Wire Straightener V3 (1-3mm)

Crooked wire costs you time and material. This tool fixes it before it reaches the bench.

Straightening wire at the bench means hammering — which risks marking the surface — or filing and grinding, which removes material you’re not getting back. The Wire Straightener V3 eliminates that step in most cases, delivering wire that goes directly into the next operation.

How it works

Two rows of U-groove bearings are arranged in perpendicular planes. Each row is adjustable via Allen key, allowing you to set the pressure independently per axis. Wire passes through repeatedly until straight — with good calibration, this takes a handful of passes. The result depends on wire diameter and material, but the output is consistent and repeatable.

Bench scale, not industrial scale

Industrial wire straighteners are large, expensive, and built for continuous feed production. This tool brings the same mechanical principle to the workbench — handheld, compact, and sized for the small shop where floor space matters.

Built from 3D-printed PETG with metal hardware and bearings where it counts. Under normal use the construction is solid; flex becomes a factor only with wire well outside the specified range, and affects tool longevity rather than immediate output quality.

Applications

Used wherever straight wire stock reduces downstream work:

• Silversmithing and metalsmithing — silver, gold, and other precious metal wire; ring shanks, prong stock, wire inlay, chainmaking
• Cage and frame fabrication — speaker grilles, miniature helmet grilles, protective enclosures, structural wire forms
• Decorative metalwork — wire stems, sculptural elements, architectural models
• Electronics and electrical work — copper wire before termination, panel wiring, LED matrix and wire cube builds
• Veterinary and technical devices — form-critical components where wire geometry directly affects function
• Any context where wire must be dimensionally consistent before forming, cutting, or assembly

Specifications

For finer wire (0.5–1.5 mm): Wire Straightener V3 MINI
For rectangular and flat wire: Tandem Rectangular Wire Straightener

What’s included

• 1 assembled Wire Straightener V3
• 1 M4 Allen key
• Instructions leaflet

Watch the original in action on my YouTube channel: https://www.youtube.com/watch?v=GvA7ugXsBC8