I found also in books of lutherie mentions of these toothed blade, I’ve never used them, but maybe I will try.
Thank you @russ

Thank you @SomethingNicer it is interesting. Will you post tutorial for making the winding machine? Do you know if there is information about how to make pickups that sound like blues, jazz etc… or as guitarists like SRV etc…? I…   Read more»

Thanks @siddharthmehta
Since the last posts I decided to correct it with the suggestion of @jamesalexandermcmillan
It worked well, only a thin line can be visible from the sides, but it is almost invisible.
 

Thank you for your comments.  I have finally weighed the wood blank, and obtained the density of my wood. Then I have weighed the neck and fretboard, I have weighed also apart the electronics, mechanisms, bridge, etc…  To this total,…   Read more»