3D Printed CNC Fixtures and Additive Tooling
Additive manufacturing lets a fixture follow the shape of the part instead of the other way round. Innovat3D designs and prints CNC fixtures, nests and machining aids in engineering-grade polymers for UK manufacturers.
3D printed tooling is used where speed, weight, conformal location or cost of iteration matter. It is chosen on merit — where loads, heat or wear demand metal, the fixture is designed accordingly, often as a hybrid of printed bodies with metal location and clamping hardware.
Problems this solves
- Tooling lead times holding up a new part introduction
- Machined tooling cost that cannot be justified for a handful of parts
- Delicate or finished surfaces marked by hard jaws
- Fixture concepts that need proving before committing to metal
- Heavy fixtures that are awkward and slow to change over
Typical applications
- Conformal nests matching a scanned or modelled surface
- Soft location details and protective jaw faces
- Second-operation and inspection setups
- Assembly, marking, drilling and deburring aids
- Prototype fixtures used to validate a design before hard tooling
Benefits
Days, not weeks
Design revisions and reprints are quick, so the fixture keeps pace with process development.
Conformal location
Geometry that would be slow and costly to machine can be printed directly.
Part protection
Polymer contact faces reduce marking on finished or soft components.
Low weight
Easier handling and faster changeover between setups.
Metal where it counts
Threaded inserts, hardened pins and steel clamps are used where loads require them.
Cost-effective one-offs
Viable for single fixtures and short runs where machined tooling is not.
Who we work with
- Machine shops introducing new or awkward parts
- Manufacturing engineers trialling process changes
- Toolrooms needing quick replacement tooling
- Low-volume and prototype manufacturers
How it works
- 01
Assess suitability
We look at cutting loads, accuracy, heat, coolant exposure and expected life before recommending printed tooling.
- 02
Design for additive
Wall sections, print orientation and insert positions are designed around the load path.
- 03
Print in engineering polymer
Material chosen for stiffness, coolant resistance and durability in a workshop environment.
- 04
Finish and assemble
Inserts, dowels and clamping hardware fitted; critical faces machined where required.
- 05
Trial and iterate
Revisions after first-off are quick and inexpensive.
Frequently asked questions
- Are 3D printed fixtures accurate enough for machining?
- For many second-operation, location and inspection tasks, yes — particularly when critical datums are formed by metal pins, bushes or machined faces set into the printed body. Heavy roughing on rigid parts is usually better suited to metal tooling.
- What materials are used?
- Engineering-grade polymers selected for stiffness, temperature and coolant resistance rather than general-purpose hobby filaments.
- Will coolant damage a printed fixture?
- Material choice and design matter. Materials are selected with coolant exposure in mind, and printed tooling is specified for the working life the job actually needs.
- Can printed fixtures replace metal fixtures?
- Not in every case. They are an additional option that suits certain load cases and timescales. Where rigidity, heat or wear rule them out, we say so and design in metal.
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View Engineering 3D PrintingDiscuss your application
Send CAD files, drawings, photographs, dimensions, an existing part or simply a description of the manufacturing problem — whatever you have is enough to start. Based in Stoke-on-Trent, Staffordshire, Innovat3D supports engineering and manufacturing customers throughout the UK.