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ShapeMaster

A modular fractal vise with rotating, quick-swap jaws built to hold curved, angled and irregular parts

Status
Campaign endedEnded March 6, 2026

Editor’s view

Why it matters

Conventional vises assume parts are flat, square and predictable. Real workpieces rarely are, and irregular contours tend to slip, get marked at the edges or simply refuse to seat. ShapeMaster targets exactly those awkward shapes. The maker traces its origins to a clamping concept proposed more than a century ago in the Austro-Hungarian era, but describes the product as a full redesign focused on modularity, simpler operation and practicality in a modern workshop, refined over four main development stages.

Fractal grip and dual-mode clamping

At the core is what the maker calls a multi-point fractal gripping system: overlapping, interlocking jaws whose contact points move independently, letting the vise conform to curved, polygonal and asymmetric objects while distributing clamping force evenly. The rotating jaws also switch between external gripping and internal expansion without disassembly or tools, so the same vise can clamp the outside of a curved part or brace a hollow or thin-walled piece, such as a 3D-printed prototype, from within.

The rotating, quick-swap jaws are designed for commonly used profiles, including 90-degree, 120-degree, round, trapezoidal and flat shapes. A standardized base with an 8-position indexing pin system is intended to let different clamping modules be aligned and mounted quickly without repeated calibration, relying on structural positioning rather than manual fine-tuning.

Angles, mounting and maintenance

An adjustable tilt base positions parts at working angles for tasks such as laser engraving, soldering, inspection and delicate assembly. A built-in locking clamp attaches the vise to desks, workbenches or temporary surfaces without drilling or screws, which the maker says leaves no damage behind. The jaws themselves are deliberately simple, with few wear-prone parts and no decorative cutouts on the jaw faces, so sanding dust, overspray and oil have fewer places to collect.

Versions and materials

  • Edge version: 34mm clamping range
  • Max version: 120mm clamping range; the maker says the expandable jaws give up to 120mm (4.72 inches) of capacity
  • Aluminum: light and easy to handle
  • Alloy (stainless steel + aluminum): a balance of strength and weight
  • Steel: maximum durability

The maker positions ShapeMaster for prototype engineers finishing 3D-printed parts, machinists working on custom metal components and desktop makers, as well as home DIY and educational model-making.

Product information is based on manufacturer announcements. Modern-G has not tested this product hands-on. Last updated:

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Specifications

Full specifications are not confirmed yet. We will update this page once they are published.

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