3D Printing armour and props?

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Aiden26

Member
Hey guys, so in this post I would like to ask some question about 3D printing armour, Props, and the printers themselves. So first off,

Is there a way to scale models before printing them like in the pepakura software?

I noticed people that print helmets need to modify them so they can take it on and off. Is there a way that I can just slip the helmet on? Or is it based on the design?

I see there's multiple materials to print with. Which one is best for props and armour?

Is it possible to turn Pepakura files into 3D printable files?

Which 3D printers have a large platform? I understand it will cost more but I don't want a ton of parts to glue together.

I'm looking for Halo reach Helmet files along with Marine and ODST? The only helmet I can find is Master Chiefs Halo 4 Helmet.
 

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RogueTrooper

Well-Known Member
You question should be....."how long is a piece of string?"

You have too many questions and you're being lazy.

Try Google.....try the RPF search engine.

The RPF is not Costco.....

Think about what you really want to know...try Google for 12 hours and the come back and ask a FOCUSED question.

Rinse and Repeat;)
 

Aiden26

Member
You question should be....."how long is a piece of string?"

You have too many questions and you're being lazy.

Try Google.....try the RPF search engine.

Of course I tried searching.

1.Can't find file anywhere
2.

The RPF is not Costco.....

Think about what you really want to know...try Google for 12 hours and the come back and ask a FOCUSED question.

Rinse and Repeat;)
Of course I tried searching already.

I can't find any files
The videos I found about turning pep models into print barely explain anything at all.
All the printers I find have around the same platform
And I can't find much about Printed Helmets.
 

RogueTrooper

Well-Known Member
Of course I tried searching already.

I can't find any files
The videos I found about turning pep models into print barely explain anything at all.
All the printers I find have around the same platform
And I can't find much about Printed Helmets.
I just typed your search words into google and found a wealth of information and youtube videos...seriously...spend a day digging the net and then come back and ask a very FOCUSED question.

Seriously..it's not magic;)

- - - Updated - - -
 

cavx

Master Member
RPF PREMIUM MEMBER
@Aiden26 You should search X-Robots videos on YouTube. He prints all sorts of things and has to break his larger parts into smaller parts for printing. He then has to join them back together. Because he prints mostly in ABS, he can use acetone to join them.

He designs most if not all of his projects so can break them down. I am not sure how you would go breaking a Pep down.

So unless you have a really large printer, the answer is probably going to be a no.
 

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Exterminator

Active Member
Well, if gluing a few parts together is a bit of a strain, you could get a ZCorp ProJet 860Pro printer with a build volume size of 20 x 15 x 9 inches, but it will cost you over $121,000 ... never mind, think how much you'd save on glue. Hmmm. :unsure You would STILL end up gluing things together, even at that size, so no glue savings there, then ... or you could just pay someone to make them for you, no need to tire yourself out lifting that heavy tube of glue. :facepalm
 

Gordon Gekko

Sr Member
RPF PREMIUM MEMBER
Of course I tried searching already.
No, you haven't. This isn't some arcane subject that no one knows anything about. It's the tech of the moment and there are tons of resources on the RPF and the internet at large.

You really googled "3d printing helmets" and couldn't find any info????
 

TimSnowman

Member
I would also advise against printing helmets/armor, unless you plan on sanding/finishing them for molding. A 3d printed helmet/armor set would be ungodly heavy. ABS plastic is pretty dense.
 

docx

New Member
I would also advise against printing helmets/armor, unless you plan on sanding/finishing them for molding. A 3d printed helmet/armor set would be ungodly heavy. ABS plastic is pretty dense.
It depends on your infill settings, but you get into a "weight vs resiliency" analysis there. Using 3-D printers for making initial masters seems to be a better idea for larger objects, I agree. Time to print large objects is quite high, especially if the object is larger than your print bed can accommodate. The downside is, for someone who doesn't have casting knowledge (or a workspace to do it in), the idea of simply 3-D printing a prop is very appealing. Sadly, much like the X-Ray glasses that used to be advertised in the back of comic books, the reality is more complicated.
 

TimSnowman

Member
It depends on your infill settings, but you get into a "weight vs resiliency" analysis there. Using 3-D printers for making initial masters seems to be a better idea for larger objects, I agree. Time to print large objects is quite high, especially if the object is larger than your print bed can accommodate. The downside is, for someone who doesn't have casting knowledge (or a workspace to do it in), the idea of simply 3-D printing a prop is very appealing. Sadly, much like the X-Ray glasses that used to be advertised in the back of comic books, the reality is more complicated.
Agreed. But even low-density/sparse infilled prints get to be pretty heavy at that scale. I dunno, with any budget 3D Printer, the amount of finishing you have to do is comparable to just scratch building the piece. But you're totally right, not having the knowledge or resources to do that makes 3d printers that much more attractive.
 

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1. This one question is easily looked up, but to answer it, yes. You can either use CAD software or whatever you plan on slicing with.

2. It purely depends on the helmet. For example, the ironman helmet requires it unless you make it way too big.

3. It's really up to you. ABS is more flexible so less prone to breakage, but it can shrink. PLA is rigid and can break pretty easily but prints well and doesn't have the same odor. I would personally suggest using the prints as a mold for resin.

