At Protomolecule, we were recently approached by a local Nottinghamshire-based gutter vacuuming company with a specific challenge: they needed a robust clamp system to attach equipment securely to a 3030 aluminium extrusion framework. Off-the-shelf solutions weren’t fit for purpose—either too bulky, expensive, or not quite the right fit.
Understanding the Problem
The client needed a 50mm clamp that would:
- Fit snugly around round tube
- Attach to 3030 aluminium extrusion
- Be both strong and lightweight
- Withstand repeated use in a demanding commercial setting
With no prior CAD model available, our team designed the part from scratch to meet their functional requirements and fit tolerances precisely.
Our Approach
- Custom CAD Design: We developed a 3D model tailored to the extrusion’s profile and the clamp’s required grip range.
- Material Selection: PETG was chosen for its durability and flexibility, offering a good balance between strength and ease of use.
- Prototyping and Testing: A prototype was printed and tested on-site by the client to confirm fit and functionality.
Outcome
The final product was delivered quickly, performing exactly as required. The client now has a reliable clamping solution for their equipment—without needing to modify their existing framework or invest in metal fabrication.






