40.5mm filter wrench for the Sony PZ 16-50 OSS lens

I recently bought a Sony a6000 camera with its PZ 16-50 OSS 'kit lens'. It is my habit to put a UV filter to protect the front of my lenses but, in this case, the odd-sized 40.5mm filter decided to stick in the camera lens's thread (not an uncommon occurrence with filters). Normally it is easy to get hold of a filter and unscrew it, but in this case the filter is much smaller than the lens body diameter and it proved impossible to get a decent grip.

There are some designs for filter wrenches in Thingiverse, but none for this odd size, so I designed my own in OpenSCAD. It was made over-sized so that a thin rubber sheet can be inserted between the filter and the wrench to give extra grip - alternatively, an elastic band can be fitted around the filter to do the same job. The aim is to give an even grip around the filter body, rather than allowing excessive force; you should find that a firm grip on the handles will give a positive hold on the rim and the filter should unscrew will little effort.

It's not a 'pretty' design - it's functional and intended to do a specific job without fuss. The OpenSCAD file is tiny, and hopefully has enough comments to allow anyone to make changes.

Print Settings

Printer Brand:

Prusa

Printer:

Rafts:

Doesn't Matter

Supports:

Resolution:

0.2 or 0.3

Infill:

Notes:

I used PLA, but it should be OK with ABS.

Category: Camera