3:1 Ratio involute gear

I'd like the simple design but after I printer a few parts I thought the 5:1 transmission is more then we need so I designed a new gear with involute theeth with a 3:1 transmission.

Have not print it yet but should be fine.

Greez 3r4th

update: After printing the parts I increased the the hexnutdiameter and the shaft hole for a bettet fit