Strength of 3D printed armour and strapping

[NikTrooper[501st]]

I'm very early in my build, in fact I don't have anything yet although my helmet's being printed. I'm planning on using the MCM files and get someone to print it for me. When it comes to the strength of 3d printed parts, what do people use to reinforce it? I'd rather not use fibreglass if possible, is there anything else people use?

Second question I have is around strapping. Do most people use a strapping system similar to the Stormtroopers or is velcro a better solution?

[DoggyDoc[CMD-DCA]]

I did my strapping similar to my stormtrooper costume with snap plates.  I know @Chaos has his very differently strapped which seems to allow for more mobility.

i have not printed a full set of armour, but some of the smaller parts such as buckles and D rings did snap and I reprinted with some flexible resin combined with normal resin.  As far as filament goes, I would suspect the full armour pieces will be fairly strong.  Hopefully someone with printed armour will comment as well .

[Blackwatch[CMD-DCA]]

The strenght of 3d prints come from the number of walls.  two walls (Perimters) on a print cuts the time in half or less, but its not very strong.  I print five walls, and instad of a .4mm Standard nozzle all my printers are set up for .6MM nozzles. I use low infil percentage (9 gyroid or cubic subdivision) , but thats just ice cream to stick the wafers together in an ice cream sandwich. 

If you take a look at almost any Etsy sale-with exceptions of course- almost all parts like helmets and blasters are printed in PLA. PLA is not strong, not heat resistant, cheap and very easy to print very quickly. You can get it on sale on Amazon for like 12 or 13 USD.  

Others use PLA+ which has an addititve which makes it a bit stronger and slightly more flexible.  There is even a new cosplay filament which is very lighweight and easy to sand. I almost want to buy a roll and print big parts and test them.  Just for my own curiousity. 

Others like myself use PETG, the stuff soda bottles are made with. it is more expensive, requires higher temps than PLA to print, and is somewhat harder to clean up and prep. I print it at 38MM per second vs 60-75 for common PLA.    I printed a tasset for my friend Kim sized down to her thigh size and it took 21 hours to print. It will withstand being in her car on a hot day for a few hours. Ive never had a PLA part stand up to my car in the heat. Ive had some really funny (not funny) failures. 

Hope this helps?