4. Only if you can convert them to .STL

5. Do some research on this. There are too many to list. Do you want pre built or like a rep rap diy? The i3 and the robo 3d are pretty good. Solidoodle as well.

6. All I can think is to look in thingiverse.com.
 
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zanderwitaz

Well-Known Member
If you're new to all of this and just want halo stuff, get some resin kits. I won't get into a debate here but if you're using someone else's file and printing them out (especially using some one else's printer as a service) then you're not really making it anyways. You'd spend most of your time doing finish work that could be spent on a far superior material (resin vs PLA most of the time).

I can point you in the right direction for nearly any halo bucket, and probably some armor sets too.
 

JOATRASH FX

Master Member
RPF PREMIUM MEMBER
3. It's really up to you. ABS is more flexible so less prone to breakage, but it can shrink. PLA is rigid and can break pretty easily but prints well and doesn't have the same odor. I would personally suggest using the prints as a mold for resin.
A good brand of PLA does have flex and is a lot less brittle than most resins. It's also a lot easier to glue if you use acrylic cement, which will bond it just like model glue and styrene. An 0.8mm shell with 15-20% infill would be OK for just about any prop or armor piece unless you are going to subject it to heavy pounding. (Obviously you have to model joints and connection points for proper strength.)
 
A good brand of PLA does have flex and is a lot less brittle than most resins. It's also a lot easier to glue if you use acrylic cement, which will bond it just like model glue and styrene. An 0.8mm shell with 15-20% infill would be OK for just about any prop or armor piece unless you are going to subject it to heavy pounding. (Obviously you have to model joints and connection points for proper strength.)
There are some decent PLA like Colorfabbs, but I would argue it would be too heavy and definitely not as strong as a mold. You can use plastics instead of resin, but don't get me wrong. It can be done and there are some good PLA options, but they arent as good as ABS.
 

TazMan2000

Sr Member
PLA by design, is supposed to be biodegradable. I guess it depends on how much exposure it gets to the elements, but I would assume that a wearable suit of armor may actually get more exposed than a model in a showcase. I'm sure painting will help seal the model, but is this prolonging the inevitable? I have a few samples from shows that I have attended and they seem still pretty solid, but I do live in a drier area. Has anybody had any problems such as this with PLA?

TazMan2000
 

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Aiden26

Member
PLA by design, is supposed to be biodegradable. I guess it depends on how much exposure it gets to the elements, but I would assume that a wearable suit of armor may actually get more exposed than a model in a showcase. I'm sure painting will help seal the model, but is this prolonging the inevitable? I have a few samples from shows that I have attended and they seem still pretty solid, but I do live in a drier area. Has anybody had any problems such as this with PLA?

TazMan2000
I guess I didn't mention it but I'm not wearing the armour right off the bat. I'm molding it and casting it in poly foam.
 

MEOWorksCreative

Active Member
RPF PREMIUM MEMBER
Even though PLA is biodegradable, no one really knows for sure how long it takes haha. I think you'll be fine wearing PLA stuff outdoors for years without any degradation. PLA is, however, sensitive to heat and can flex and bend if left in hot sun. This literally takes like heat stroke sun though!
 

JOATRASH FX

Master Member
RPF PREMIUM MEMBER
There are some decent PLA like Colorfabbs, but I would argue it would be too heavy and definitely not as strong as a mold. You can use plastics instead of resin, but don't get me wrong. It can be done and there are some good PLA options, but they arent as good as ABS.
I don't have any experience with printing ABS so I'll have to defer to you there (and but vacuforming it sure), a lot stronger than PLA. But a resin piece of the same thickness as a PLA print would be a lot heavier and MUCH more brittle (unless we're talking about rubber-mixed urethane of course). I printed a helmet faceplate a couple weeks ago, maybe 3-5mm thick overall at varying points and it weighs almost nothing compared to what it would if cast, and I doubt that I could snap it in two, which I could definitely do with resin. I've also printed a Colonial Marines armor knee cap test, with 0.8mm walls and NO infill (i.e. hollow space between the walls) and it is strong enough that I would troop in it. (Weak spots would however be strap connections.) From everything I've read about printed ABS, there's nothing to convince me that it would be better than PLA unless you wanted extreme durability. But to each his own of course.

PLA by design, is supposed to be biodegradable. I guess it depends on how much exposure it gets to the elements, but I would assume that a wearable suit of armor may actually get more exposed than a model in a showcase. I'm sure painting will help seal the model, but is this prolonging the inevitable? I have a few samples from shows that I have attended and they seem still pretty solid, but I do live in a drier area. Has anybody had any problems such as this with PLA?

TazMan2000
I think this is one of those things that gets a bit mythical after a while. It may be biodegradable on paper and if you subject it to the elements for a few years it may show some wear (and I suppose direct sunlight may kill it after a whilelike it does many materials, including resin), but I have seen no evidence at all that it's in any way more unstable than other materials for making props, with or without paint. (I've subjected PLA to a whole host of stuff and beyond partially dissolving in acetone it's pretty resilient.)

***edit***
What is wrong with the RPF this week? Every post I make, on whatever computer, gets posted twice!
 
I shouldn't have used the word resin. A foam is really what I meant when it comes to armor. As far as PA vs ABS, it is a massive difference. The PLA by colorfabb is closer though.
 

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