you 3D print?
- Plenty of practical ones: jigs and fixtures that hold parts while you work, drilling and cutting guides, custom organizers and holders, knobs and handles, measuring and alignment aids, and simple hand tools. Printed tools shine when they're custom to your exact task, which is where buying off the shelf falls short.
- Are 3D printed tools strong enough to be useful?
- For many jobs, yes. PLA is stiff and fine for jigs, fixtures, organizers, and light-duty tools. For parts under real stress, heat, or impact, use a tougher material like PETG or nylon, add more walls and infill, and orient the part so loads run along the layers, not across them. Printed tools aren't a replacement for hardened steel, but they're excellent for custom, low-stress jobs.
- What shouldn't I 3D print?
- Anything that must take high heat, heavy continuous load, or sharp cutting edges in metal. A printed wrench or blade won't match a real one. Printing wins on custom geometry and quick iteration, not on raw strength, so pick jobs where a tailored shape matters more than maximum durability.
- How do printed tools help me build a product?
- They're the same skill as prototyping. Designing and printing a jig teaches you CAD, slicing, tolerances, and the model-print-learn-adjust loop, exactly what you'll use to prototype a real product. Jigs and fixtures also help you make your product consistently once you're producing small batches.
Keep learning
Ready to actually build it?
HANNAH.MFG teaches the complete path, from idea and prototype to manufacturing and launch, taught by someone who has actually shipped product.
See the programsNot ready to join today?
Join our mailing list to learn more about the program, and how it can help you bring your product to life, learn product development from the ground up, or advance a career that requires it.
