Diffuser for 2020 profile desk lamp

I like and plan on building one of gadgetmind's desk lamps- I will use strips of smd5630 leds. From using them on my printer, I know I will want to have a diffuser to improve the light quality. This is a fist hack at one and a placeholder for an other mods I come up with as I am building the lamp. This should be printed in white- This first cut has a 3mm lens thickness which worked out well on the one I did for my printer.

2018.02.19 Update- printed a copy of this and it was a little too tight slipping over the head.. and a little too thick. The new version is 2mm thick with .2mm more relief on the inner perimeter. After I print a copy of this new version.. depending on how well it fits and stays on, I might put some structure on the ends to keep it from sliding off.

2018.02.22 Update- I added tabs on the end and printed it out and it works great. Still waiting on the rest of the parts but will post a pic when it is all assembled. I switched out my pei sheet for a new one ..