**EDIT: I changed wadding and slug height as the slug looked odd for being so tall. FUZZY SKIN IS ENABLED IN THE 3MF FILE! MAKE SURE YOU CHANGE THAT SETTING IF YOU ARE PRINTING ANY OTHER COMPONENTS THAN THE TAN WADDING!!!**

Lots of requests for a Slug version of my 12-guage shotgun shell, as I made a prototype Assembly/ Cut Away a while back, but never took the time to publish it. So, here it is!

This is a 12 gauge/70mm Shell SLUG Cut Away, model. These parts don't NEED supports, although, I use PETG support on the brass head for the lettering on the case head, as well as the concave part of the actual slug. This concave portion can't REALLY be seen, so, you really don't NEED to use supports on either of these. Also, make sure you're printing with the main shell body facing down, otherwise it will print a TON of support to print the roll crimp. Use a Quality hobby grade CA glue for assembly. Do NOT use cheap gel glue from the store or it WILL frost the parts as the glue off gases during curing( Loctite, Gorilla brand, etc). If you experience some off gas hazing, a tiny rub down with petroleum jelly, followed by a good wipe down with a soft cloth will make it look good as new. A little superglue goes a LONG way, use just a couple small drops!

Assembly is pretty straight forward. Just referencing the picture will give you a pretty clear idea if my ramblings below are too confusing. Generally, I assemble as follows/ here are some tips. The Wadding should be printed with Fuzzy Skin, as it very closely makes this part resemble the real felt wadding. You will see both fuzzy and non-fuzzy in the pictures so you can decide for yourself.( I have included reference pictures in the picture section for assembly, in what SHOULD be the right order):

• Assemble the primer separately and allow to dry before gluing it into the brass case head.
• Assemble the stuffing, gunpowder, bottom of the wadding into an assembly.
• Glue in the completed primer into the Case head.
• Use the assembled primer/case head as an alignment tool to install the wadding/gunpowder assembly.
• Slide Slug into the Shell body to the top.
• Insert the Slug cards and wadding in behind the slug in this order: White card, Tan cushion, Bottom White Card. Add a drop of glue between the slug bottom, first card, cushion, and bottom card. You could glue all these into the body once assembled, or not.
• Loosely place the wadding ( the X-shaped piece) on the case head assembly, slide the shell assembly down. Add a few drops of glue to the BOTTOM of the wadding cushion, and adjust the position. Honestly, the wadding cushion can go either way, but, the large gap side of the X-shaped wadding cushion usually faces, Up towards the Slug.
• Slide the assembly apart. Add a few drops of glue to the shell body on the bottom, and the upper side of the X-Shaped wadding cushion and slide the assembly together. some adjustment might be needed.

If these directions are too confusing, and they probably are, just do this. Use the case body to align the Slug, Wadding Cards, Wadding, and Wadding Cushion. It can act like an alignment jig. Assemble the lower parts separately, and slide the entire thing together.

Filaments I use( The Plates in the 3MF file are labeled with color options, too):

• CC3D PLA Silk- Bronze/ Brass(Case). You can print the Slug this color, too.
• SunLu PLA - Red (Shell Body) Any color can really be used for this, green, yellow, blue, and black look really fantastic, too.
• SunLu PLA - White ( Wad components, Shell Cap, and Stuffing)
• CC3D PLA Silk- Gold/Copper( Primer Cup, Primer Anvil, and Brass Case)
• CC3D PLA Silk-Silver( This can be used instead of the gold/bronze silk pla for the Slug, primer cups
• SunLu PLA- Light Tan( Wadding)
• Creality/Giantram PLA-Black or Dark Grey( Gunpowder and Primer Compound)