Nobody had a model for the new Defiant locks for the august lock pro, although they had one for the regular august lock, so I took these two things:
And combined them into the part I needed.
This is being used in my August Lock Pro 3rd Gen and seems to be working well. The print was made on a Formlabs Form 2, but you should be able to print it just fine on an FDM printer with a small nozzle. I may walk the dimensions of the inside hole back to 3.5mm x 5.5mm at some point to allow for a little less play in the lock. It however doesn't matter much, as it just needs to turn slightly farther. Inventor 2018 file is included as well if you need to make modifications.
STL is in inches.
Clear Resin V4 Clear Resin V4
Clear Resin V4