dangasaur

The butt cover I came up with works great.  Stays on with a nice friction fit but has a provision for locking down with a bolt too just in case you need to jump out of an airplane with it.  I have only tested this with the original butt plate so there may need to be some modification made for the latest quick-change version.

https://imgur.com/a/YMt0K

I'm working on my 5th Caliburn now and along the way I've made some modifications that I felt made the blaster more reliable or easier to print that I wanted to share with the community.

First, I created a ram without a reduced diameter for an o-ring.  The original part in PETG is extremely weak where the ram tapers down and as I'm not trying to eek out every last FPS a straight ram has worked out really well for me.  When printed in PETG this ram is absolutely bomb proof.  You can find the remix here: https://www.thingive...m/thing:2710039

Second, I've been printing the plunger as two parts and then super gluing the halves together.  I end up with a cleaner overall print with a perfectly crisp face for the sear.  I have not had any issues with the two pieces separating in PETG as long as both faces are scuffed up with some sand paper before gluing.  I don't have a separate remix/STL file for this as Slic3r can do this for you automatically.  See: https://imgur.com/a/3awAI

Modifications nearly done...

I've been experimenting with a modification to the receiver/magwell, spreader, and grip spacer where instead of capturing the all-thread with a nut I have a properly tapped hole.  This makes for a very clean install and hides some of the sharp edges and nuts.  I'm still experimenting so I don't have STLs ready but I will post here when they are published to thingiverse.

I wanted to hide or capture the all-thread and nuts on the butt of the stock so I made a cap with reliefs for the nuts/thread.

CaptainSlug, I messaged you on reddit because I wasn't sure how long the NerfHaven FNG purgatory lasts.  It if you need any updated PLA prints I'll print and ship them for free.  Anything to get this out of R&D faster!