Cat Laser

A DIY laser pointer using a common 650nm 5V laser diode with copper head and a tact button.
Used the excellent 3AAA flexible case from enif with the necessary cabling.
I used 6x6 tact switch, with also 9mm tip high. Use both contacts on the tact switch in parallel.

Need to design a cap,but thinking how to make one to protect the button from accidental push.

Update 28/4/2020 I designed a simple top cover. Be aware, the design in the freecad file is not to be taken as an example !!!!

Components I used:
Laser: https://www.aliexpress.com/item/32947693088.html?spm=a2g0s.9042311.0.0.27424c4dqQCO7x

The tact switch found in my drawer but the following (with at least 9mm high) will do:
https://www.aliexpress.com/item/1058764733.html?spm=a2g0o.productlist.0.0.1ff04b721LA7OM&algo_pvid=eb349281-653d-492e-9cf1-df0298d4a358&algo_expid=eb349281-653d-492e-9cf1-df0298d4a358-0&btsid=f1567b83-987a-4cc1-a83f-36bc3daf5e99&ws_ab_test=searchweb0_0,searchweb201602_3,searchweb201603_53