Myford Super 7 - 30 teeth tumbler gear

I encountered a problem when not paying too much attention when I was threading internal threads on my Myford Super 7 lathe.
It coused the threading bar to run into the inside of the part at hand, and so stall the lathe gearbox and pulling 4 teeth off one of the Tufnol gears.
I thank Myford for designing this safety item, but sadly I didn't have another gear at hand.

Luckily the gear dimensions were not hard to find out. I designed a new spur gear in Solidworks and printed it.

It is runn