This is my second customizable thing. It's a small reading light using the smartphones flashlight. You can plug your smartphone in there and the cylinder and the diffusor should do the rest. At least the diffusor and the cylinder must be printed in white in order to get the light reflected and not absorbed. Its recommended to print the base also in white. I haven't printed this for myself due to a Lack Enclosure Update for my printer. As soon as it is done, I'll start printing this thing. So I don't really know if it works. If you'll get it before me, share it!
Adjust the phone size to your phone including its case, if there is one. Measure the top and the left distance of your flashlight. Also you are able to adjust the wall width, upload a fancy logo to be shown on the cap, adjust the height of the cylinder and diffusor. For the cap tolerance I suggest using at least 0.4mm.
In order to fit the diffusor and the cylinder in the case, when not in use, the diffusor height and the cylinder radius should'nt be greater than the smartphones height + case.
Default sizes are for iPhone 5s+Cover. In order to get this properly work, you'll need to adjust at least your phone settings. If you have suggestions for improvement, let me know.
Happy printing and cheers!