3D printed spare parts for industry — from machine stoppage to delivery in 3 days

Table of contents:
When does it make sense? · Materials for spare parts · The process · Typical examples · Limitations · FAQ

A critical machine in your production line is down. The spare part has been discontinued by the manufacturer. Lead time from an alternative supplier is 6–8 weeks. What do you do?

For a growing number of industrial and manufacturing companies, the answer is: 3D print the missing part. The technology — and the materials — have reached the point where this is a real solution, not just a stopgap. At Maker Factory, we print spare parts in technical plastics for machines, production lines, and technical equipment. Here's everything you need to know.

When do 3D printed spare parts make sense?

3D printing isn't the answer to everything — but it's a perfect fit for a number of classic spare-parts scenarios:

Machine downtime — the most expensive kind

Production downtime typically costs thousands of kroner per hour. If a discontinued plastic part is the cause — a cover, a guide, a holder, a bracket — a DKK 500–2,000 3D print is an obvious investment compared to days or weeks of standstill. We've delivered parts for exactly this scenario to manufacturing companies across the country.

Older machines and phased-out products

Machines from the 1980s and '90s are still in use in many factories. Spare parts are either discontinued or only available used. 3D printing makes it possible to produce these parts on demand, based on the original part (reverse engineering + scanning) or existing drawings.

Prototype parts for testing before production

Before ordering 500 molded parts, it's standard practice to print 5–10 units in the actual material for function testing. We print test batches in materials that match your production requirements.

Materials for industrial spare parts

Have specific material requirements (FDA-approved, ESD-safe, flame-retardant)? Contact us — we also print in specialty materials such as PC-FR and can tell you what's possible.

The process from your problem to a delivered spare part

1. You contact us — with an STL file, a drawing, or the original part. Describe material requirements and use.
2. We assess and recommend — material, method (FDM/SLA), and what tolerance and quality we can promise
3. You receive a quote within 24 hours — with price and lead time
4. Production and delivery — typically 2–4 business days. For urgent cases: contact us about express options

Need reverse engineering (we model the part from the original)? We offer this for a surcharge — contact us with photos and measurements of the original part.

Typical spare parts we print

• Guide rails and tracks for conveyor belts
• Combs and holders for automation equipment
• Cable duct brackets and cable guides for machines
• Cover end pieces and protective parts
• Jigs and fixtures for assembly lines
• Gaskets and seals in TPU (as an alternative to rubber)
• Knobs, handles, and panel elements

Read more about our industrial 3D printing service and 3D printing for production →

What 3D printing can't replace

To set the right expectations: plastic 3D printing isn't suited to every spare-parts scenario. It doesn't work well for:

• Metal parts subjected to high load or temperatures above 150 °C
• Parts with tolerance requirements under ±0.05 mm (require CNC machining)
• Parts in rubber or silicone (we can substitute with TPU in certain cases)
• Parts with electrical conductivity requirements (unless an ESD material is specified)

Not sure whether 3D printing is the right solution for your spare part? Contact us — we'll give you an honest assessment.

Industrial spare parts in 3D printing — what we typically solve

Spare parts for machines that are no longer produced is one of the scenarios that most often surprises customers with how simple the solution is. The classic situation: a production machine from 2004 stops working because a plastic bracket has broken. The supplier no longer exists. The original part number gets zero hits. The alternative is either scrapping the machine or waiting months for a used part.

With 3D printing, the solution instead is: send us the broken part (or a photo plus measurements), and we reverse-engineer the geometry and print a replacement in PA6-CF or PETG. Lead time: 3–5 business days from when we have the measurements/file. Price: typically DKK 200–600 for simple plastic parts. Compared to the alternatives, it's an easy decision.

We regularly handle spare parts for packaging equipment (guide brackets, cable clamps, vacuum cup holders), conveyor belts (guide forks, tensioning brackets, guide rail inserts), agricultural machinery (sensor holders, cable glands, display mounts), and lab equipment (valve holders, hose clamps, test tube holders).

An important caveat: 3D printing isn't a universal answer for every spare part. Parts subject to high impact load, metal-wear contact, or temperatures above 150 °C are typically better solved with CNC machining or metal casting. We say so clearly in the quote, and we always recommend the right material over the cheapest one. It's better to turn down an order than to print something that only lasts three months and lose the customer's trust.

For machine-critical parts, we recommend PA6-CF — carbon fiber-reinforced nylon that's strong, dimensionally stable, and heat-resistant up to 150 °C. It's the material we choose for structural brackets, drive shaft guides, and mounting plates that carry mechanical load. For non-structural parts (covers, lids, cable management), PETG is sufficient and cheaper.

FAQ — 3D printed spare parts

Can you produce parts identical to the original?

Dimensionally, yes — within 3D printing's normal tolerances (±0.2–0.3 mm). The material properties aren't necessarily identical to the original, but we match them as closely as possible. In many cases, 3D printed PA6-CF parts are actually stronger than the original plastic parts.

What if I only have the physical part — no file?

Send us the original part by courier. We'll remodel it (reverse engineering) and create an STL file. The price depends on complexity — contact us with photos for an assessment quote.

Can you handle urgent cases?

Yes — for urgent cases, we have an express option. Contact us directly (email or phone) and we'll assess what we can do. Express production is available for a surcharge.

Do you provide certification or material documentation?

We can issue a material datasheet for the materials we print with. We don't offer full ISO certification, but for most industrial scenarios, the material datasheet is sufficient.

What's the minimum order?

No minimum order — we print from a single part. That's exactly one of the advantages of 3D printing over injection molding.

An important detail for customers sending physical parts for reverse engineering: we always return the original part intact along with the printed replacement. It's rarely necessary to destroy the original part to scan or measure it — with calipers and photo documentation, most simple geometries can be reconstructed without destructive analysis. Complex organic geometries may require 3D scanning, which we can arrange through partners.

For critical machine components, we offer a test print: we print one part for verification, you install and test it, and once approved, we print the full batch. It costs a little more per part, but it eliminates the risk of printing 20 units of a part that doesn't fit. We always recommend a test print for the first run of a new design.

Have a discontinued machine part that needs replacing? Send us a photo or a drawing — we'll assess the job for free and send a quote within 24 hours. We work with customers across Denmark and regularly handle spare-parts jobs for manufacturing companies, agriculture, laboratories, and specialized equipment. Use our request form to start the conversation.

3D printed spare parts aren't just for large companies with production lines. We also solve spare parts for private customers: coffee machines, vacuum cleaners, e-bikes, garden tools. Has a part broken and you can't find a replacement in stores? Send us a photo and measurements — we'll assess whether 3D printing is a suitable solution and provide a quote. Many household appliances from 2005–2015 have no spare parts left on the market, but it takes us just 2–4 business days to produce a replacement.