[Indie's TLJ Phasma Build]

That is a game changer!  Keep up the good work.

 

Rounding off would be good, just have to keep within the overhang limit of printer.  I wonder if a little pre-bend might help for mobility as well.

[Themaninthesuitcase F-11D Standard build]

Great work!  I just found your post as I was investigating battery solutions for the blaster.  I tried 18650 cell and it fits well in the raise section and powers 3.3v arduino well.  I was looking at using this, https://www.thingiverse.com/thing:2847497, before I saw your solution.

 

I like your idea of the endcap magnet to connect to the main blaster.  One suggestion on the magnets/screws, if you use non-stainless screws, you can align the magnets to attach directly to the screws instead of having magnets on both sides.

 

Paint should cover the resin, might need a couple coats of black to remove the see through nature of the resin.  I am using resin and tested with just adhesion promotor and 1 coat paint/clear and seemed good enough.

 

I am currently working on modifying E11 blaster electronics to add F11 sounds and options for light and stuff.