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What have you made?

A fully adjustable 2 point sling. Works in a similar way to the british army sa80 one without the need for the clips.

 
ghostwalker said:
A fully adjustable 2 point sling. Works in a similar way to the british army sa80 one without the need for the clips.
Click to expand...
Interesting. I have a two-point sling for most of my guns but don't like how I can't cinch it tightly to my body if I need to like you can with the L85 sling. Mind posting what you made?

 
work continues on the Stribog. Inserted a 3D gearbox and hop unit into the upper receiver to work out what I need to do for the lower for it to all fit together. So far it looks like I will need to move the front retaining pin forward to accommodate the magazine. 2 main parts left to do, the barrel and barrel block and the lower receiver. I'll probably just use an existing M4 grip instead of making something from scratch.

View attachment 110411View attachment 110412

 
work continues. working on the lower receiver now. because it is going to use scorpion mags I'm going to make it have a paddle style mag release.

View attachment 110524

for anyone interested the smaller parts will be SLS aluminium printed, the lower receiver with be cast epoxy polymer, the outer barrel will be a metal 6 inch barrel extension which will be fitted to a 3D printed barrel block. The only question I'm mulling over right now is how to make the upper receiver. 

 
took a break from working on the lower to print out the upper on my fast 3D printer which sadly doesn't have the build volume to do it as one piece. Once printed I've glued it toether and I'm printing off some of the smaller parts to see what needs adjusting.

View attachment 110698

View attachment 110700

 
folding flip sites fitted and working under spring tension. Fake bolt works however I need to add a rod and spring so that it moves forward under it's own power. The idea is for the bolt release to be manually engaged, like the real thing, to hold the bolt to the rear and then when released the bolt shoots forward.

Turns out I'm 4mm too wide on the receiver so I've spent some time thinning the parts down to the correct size. I'm working from pictures from the internet and a pair of calipers so it's never going to be the exact dimensions of the real thing (unless someone has a real one and wants to share the measurements :)  )

I tried converting the upper receiver STL file to STP so that I could get a rough price for CNC'ing but for some reason my Freecad conversion doesn't want to work on the companies program for STP files. I thought I'd see how much it would be to have it SLS printed in aluminium but that was around 500 quid to best I figure out the STL to STP thing.

Here's a few photos of the current progress on the too wide body. I'm printing the new parts now so I can continue to tweek the design.

View attachment 110770

View attachment 110771

View attachment 110772

 
I should probably start my own thread instead of clogging up this one. Spent a bit of time thinning the upper receiver etc to be more correct in scale to the RS version. Printed out all the bits and put it together to see what needs adjusting and surprising very little it seems.

Work continues on the lower and it's about 70-80% complete.

In the first photo you can see the difference 4mm makes. (new on the left and old on the right).

View attachment 110851View attachment 110852

here's a mock up with stock and red dot.

 
Lower is coming along nicely. right hand side is pretty much complete however I'm going to make the fire selectors longer, tinker with the mag release internals a bit more and I'm toying with making the bolt hold open spring loaded so that when you pull back on the charging handle the bolt locks to the rear automatically. 

View attachment 111022View attachment 111023

ignore the horrible printing on the lower, I have some surplus Matt PLA which is terrible and I'm waiting on some more PLA+ to turn up.

 
Going for the Tokyo Marui prototype look here. Mock up in 3D resin proved fruitful as I need to adjust the butt cap as it's a bit tight and the designer is an idiot and managed to design the mag release spring tension the wrong way so that it always dumps the mag instead of retaining it. These should be easy fixes. 

View attachment 111213

View attachment 111214

Anyone want to buy one when I'm finished? :)

 
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