3D Printed Tools for Your Workshop: 15 Practical Prints

The most common criticism of 3D printing goes something like this: "Cool, another decorative Pikachu. When does it make something useful?" Fair question. The answer is: right now, constantly, if you know what to print. My workshop is filled with 3D-printed tools, jigs, organizers, and fixtures that I use daily-not display pieces, but functional tools that solve real problems and replace things I'd otherwise buy for $10–50 each.

After two years of printing functional parts, I've narrowed my rotation down to the 15 prints that deliver the most value. These aren't theoretical-every item on this list has been in active use in my workshop for at least three months, stress-tested and revised. Here's what's worth your filament.

Organization and Storage

1. Gridfinity baseplate and bins: If you print one organizational system, make it Gridfinity. It's an open-source modular storage system where standardized baseplates (attached to shelves, drawers, or walls) accept snap-in bins of various sizes. I've printed over 40 Gridfinity bins for screws, nozzles, Allen keys, drill bits, and electronics components. The ecosystem on Printables has thousands of specialized bin designs-there's a bin shaped for every tool you own. Print in PLA at 0.2 mm layer height with 3 walls. Budget about 2 hours per baseplate and 30–60 minutes per bin.

2. Pegboard hooks and holders: Standard pegboard hooks are overpriced and limited. 3D-printed pegboard accessories fit standard 25 mm (1-inch) spacing and can be designed for specific tools. I've printed custom holders for my calipers, flush cutters, soldering iron, and even a holder that fits my specific multimeter model. PLA is fine for lightweight tools; use PETG for heavy items like drills or clamps that stress the hook.

3. Cable management clips: Parametric cable clips sized for exact wire diameters. I printed clips for my workbench power cables (14 AWG), USB cables, and pneumatic tubing. Each clip friction-fits onto the edge of the bench and holds the cable at a specific routing point. Print in PETG for durability and slight flex. Total print time for a set of 20 clips: about 90 minutes.

Measurement and Marking

4. Center-finding tool: A V-shaped jig that lets you find the center of round stock by drawing two intersecting lines from different positions. Drop a dowel or pipe into the V, draw a line along the straight edge, rotate the workpiece, draw again-the intersection is dead center. This is a classic machinist tool that costs $15–25 in metal but prints perfectly in PLA in 45 minutes. Accuracy is within 0.5 mm on stock up to 50 mm diameter, which is plenty for woodworking and hobby metalwork.

5. Drill depth stop collars: Slip-on collars that clamp to a drill bit at a specific depth. Print a set in 1 mm increments from 5 mm to 30 mm and you'll never drill too deep again. Use PETG for the clamping force-PLA can crack when you tighten the set screw. Each collar takes about 8 minutes to print. I keep a full set in a Gridfinity bin next to my drill press.

6. Angle gauges and protractors: A simple 45/90-degree square for checking miter cuts, printed in PLA with 100% infill for rigidity. Not precise enough for fine woodworking (injection-molded plastic squares are better for that), but perfectly adequate for checking rough cuts, setting up jigs, and verifying print bed squareness on your 3D printer.

Clamping and Fixturing

7. Spring clamps: Printed-in-place spring clamps using a living hinge design. These flex open when squeezed and grip when released-just like metal spring clamps but lighter and customizable in size. Print in PETG (PLA snaps at the hinge after repeated use). The opening force depends on the hinge thickness-I've found 1.2 mm PETG gives a firm grip without being too stiff to open one-handed. Print time: 25 minutes each.

8. Corner clamps: 90-degree corner clamps for glue-ups. Two arms hold workpieces at a perfect right angle while glue dries. Not strong enough for heavy hardwood-for that you need metal clamps-but perfect for picture frames, small boxes, and PCB enclosures. Print in PLA with 40% infill. I've printed 8 of these and use them in sets of 4 for rectangular glue-ups.

