Eurecat needed an efficient and cost-effective solution for producing extrusion blow molding (EBM) molds, particularly for the complex air duct components used in automotive manufacturing. Traditional CNC machining methods were too slow and costly and couldn’t offer the necessary design flexibility.
3D printed extrusion blow molding molds for rapid, low-cost design iterations

Summary
Challenge
Solution
HP’s 3D printing technology using HP 3D HR PA 12 material allowed Eurecat to design and produce EBM molds quickly and accurately. This solution improved the mold’s performance and enabled more complex geometries, reducing the reliance on traditional machining methods.
Value
The solution achieved a 46% cost reduction compared to CNC-machined molds. It also reduced production time significantly, from several days to just hours. The ability to test multiple designs quickly allowed for more efficient and flexible manufacturing processes.
Products & Services
- HP MJF Technology
- HP 3D HR PA 12 Material
- Post-processing: Bead blasting
- Design and processing guidelines
AM I Navigator Maturity Model
0
1
2
3
4
5
S0
S1
S2
S3
S4
AM is fully integrated into the strategy, driving innovation in various sectors.
S5
PD0
PD1
PD2
PD3
PD4
AM is heavily utilized in mold design, optimizing functionality and cost, but lacks full integration with product lifecycle management tools.
Could further specify the role of DfAM in optimizing the design process.
PD5
M0
M1
M2
M3
M4
Material selection is based on functional needs, with a focus on performance and durability for molds.
M5
PE0
PE1
PE2
PE3
AM has optimized mold design and production, but further process simulations are needed for performance improvements.
PE4
PE5
PS0
PS1
PS2
PS3
PS4
AM streamlines mold production, reducing setup time, but manual intervention still exists in the process.
PS5
ME0
ME1
ME2
Manual process.
ME3
ME4
ME5
Q0
Q1
Q2
Q3
Product and Process quality planned and inspected for manufacturing process compliant with industry standards.
Q4
Q5
MS0
MS1
MS2
MS3
Regular printer maintenance.
MS4
MS5
ES0
ES1
ES2
ES3
ES4
AM reduces material waste and energy consumption, improving sustainability in mold production.
ES5
PO0
PO1
PO2
PO3
Developing additional AM offering to existing machine business.
PO4
PO5
Evaluate your additive manufacturing capabilities across 10 different dimensions.
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