shape violin background

[Ezio Olivato]

thanks to the exercises on the hard hoops!! !

 

[Ezio Olivato]

because of the inaccuracy of the sections it becomes difficult to correct a table without knowing the exact characteristics.
If carry had time to post a correct table maybe you could go further, but it is still a long and slender job, that if faced with due patience some result you could see.

 

[carry]

I am pleased to see that there is interest in this exercise, it means that you want to grow.....
I'm sorry but for the moment I can't post a proper table because it doesn't exist.

seeing what has done ezio (compliments) I think it is the right solution n° 3 loft two for the round part of the heads, selecting the two sections at 90 degrees with relative guides, side, + one for the central part selecting 5 sections + the side guides... Do you confirm this?
Hi.

 

[Ezio Olivato]

I am pleased to see that there is interest in this exercise, it means that you want to grow.....
I'm sorry but for the moment I can't post a proper table because it doesn't exist.

seeing what has done ezio (compliments) I think it is the right solution n° 3 loft two for the round part of the heads, selecting the two sections at 90 degrees with relative guides, side, + one for the central part selecting 5 sections + the side guides... Do you confirm this?
Hi.

carry I did not use the loft command because of the inaccuracies in the construction of the sections.
the process I adopted was simply extruding the base profile, extruding the side profile and performing the "interseca" command of the two generated solids. just to have a base to reflect on, here.
after that considering the fact that basic mathematics is quite complex I thought that you could split the basic shape into the six shaped sections and then try to make the extrusions of the individual sections, joining them at the end and making final adjustments. at least this was my idea of procedure without using lofts. which to be used require closed profiles, which in the design are not there!
Thank you for your compliments!

 

[carry]

ok is true the sections are not right so you could not use the right loft.
but admitted to creating the perfect sections the 3 lotfs do you think the correct procedure?
Give me your opinion.
Thank you.
Hi.

 

[Ezio Olivato]

you can generate it with the loft command, but you only get surfaces and not a solid!
depends on what you have to do with drawing, whether to feed it to a cnc machine or what else?

 

[carry]

I'm interested in making the project as precise as possible.
finished the project you could also be eating at a cnc machine.

 

[Ezio Olivato]

to work with the loft command, you must use the poly3d in the construction of the sections, and then perform the modeling for surfaces. but be careful that the surfaces are not as easily modified as solids. for this I had thought to use solids and boolean operations.
you can always get the same result with different methods, each typically uses the one with which you are more familiar. even if the purpose of the project is the one that commands.
good work anyway!

p.s. uses the orth command to build the mathematicians... of the sections otherwise you compose your life.
Hi.

 

[AntonioV]

feed it to a cnc machine

great ezio,
He forgives the question as ignorant (you know that I'm just releasing computers).

Are you sure a numerical control machine is able to sculpt a wooden block?

If yes, it's not like you could report a few videos of such an operation, because in the company I blocked youtube for my users. . quorum egoAhime.

: )

 

[Ezio Olivato]

is called carpentry pantograph for the 3 axes, and is more than enough for the bottom of a violin. the problem is to generate the file properly! I look for if I find qulc link it!http://video.google.com/videoplay?docid=5473109713235586120#but says it is not available at the moment!
Hi.

 

[carry]

I don't want to take advantage of you, but I see you know more about me.
I have the sections in pdf, you know how to get the right dwg, there is a converter that works well?
Thank you very much for the advice, as soon as I have the right sections
Maybe the place.

greeting and thanks
carry

 

[Ezio Olivato]

hello!



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I had contacted this site for conversions from pdf to dxf
proof is free!
But you could post only pdfs, they convert with corel in dxf, it's a bit slender but you can doeee!
Hello and please
Entity

 

[carry]

Thank you.
very kind
good make
Hi.

 

[lattu]

Have you thought of using the surfaces?

 

[marcof]

I'm interested in making the project as precise as possible.
finished the project you could also be eating at a cnc machine.

I have not yet been able to understand the ultimate purpose of this blessed violin fund at cad. Depending on what you're going to do, the advice may be different.
Could you explain it to me?

 

[carry]

already the fact that someone testifies for me, means that it is an operation
not banal, well also with the surfaces, but better stay on solids, more precise
but above all they feed to cnc machines.
for marcof.. for the moment I am studying what is possible to do, could be born collaboration with a liuthier. for which perfect models, cnc etc..
Hello and thank you all.

 

[sampom]

No!
a cn no violin, please. .

greetings
Marco:smile:

 

[marcof]

already the fact that someone testifies for me, means that it is an operation
not banal, well also with the surfaces, but better stay on solids, more precise
but above all they feed to cnc machines.
for marcof.. for the moment I am studying what is possible to do, could be born collaboration with a liuthier. for which perfect models, cnc etc..
Hello and thank you all.

So, I make some considerations, then you see how to adjust.

If you have to realize faithfully, I said fe-del-men-te, the various parts that make up a violin to reproduce one with a cnc machine lets lose autocad, you need much more.

any type of cnc processing you will adopt the surface finishes will always pity is the costs will be stratospheric; predict the overmaterial to allow the necessary manual finishing for painting is not at all trivial because it depends on the characteristics of the single piece of wood.
above all the processing of particular wood such as the tiled maple with which the bottom and the handle (with attached curl) can not be carried out with the milling without taking into account the direction of vein and tilting (which, again, depends every time on that material) , penalty untolerant chips and obviously a cnc machine has a milling that always rotates in the same direction as the working strategy (type)

typically the realization of this type of components is dedicated to industrial productions of next level to the infimo and however it is always about semi-finished. no one sane and producing tools of true lutery would work a tiled maple bottom whose cost of only wood can reach a few thousand euros with an automatic machine risking having to throw it in the fireplace and treating it as if it responded to vibrations in an identical way to all others

in the case, having to repeat the external form of a certain type of instrument model it is enough to make a sample and reproduce the semi-finished of the others with a copying pantograph, manual, simple and from the irrisorio cost, without uncomfortable cad, cam and cnc

in the background and in the harmonious table as you will know is inserted a perimeter decoration, called thread that emphasizes the design and shape in the plant of the instrument. This thread is inserted and glued into the appropriate channel excavated parallel to the outer edge when the surface in that area is not yet fully carried to its definitive form. after the gluing of the thread, which leans still slightly, this is shaved to the thread of the final surface provided, realizing that part that is called "sguscia", thus completing the external form of harmonic table and bottom. Of course, you can't think of framing the bottom to its final shape before the thread, so you should also predict the overtangling material. In short, a blood bath and a useless waste of resources, justifiable for the industrial production of 200 euro Chinese violins including custody and bow

not within the merit of the processing of the curl and the inner face of tables and bottom because perhaps they are already abundantly ot but I think you have intuited what I mean

recapitulating, if your friend is a real luthier (note the capital), he can save himself 4-5 hours of roughing work and first finishing with a manual copyer, if he wants to go beyond me..... ... cow boia, I've finished the water in the steam crusher sebatory, I can't express myself anymore... ::smile:

 

[Ezio Olivato]

"boy, the forum works like the computer: if you enter munezza comes out munezza, but multiplied by a factor n
therefore content with what has come out, because it is the logical consequence of what you have entered"
©meccbell
quoto!

 

[marcof]

"boy, the forum works like the computer: if you enter munezza comes out munezza, but multiplied by a factor n
therefore content with what has come out, because it is the logical consequence of what you have entered"
©meccbell

quoto!

I say very bad because you do not understand who you answer and what.
What do you mean? referring to the writing of who?
quoting my post? What does my sign mean then?