9. Bench vise soft jaws: Custom soft jaws for your bench vise that won't mar the workpiece. Model the jaw face to match the profile of what you're clamping-flat for sheet material, V-shaped for round stock, serrated for grip on rough surfaces. Print in TPU for maximum grip without marring, or PETG for rigidity. These are consumable-they wear out and you print new ones. That's a feature, not a bug.

Specialized Workshop Jigs

10. Soldering helping hands: Articulated arms with alligator clip holders, mounted on a heavy weighted base. The ball-socket joint design holds position without screws. I've gone through three iterations of this design, and the current version with 15 mm ball joints in PETG holds circuit boards perfectly steady during soldering. The base is a hollow shell filled with pennies or lead shot for stability. Total print time: about 3 hours for the full assembly.

11. Filament spool roller: A bearing-mounted spool holder that sits on your workbench for feeding filament to your printer smoothly. Two 608 skateboard bearings ($2 for a 10-pack) press into printed bearing holders, and the spool sits on printed rollers. Eliminates filament tangle from spools sitting on the floor or stacked on a shelf. Silky smooth rotation means your extruder pulls filament without resistance.

12. Sanding block set: Contoured sanding blocks for detail work. Print a flat block (for surfaces), a concave block (for rounding edges), and a convex block (for sanding inside curves). Attach sandpaper with spray adhesive or double-sided tape. The blocks themselves are PLA at 100% infill for stiffness. I use these for finishing 3D prints (ironic, I know-printing tools to finish prints) and light woodworking.

Electronics and 3D Printer Accessories

13. Nozzle organizer and size gauge: A small rack that holds spare 3D printer nozzles organized by size, with the diameter printed below each slot. Next to it, a stepped gauge plate that lets you measure a nozzle's bore by finding which test hole the nozzle tip fits into. Solves the eternal problem of "which nozzle is 0.4 mm and which is 0.6 mm" when they're all sitting loose in a drawer.

14. Electronics project enclosures: Custom enclosures for Raspberry Pi, Arduino, ESP32, and other development boards. Parametric designs (like the Ultimate Box Maker in OpenSCAD) let you specify exact dimensions, mounting hole positions, and cutouts for ports and buttons. I've printed enclosures for my OctoPrint Pi, home automation controllers, and sensor nodes. PETG is my default material for enclosures-tougher than PLA and resistant to the heat generated by enclosed electronics.

15. Funnel and liquid pour spouts: Custom funnels sized for specific containers-resin bottles, IPA wash stations, paint cans, and even coffee bean hoppers. Printed in PETG at 3 walls, no infill needed (the funnel itself is the wall). Add a small notch in the rim for controlled pouring. These cost pennies to print and save you from buying a $5 funnel that doesn't quite fit your container anyway.

Design Tips for Functional Prints

Functional prints require different thinking than decorative ones. Every tool on this list went through at least two revisions before I was satisfied. Here are the patterns I've learned:

Over-engineer the first version. Make walls thicker, tolerances looser, and features larger than you think necessary. It's easier to slim down a working design than to figure out why a thin one broke.

Test the critical feature first. Before printing a complete tool, print just the snap-fit joint, the hinge, or the clamping face. Verify it works in isolation before committing 4 hours to the full model. This aligns with the test-first approach in our design guide.

Use heat-set inserts for threaded connections. Printed threads work for low-torque applications, but heat-set brass inserts ($0.10 each) give you metal threads inside plastic. A soldering iron pushes them into an undersized hole, where they melt into the plastic and bond permanently. Every clamping tool on this list uses heat-set inserts.

Label everything. Add embossed or debossed text to your tools with size, material, date, and version number. Six months from now, you won't remember which sanding block is the 120-grit and which is the 220-grit. A tiny raised "120" on the face solves this permanently.

The market for functional prints is growing precisely because they solve real problems that injection-molded products don't address-your specific drawer dimensions, your specific tool collection, your specific workflow. That's the superpower of 3D printing: custom solutions at prototype speed. Start with one Gridfinity bin, and I guarantee you'll be redesigning your entire workshop storage within a month.