Ferramentas e equipamentos

Hold-Down Clamps for CNC and Laser Tables: STL Files

This collection gathers printable hold-down clamps used to fix workpieces on CNC tables, laser beds and workbenches. The models range from simple G-clamps to low-profile clamps shaped around honeycomb beds. It is useful if you already own a 3D printer and want to make your own workholding instead of buying it. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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Regras de seleção: equipe editorial do Polyzon · Texto atualizado em 15/10/2026

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«Hold-Down Clamps for CNC and Laser Tables: STL Files»

The designs differ mainly in how they attach to the machine. T-slot clamps use a bolt that slides into the table profile, honeycomb clamps are kept flat so the laser head can pass over them, and G- or C-clamps rely on a screw thread and a wide jaw. Kits and stepped risers combine several parts to reach different heights, while parametric versions let you enter your own dimensions before exporting an STL.

Before printing, compare the model against your setup: slot width, table or bed thickness, bolt head size and the reach of the jaw. Look at the number of parts, whether the thread is printed or takes a metal screw, and whether the author expects supports. The model page usually lists the material and settings used, and photos of real prints show how the clamp sits on a table.

If the first search is too narrow, try related terms such as workholding, fixture, cam clamp, toggle clamp or spoilboard clamp. Adding the machine type, the table profile or the bed style narrows results further, and searching for the hardware you already have, such as a specific bolt or screw size, often brings up matching designs.

FAQ

Perguntas frequentes

What should I check before printing a hold-down clamp?
Check the slot or bed dimensions it was drawn for, the bolt or screw it accepts, and the clamping height. The author's page usually states these along with the material and settings used.
Do printed hold-down clamps need supports?
It depends on the geometry. Many are modelled to print flat with no overhangs, while others have jaws or bridges that need support. The model page or the print notes usually say which case applies.
Which filament works for a printed clamp?
Authors list different materials depending on stiffness and temperature at the machine. Stiffer filaments resist bending under load, while some designs are meant to flex slightly. Follow the material named on the model page.
Can I scale a clamp model to fit my table?
Scaling changes bolt holes, threads and wall thickness, so a scaled clamp may no longer fit its hardware. Parametric versions that accept your own measurements are a safer route.
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