Weerg Guides

7 min read

Orientation in FDM 3D Printing: How It Affects Strength, Finish, Cost

Weerg staff: Oct 14, 2026

In FDM 3D printing (Fused Deposition Modeling), the same part, made with the same material and on the same machine, can be strong or brittle, smooth or rough, cheap or costly according to its orientation in the print volume. Orientation is therefore not a simple process parameter, but a design...

8 min read

Which type of Polyethylene (PE) to choose

Weerg staff: Oct 7, 2026

Polyethylene (PE) is the most widely produced polymer in the world: from grocery bags to gas pipes, from industrial tanks to hip replacements, this family of materials covers an extremely wide range of applications. Its strength lies in its versatility: by modifying the molecular structure,...

9 min read

3D-Printed Interlocking Parts: Design Guide 2026

Weerg staff: Sep 30, 2026

One of the least exploited advantages of 3D printing is the possibility of eliminating screws, glues and other fastening elements, integrating the assembly directly into the geometry of the part. Interlocking parts such as snap-fits, snap joints, dovetail joints and living hinges make it possible...

9 min read

Ductility and malleability of metals: what they are and differences

Weerg staff: Sep 23, 2026

Ductility is the ability of a material to deform plastically under tension without breaking. Malleability is the ability to deform plastically under compression without breaking.

Ductility and malleability are two terms often used as synonyms. In reality they describe two distinct behaviours of the...

7 min read

Technical parts for logistics and autonomous mobility systems

Weerg staff: Sep 16, 2026

Autonomous logistics is one of the fastest-growing industrial sectors: AGVs, AMRs, last-mile robots and drones require numerous custom technical components hard to find off the shelf, such as load compartments, fairings, sensor mounts and optimised structural frames.

Industrial 3D printing makes it...

7 min read

Custom 3D printed orthoses, braces and insoles: advantages and process

Weerg staff: Aug 26, 2026

Every patient has a different anatomy, and every orthosis, brace or insole should fit perfectly. Traditional orthopaedics has always known this, but until a few years ago, personalising meant resorting to plaster casts, foam models, manual working, long times and results heavily tied to the...

7 min read

Melting point: what it is, how it's measured and why it matters

Weerg staff: Aug 19, 2026

The melting point is one of the most consulted properties in the choice of a material, but also one of the most misunderstood. It's often confused with the maximum operating temperature or with softening. Furthermore, different parameters are sometimes compared, such as the melting point of metals...

7 min read

How to choose the material for your 3D printed medical device

Weerg staff: Aug 12, 2026

PA12 nylon, Medical ABS, PEEK or resin? For those developing a 3D printed medical device, it's the question that immediately follows the one about geometry: which material guarantees biocompatibility, resists the intended sterilisation method, offers the necessary mechanical properties and remains...

6 min read

What Steel Is Made Of: Composition, Elements, and Types

Weerg staff: Aug 5, 2026

What is steel made of? The short answer is: iron and carbon. The complete one opens up a whole world. Steel is a metal alloy composed of over 95% iron, but it's the remaining elements that determine its characteristics.

Understanding the composition of steel means understanding why an S355 behaves...