Laser Tag sensor base

This is the plastic base for my laser tag sensor (Laser Battle).

Project blog here : http://www.myhomefab.fr/category/laser-tag/
Project github repository here : https://github.com/myhomefab/laser-battle

The work is based on this model of acrylic dome found here : http://www.ema-models.co.uk/index.php/acrylic-plastic-shapes/hemispherical-domes/clear-domes/hemispherical-head-44-5mm.html