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get me a curiosity....

  • Thread starter Thread starter OnoSendai
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maxopus said:
How are masters modeled?
Are you using clay and from this the negative silicone rubber or are you adopting other systems?
Click to expand...
Clay? no, the traditional method is to work by hand every kind of material precisely "workable" but compact, generally plasticard, brass, aluminum etc.etc.

then came the cad and everything changed (for those of course able to know how to use it), for example I abandoned the traditional method to design everything with sw, then prototyping the pieces from a service, preparing from that silicone molds and to finish printing with the resin.

the problem, it is here I come back to topic is that I am not satisfied with the quality of prototyping products, I realized that, even spending certain figures (and I still can not because I am in an ultraniche market....) the surfaces suffer a lot and are forced to intervene heavily.
I understood thanks to someone before I should go on the microfresatura but I don't dare think of the costs and everything.
 
OnoSendai said:
Clay? no, the traditional method is to work by hand every kind of material precisely "workable" but compact, generally plasticard, brass, aluminum etc.etc.

then came the cad and everything changed (for those of course able to know how to use it), for example I abandoned the traditional method to design everything with sw, then prototyping the pieces from a service, preparing from that silicone molds and to finish printing with the resin.

the problem, it is here I come back to topic is that I am not satisfied with the quality of prototyping products, I realized that, even spending certain figures (and I still can not because I am in an ultraniche market....) the surfaces suffer a lot and are forced to intervene heavily.
I understood thanks to someone before I should go on the microfresatura but I don't dare think of the costs and everything.
Click to expand...
putroppo the additive prototyping suffers from its basic weak point, the stratification of materials.
it is still not possible to reach such a thin layer that it does not make visible the defects, especially in the curved parts almost tangent on the xy plane, which are even more evident on the very small dimensions.
the milling does not have this defect, on the costs I can not tell you, you should contact a lot of companies that deal with micromechanics to realize what they are.
the ideal would be to have a minimum of pressing so as to make microfusion molds (in aluminum I think it would be better).
 
I'm worried, from what you say, there's no solution. And yet I've heard about cars, it's rapid prototyping that can get to the penny, right? Who has these machines?
 
Er Presidente said:
I'm worried, from what you say, there's no solution. And yet I've heard about cars, it's rapid prototyping that can get to the penny, right? Who has these machines?
Click to expand...
What do you mean by cent?
slice from 0.01 mm ? I don't know if the laser sintering can reach those levels.
The abs wire additive, the photopolymers and the chalk powders know that they don't come that long.
 
questa:
http://formlabs.com/should be a step ahead of the usual makerbot and company, of course for an advanced amateur use, the problem is that they do not have for now a distribution and assistance in Europe at least, I would buy it tomorrow for what I do would go great.
 
to make models so detailed I would recommend to evaluate 3d envisiontec printers.
the stampanti envisiontec hanno un'High resolution and a special layering technology that allows to obtain incredibly smooth surfaces.

the printers realize the prototyping that will serve as master's for production without the need to waste time in long sanding and finishing operations.
There are also printers, with greater work area, able to realize the production direct of many models per day.
envisiontec293.jpg
 

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Hello.
we have already done something very small and difficult.
specifically the cannons of a yamato battleship and other things.

I think there should be no problem.

I have finished pieces without supports

Let's hear it.
marco.panizzoli@3dz.it
 

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I know this job, I was contacted by those who are doing the yamato, the speech of the perfect surfaces however is more complex and articulated, come into the field especially economic factors that currently small low budget artisans like me can not (and do not want) face. as I have already said in other threads currently mold by shapeway for two very simple reasons; the online quote in real time and the most advantageous prices of the services here from us. As for the imperfect surfaces (for my personal taste) I am satisfied and I work on it with various measures, i.e. elbow grease oil.
 
Okay. but send me models to see if our prices can be interesting does not cost anything, usually for small pieces we are very competitive and good ratio quality*speed/price.

If you need, you know how to find me. available.
marco.panizzoli@3dz.it
 

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