3D Printed Fishing Lures: Do They Actually Work?

The honest answer

Yes. Not every design, not every time, but printed lures catch fish. Jacob Stanton tested five printed lure designs and caught bass on his segmented swimbait. ProfHankD's Flatfish-style lure on Printables has documented catches of multiple largemouth bass in under an hour. Steve Thone's crankbait and topwater designs on Thingiverse have photos of fish caught.

The segmented swimbait design stands out. Loose hinges between body segments create realistic swimming motion from water drag alone. No special retrieve technique needed. The printed hinges flex just enough to give the lure that wounded-fish wobble that bass respond to.

What doesn't work as well: minnow lures that are too light to cast effectively, and spinner designs where the blade action depends on tolerances tighter than FDM can reliably produce. Stick to crankbaits, swimbaits, topwater poppers, and jigs for the best success rate.

Lure types that print well

Crankbaits

Two-half designs glued together after printing. Screw eyes at the nose (line tie), belly (treble hook), and tail (treble hook). The lip can be printed as part of the body or cut from clear acrylic/polycarbonate for better action. Square-bill crankbaits are the easiest to print and work well in shallow water.

Segmented swimbaits

Multi-segment bodies connected with wire or split rings. Some models use print-in-place hinges that flex right off the build plate. The hinge segments create the swimming action, so tolerance on the hinge gaps matters. Print these at 0.15mm layer height for cleaner hinge articulation.

Topwater poppers and minnows

Low-infill designs that float. A cupped face on a popper creates that distinctive splash-and-gurgle on the surface. Minnow profiles with a twitching retrieve work for bass and pike. Print at 10–20% infill for flotation.

Soft bait molds

Instead of printing the lure directly, print a two-part negative mold and pour liquid silicone or plastisol into it. The mold captures detail that would be impossible to hand-carve. Print the mold in ABS to handle the heat of poured plastisol. This approach gives you unlimited copies of custom worm, crawdad, and frog shapes.

Material selection

PETG is the best all-around lure material. Better water resistance than PLA, slight flex that prevents shattering when a lure hits rocks, and it holds up across multiple fishing sessions. Print at 60% infill for floating crankbaits.

PLA works for getting started. It's easier to print, takes paint well, and costs less. Seal PLA lures with two coats of epoxy (EnviroTex Lite is the community standard) to waterproof them. Without sealing, PLA absorbs water slowly and the lure gains weight over a few sessions. More detail on PLA's water behavior in the PLA waterproofing guide.

Silk PLA deserves special mention. The metallic shimmer mimics the flash of baitfish scales underwater. Gold and silver silk PLA produce lures that catch light as they move, which is exactly what you want a lure to do. Print at the higher end of the temperature range for maximum glossiness.

For glow-in-the-dark filament, the phosphorescent particles create visibility in murky water, deep water, and dawn/dusk conditions. Charge the lure with a flashlight before casting. Use a hardened steel nozzle because the glow particles chew through brass.

Controlling buoyancy with infill

This is where 3D printing gives you an advantage over hand-carved lures. You can dial buoyancy precisely through infill percentage:

Internal rattle chambers add both sound and weight. Design a hollow cavity inside the lure body, print the lure in two halves, drop in a few BBs (0.177 caliber) or glass beads, then glue the halves together. Steel balls serve double duty: weight and rattle. For fine weight tuning, pause the print at a specific layer, insert a split-shot sinker into an infill void, and resume printing. The weight gets embedded exactly where you need it for balance.

Finishing and waterproofing

Raw prints catch fish, but finished lures catch more and last longer.

Waterproofing

Two coats of two-part epoxy (EnviroTex Lite or similar pour-on finish) waterproofs the lure, hides layer lines, and creates a glossy finish that resembles a commercial bait. Rotate the lure on a drying rack while the epoxy cures to prevent drips and runs. UV resin works well for sealing wire entry/exit points where screw eyes pass through the body.

Hook hardware

Stainless steel screw eyes (1/2" length, 0.050" wire) at the nose, belly, and tail. Pre-drill or design printed holes at each position. Dip the threaded end in 5-minute epoxy before screwing in. Attach #4 or #6 treble hooks via split rings to the screw eyes.

Paint

Airbrush gives the best results for baitfish patterns. Sand the glue seams flush before painting. Clear coat over paint with another epoxy layer. If you're printing in silk PLA, the metallic finish often looks good enough without painting. The surface finishing guide has techniques for sanding and coating that apply directly to lure finishing.

Cost comparison

A printed lure costs $0.20–0.70 in filament. Add hooks, split rings, screw eyes, and epoxy, and you're at $1.50–3.00 fully rigged. A comparable commercial crankbait costs $6–15. Specialty swimbaits run $25+. When you lose a $0.70 lure to a snag, you shrug. When you lose a $15 Rapala, it stings. For more functional printing projects at this price point, the beginner projects guide has other ideas.

Free STL files worth downloading

• Flatfish-ish Lure by ProfHankD (Printables) — documented catches, includes buoyancy tuning notes.
• Crankbait by sthone (Printables) — proven two-half design, the most popular free fishing lure STL.
• Topwater Minnow by sthone (Thingiverse) — good wobble action, wounded-minnow retrieve.
• Topwater Lure build guide (Instructables) — 12-step tutorial covering wire armature, weighting, and epoxy finishing.

Thingiverse has 184+ fishing lure models under the "fishing_lure" tag. Printables has an active fishing community with new uploads regularly. Between the two, you can find crankbaits, swimbaits, soft bait molds, jigs, and spoon lures. Print a few different styles, rig them up, and go fishing. The camping gear guide has more outdoor-oriented projects using similar materials and settings, and the PLA filament lineup includes both standard and silk variants for lure printing.