I made the mistake of trying to put bondo and paint to hide the separation of the parts. Still, il was easier to put together without the locking system. Having more space for the string knots inside the ken is also a nice feature. (don't mind the two lines weird lines on the tama; I was printing this during a thunderstorm and each line represent a power outage.
The author remixed this model.
I removed all the locking mecanism because the tolerance were too tight and it needed a lot of sanding. I also deleted the removable spike because it seems more solid this way. I created more space in the ken for the string knots.