C-clamp

This C clamp is a fully 3D printable minimal part design created for practical everyday use. In this case it was made to securely hold a fan for my in laws. The entire clamp consists of just three printed parts which makes it easy to manufacture assemble and modify without any additional hardware.

The screw and thread are fully printable which removes the need for metal components while still providing smooth adjustment and sufficient clamping force for light to medium applications. When printed in PLA the clamp performs well for general use. For increased stiffness durability and heat resistance PETG or similar materials are recommended.

The design is parametric which allows the clamp size to be adjusted depending on the intended use. That said it performs best within a range of 75 to 200 units depending on your scaling setup. Outside of this range the geometry starts to behave less predictably and tolerances may become unreliable so staying within these limits is advised for optimal results.

Structurally the frame uses angled supports and hollowed sections to balance strength with material efficiency. The threaded spindle applies pressure smoothly while the body geometry distributes force evenly across the clamping surfaces.

Overall this is a simple practical and fun print that works well for quick household fixes or as a base for further customization. Have fun printing and experimenting with it.