Zeiss Ikon Nettar 120 film camera winding knob

The winding knob for my Zeiss Ikon Nettar 517/16 fell off while shooting and I sketched this up with no reference to the old one. This one works fantastic and much better than the factory one (except this one is plastic and the factory one was metal). I've made a few versions of knurling and found this one to be the best in terms of grip and comfort. I printed in silver to match the camera but other colors look great too. Would recommend printing in higher infill % for maximum strength (although not needed as 120 film is not wound super tight.