Astrolux WP1 diffuser cap

The Astrolux WP1 diffuser cap is great at diffusing, but unfortunately it also diffuses away the often needed hot-spot of the beam too, seriously limiting the torches throw.

I've created this customisable cap that snugly fits the torch, and done some testing for the best filter to use to get some throw as well as diffusion.

The best filters to use are semi-transparent ready meal lids, the ones that clip onto the meal, and are semi-opaque.

The one I made in this picture was from a semi-transparent plastic bag! Obviously it's too soft as a filter, so I also cut out some clear discs from some ready meals I had handy.

The STL's include a cutting template for the discs (Disc_cutout_template.stl) - to use it you tape down the middle bar to the plastic sheet you're cutting out to keep it very still, then simply cut around it. It works too for plastic bags.

The customiser comes in handy when you know the thickness of your filter - you can set that using it. You can also set the