Design of real visor

[Nicktendo]

But before sadly I need to do many work from the beginning.
I just realised I did HUGE mistake.
Sketch from picture where all is in PERSPECTIVE was projected to model that wasn't in perspective view.
So as you can see on photos, details on second layer are slightly deviating.
Karamba mia, I need to rollback again =(

I don't know man. Looks pretty good to me.

I thought about this two when I saw your method, but I figured since the visor model was pulls straight in front of the reference picture, as long as the transfered lines/corners were also transfered straight off, they'd line up on the model right where they should be.

 

[NZTK]

as long as the transfered lines/corners were also transfered straight off, they'd line up on the model right where they should be.

nope, they'd be exponentially larger toward the front.

 

[tubachris85x]

Thats how I make the EVA visors. I highly doubt alginate would last longer than plaster. Ultracal 30 is what you want to make vac masters from (cheaply)

Thats unusual then, because I was told by a popular clone armor maker that his vac bucks are made of alginate, and although didnt make many suits, he had used the same bucks more then once.

 

[thorssoli]

Thats unusual then, because I was told by a popular clone armor maker that his vac bucks are made of alginate, and although didnt make many suits, he had used the same bucks more then once.

Alginate is a flexible mold-making material used for lifecasting and dental impressions. The cured material is soft, flexible, and short-lived. In fact, the molds have to be used immediately because as soon as it cures it begins to shrink and distort. The only real reasons to use alginate for molds are because it is skin-safe and cheap.

The maker you were talking to may have used alginate in the course of making his vac-forming bucks, but I would bet that the bucks themselves were not made of alginate. Even cured alginate is squishy and would deform in the course of vac-forming the parts.

It's possible that there was a terminology problem in there somewhere.

 

[tubachris85x]

Alginate is a flexible mold-making material used for lifecasting and dental impressions. The cured material is soft, flexible, and short-lived. In fact, the molds have to be used immediately because as soon as it cures it begins to shrink and distort. The only real reasons to use alginate for molds are because it is skin-safe and cheap.

The maker you were talking to may have used alginate in the course of making his vac-forming bucks, but I would bet that the bucks themselves were not made of alginate. Even cured alginate is squishy and would deform in the course of vac-forming the parts.

It's possible that there was a terminology problem in there somewhere.

Probably, or he used "alginate" as a general name for whatever he really used. Im just relaying what Ive been told about it.

 

[NZTK]

more than likely he poured plaster copies from alginate moulds, that is a pretty common method

 

[tubachris85x]

more than likely he poured plaster copies from alginate moulds, that is a pretty common method

Meh. Oh well....I'd still prefer to get a company to produce a mold, rather then going through all those steps..

 

[Nicktendo]

nope, they'd be exponentially larger toward the front.

I don't know...

Before scrapping the model you have, try putting a "side" reference picture behind the visor and match up the points there too.

But I'm sure the 3D folk know what they're doing.

 

[rvb4life]

Bev, i must say that this stuff you do on Solidworks is insaneley amazing.

do you do this for a living? theres no way a normal person could do this kind of work (obviously im gonna get grilled for that one) and with a program like solidworks.


i would need to take 4 years of CAD in high school to learn it, and its too late now

 

[bevbor]

do you do this for a living? theres no way a normal person could do this kind of work

This mean I'm not a normal person? lol
I'm doesn't do this for living, I'm just poor insignificant computer support person in metal wroking facility.
(Mainly laser cutting and bending, little electronix assembly)
It uses SolidWorks for engineering, so I learned it a little.