Kitty Cutter Update
New Kitty Cutter models are now available, designed to hide standard-sized M5 hex or square nuts. I recommend using these or the heated inserts if possible, especially if you're selling them so you don’t have to rely on a 3D printed bolt. This also allows you to increase the layer height and reduce print time.
I've also added a 3D printable thumbscrew compatible with most rounded-top M5 bolts and a hex nut. It’s a support-free print, you’ll just need to puncture through the bridge after printing.
An ergonomic model is also in the works, designed to be more universally appealing and suitable for both left and right-handed users, as well as push/pull motions all in one model.
https://than.gs/m/1144984
If you have any suggestions or run into any issues, feel free to reach out for the next update.