Tools & equipment

Hold-Down Clamps for CNC, Laser and Woodworking: STL Models

This collection gathers STL models of hold-down clamps, the parts that press a workpiece or fixture against a machine bed so it stays put while cutting or engraving. It covers clamps for CNC router tables, laser cutter honeycomb beds and woodworking benches, plus kits that group several arms and heads. The set is useful when you need a fixture that matches the track, hole grid or bed of your own machine and 3D printer. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

How this collection is put together

Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.

Selection rules: the Polyzon editorial team · Text updated 2026-10-15


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About the category

«Hold-Down Clamps for CNC, Laser and Woodworking: STL Models»

Clamps for CNC tables usually follow a T-slot or a stepped profile that slides into an extruded track, and most designs use a screw or bolt to pull the arm down onto the work. Laser honeycomb variants tend to be flat and low so the cutting head can pass over them, and they often grip the bed with pins instead of tracks. Woodworking versions are built around bench dog holes or rails and are generally chunkier, since they hold larger panels and boards. Kits and bundles group several arms, risers and contact heads so one set covers different heights and materials.

On the model page, look at the stated size and scale first: the arm length, the thread the clamp expects, and the height of the profile decide whether it fits your track or hole grid. Check how many parts there are and how they assemble, whether the author lists supports, and which material and settings were used. Photos of real prints show how the threads, the sliding surfaces and the contact face come out, which tells you more than a render.

If a search returns too much, narrow it by machine or fixture type: track clamps, bed pins, bench stops, edge clamps, toe clamps or fixture plates. Related terms such as workholding, fixturing, back stop, riser or low-profile clamp often lead to the same family of parts. Searching by the bolt size or the track profile, rather than the word clamp on its own, usually gives a shorter and more relevant list.

FAQ

Frequently asked questions

What is a hold-down clamp used for?
It presses a workpiece or a fixture against a machine bed or bench so it does not shift during cutting, engraving or drilling. Many of these models are printed and then combined with a bolt, screw or pin.
How do I pick a clamp that fits my table?
Match the interface first: the track profile, the dog hole spacing or the honeycomb grid, and the thread of the bolt the clamp takes. Then compare the arm length and overall height with the clearance your tool needs.
Do these clamps need supports when printed?
It depends on the shape. Flat, low-profile designs often print without them, while stepped or overhanging arms may need them. Check the model page and the orientation the author recommends.
Does the material change how a clamp behaves?
Yes. Stiffer filaments resist clamping pressure better, while softer ones can mark the workpiece less. The author's page usually states which material and settings were used.

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