make aluminum mold

[MMS]

I would like to make the 3d model of the female mold that I will need to print in carbon a form similar to that in photo.
Could you tell me what is the most appropriate method to first create the object model and then from this the mold?

 

[luragne]

I would like to make the 3d model of the female mold that I will need to print in carbon a form similar to that in photo.
Could you tell me what is the most appropriate method to first create the object model and then from this the mold?View attachment 34945

how much you know carbon doesn't print!!!
I'm still able! !

 

[Andrea Bellachioma]

to obtain the 3d model of the object you could use a 3d scanner so that you have a cloud of points and then extrapolate the mathematics of the object, then insert the file in neutral format (opportunely treated by software cad) into a software cam..et "quasi"voila. With regard to carbon printing, I can't help you, but I expect some answers from the most experienced. I'm very curious.

 

[MMS]

and how do you do an object like that without printing it in a mold?
the molds must be two, one superior and one lower, if you look well at the photo you see the line of division of the printed.
However I don't have the object, I just have the picture of what I would like to do and I won't do it exactly the same.
I need to know which feature to use to make such a form, I tried with variable sez. sweep but I can't, I also tried with boundary blend but nothing. Obviously before I did the sketches of the profiles in the vertical and horizontal planes.

 

[Vittorio]

a greeting to mms and all participants of the discussion.

is right luragne, carbon does not print.
It's a sheet, fabric type, which stretches into the aluminum mold and solidifies by brushing over chemicals that catalyze everything.
a process that is also adopted for the construction of the glass hulls.

so I allow myself to explain the procedure:

1) build the 3d model of the piece to get.
2) from the 3d model of the piece are obtained the negatives of the 2 3d models of the semi-tastes of the mold.
3) the 2 3d models of the semi-gusci are milled using the cam
4) rests the carbon sheet in the respective sedatives and brushes with the appropriate solvents
5) the two pieces obtained from the 2 moulds are glued together.
6) once glued.. draws to eliminate joint marks.

As for the part of modeling, the piece and the semi-tastes of the moulds, I am able to.
or... provide me with the 3d model of the piece and I follow the 3d models of the 2 molds.

 

[MMS]

a greeting to mms and all participants of the discussion.

is right luragne, carbon does not print.
It's a sheet, fabric type, which stretches into the aluminum mold and solidifies by brushing over chemicals that catalyze everything.
a process that is also adopted for the construction of the glass hulls.

so I allow myself to explain the procedure:

1) build the 3d model of the piece to get.
2) from the 3d model of the piece are obtained the negatives of the 2 3d models of the semi-tastes of the mold.
3) the 2 3d models of the semi-gusci are milled using the cam
4) rests the carbon sheet in the respective sedatives and brushes with the appropriate solvents
5) the two pieces obtained from the 2 moulds are glued together.
6) once glued.. draws to eliminate joint marks.

As for the part of modeling, the piece and the semi-tastes of the moulds, I am able to.
or... provide me with the 3d model of the piece and I follow the 3d models of the 2 molds.

Perhaps the misunderstanding was born from considering the printing by injection of material while the process to which I referred is about what you described appeared the fact that I work with carbon pre impregnated with epoxy resin that is catalyzed in autoclave at the temperature of 130°c and the pressure of 5 bar. having the two shells made of aluminum you can also get a monocoque piece that comes out from the molds already pasted the above under.
the problem I can't solve is build the 3d solid model of the piece to get. Once I did that, I can do it. is it not that someone could tell me what process must be taken to get to the 3d solid model?

 

[tartufon80]

to obtain the 3d model of the object you could use a 3d scanner so that you have a cloud of points and then extrapolate the mathematics of the object, then insert the file in neutral format (opportunely treated by software cad) into a software cam..et "quasi"voila. With regard to carbon printing, I can't help you, but I expect some answers from the most experienced. I'm very curious.

Perhaps the misunderstanding was born from considering the printing by injection of material while the process to which I referred is about what you described appeared the fact that I work with carbon pre impregnated with epoxy resin that is catalyzed in autoclave at the temperature of 130°c and the pressure of 5 bar. having the two shells made of aluminum you can also get a monocoque piece that comes out from the molds already pasted the above under.
the problem I can't solve is build the 3d solid model of the piece to get. Once I did that, I can do it. is it not that someone could tell me what process must be taken to get to the 3d solid model?

Good morning, everyone!

Well, when I was dealing with carbon artifacts, I used the method described by Andrea. Perhaps it is not obvious to have a machine for dimensional control..., I worked as an employee. . .

try to follow, if you haven't already done, some tutorials on the surfaces: maybe some features are used among the examples that can be useful to you. I worked a lot starting from basic surfaces and then "trimmando" and rebuilding, until I got "good" surfaces (this is what I recommended to do who followed me in my work, and knew a lot, but much more than me).
I know that here in the forum there are really tough people on the surfaces. peek some discussion and you will see that you find people prepared and willing to give you some tips....:wink:

Good job!