Fade

That is one of the advantages. Do you know how much could it be the tension at that time? I 'm not relating the different tension on treeble with the use of nails.

I mean the wood maybe will break around to the position of the bolt? Because if we use only one there is more "work" in the same place I think.

Only one bolt? Maybe it will break more easily only with one? Cause the tension is all on 1 bolt.

I like this example! Also runners with bottles on their hands, the movement of arms + bottles(mass)give you like a push, but if you use your arms with the bottles not in phase with the movement of the legs you will have them working on opposition phase and this will breake you!

It would have sense. But with mortise we have a difference of mass, for me the neck will be good fixed and fitted but the complex of the top wood + neck will give less resistance. For me a little bit of mortise is ok but not too deep. Then i wouldn't do the mortise perfectly perpendicolar to the longitudinal axis

Oooooo woow that's the first time I see a picture of this! Thank you so much Davide! It's about what is locical that we should discuss! There are other factors to consider...If we consider the asymmetey of the tensions cause E and A strings pull more than G and D, maybe also an asymmetry of the position of the nails could be considerable! Even the angle of the neck laterally, I thought maybe on the treeble side to make it less "perpendicolar" then to the other... The neck pulls more on the treeble side so we need to give more resistance on that side maybe...

And so which is the consequence? Will it be more easy that it will break in that part? Or you cannot take advantage in that area cause with less resistance?

Smart idea but I think I'll lose power with this optional.

That's sound good! But a nail is more thin then bolt with nut and washers...but in the way you say maybe it will not break easily like nails... what do you think about screws?

Because I made this topic for asking if someone knows where the ancient liuthers put the nails and how many and if the position I drawed could have sense for you...but nobody gave me an answer about it. The mortise is not related to this topic but we are here and I wanted to talk also about it... When did I say I want to save weight? With the mortise you save more weight I think then without... I said that with mortise we could have a changement on the phase of the vibrations between body and neck and it's possible to have an opposite phase,but I cannot verify that for the moment.

Yes but I would like to plan where to put nails , how many and the geometry of the top block to have everything connected with a reason... I know that nodes and antinodes are in different places for different modes but I consider the fundamental mode cause I think has more importance. Of course modes change when you fix that piece to something else, so would be good to understand how it willl change and to fix it in the "right" place. I love math and physics would be good for me to plan other stuff too like angles of the strings between bridge and tailpiece and lots of other things... like angles,masses of the components and geonetry to balance the tension of the strings that is algo pulling more from one side than to the other so maybe an asymmetry would be right to do... I'm not worried but enthusiast of experimenting!

I was thinking english language didn't have so many words...I was wrong!

Ahahahahahahah you are right man! Sorry now I know it! Yes I talk about the mortice!

Thank you for your attention I hope to don't make you lose time uselessly! When I say "hole" I don't mean the hole made by the nails but the hole that is digged inside the top block for adapting inside it the neck. There is a not negligible difference of mass if we make this hole inside the top block or not in my opinion.