A lens cap, sized to your lens front.

Measure the outside of your lens front, choose a smooth or flex fit and download a free blank cap, or add your lens name, focal length and logo as a two-colour inlay. A 5 mm test ring checks the fit first.

What you set

• Lens front diameter from 35 to 150 mm, fit allowance and insertion depth
• Smooth fit, or flex fit with spring fins that take up print variation
• Lettering, layout, typeface and your logo for a personalized cap

What you get

• Blank cap: free 3MF and STL, plus a free fit test ring
• Personalized: two-colour 3MF, aligned STLs, an A4 sticker sheet and a blank cap
• Colour hints in the 3MF; you assign filaments in your slicer

New to measuring? Read how to measure a lens for a focus gear.

More generators

The interactive generators need JavaScript. Every file is generated from your dimensions in millimetres, with module 0.8 teeth and engraved sizes.