This is my second ever 3D designed helm I have ever made and I want you to compare this to the actual helm which is in the link here --) https://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRxqFQoTCLus57Wy1scCFUGTFAodjQYI9g&url=http%3A%2F%2Fwww.drmgamecast.com%2F2015%2F06%2Fwhats-worth-buying-from-xur-61215.html&ei=0eTlVfv_DsGmUo2NoLAP&psig=AFQjCNHGn0ybJ3Qd2plBfypUXRtMXt4mgQ&ust=1441216073698609 tell me in the comments how I done and what to improve on next time when using the 123D software. Other than that there are 13 parts which will take about 130 hours on Cura to print 3.8 times bigger (the size I used) and I suggest you do not 3D print the helmet too small because the shell is not very thick, which wont matter on a big scale of the helm. Also note there is a flap of plastic which goes through the inside of the helm, rip it off like it is support structure because it is just a glitch from the software and i couldnt delete it. The files are supposed to be printed in order so its easier to assemble at the end and so that you print the smaller things first (I sliced the helm in levels), also the stp bit on the file means step so for example step 1. One more thing to note is that i 3D designed this helm like this so you can wear it so I suggest you do not use it as a decoration for your desk, you can find that in the link below from another designer who has a diifferent destiny helm which is very cool

 https://www.myminifactory.com/object/obsidian-mind-warlock-helmet-from-destiny-4935 please like this design and I hope you enjoy wearing your helmet!!!