FPA-18 Lamia V1.1 Pump Action Spring Blaster.

thingiverse

SALES OF THIS PROJECT AND ITS DERIVATIVES ARE NOT ALLOWED WITHOUT EXPLICIT PERMISSION. VIOLATIONS WILL BE FORWARDED TO THE APPROPRIATE INSTITUTIONS. Be sure to read the whole manual for the best result and to avoid easily preventable issues. Hardware list is in a picture attached. The Lamia is a springer blaster built to be strong, reliable, simple and easy to build as well as smooth and rapid cycling in action. It uses either angled or straight Talon magazines and (in a standard package) a K26 spring (175-200 FPS heavily depending on your dart type and condition). Lamia also features a standard Nerf stock attachment point in the back and a Picatinny rail on top. The printing and building process is easy, fast and minimizes waste due to using almost no supports, none of which are slicer generated. they are built into the models. Use the provided M2.5x10mm self tapping screws by default unless told otherwise. As an alternative to jig cutting, a drawing for manual hole drilling is also provided. In addition you will need: - Hot glue and/or CA glue (superglue) with activator. - Silicon oil lubricant for the plunger O-ring. File guide: - AngledMagStuff/StraightMagStuff is for picking your magazine configuration. Angled uses angled Talons and straight uses regular straight Talons. Parts tagged with 16mm are for 16 mm OD or Caliburn-spec sized barrels. - SmallSpringStuff/LargeSpringStuff is for picking your spring diameter. SmallSpringStuff is for K26 sized springs and LargeSpringStuff is for K25 sized springs. When using springs other than the default K26, the max length you can fit in there may vary. - Bolts is for picking the bolt that matches the internal barrel diameter and stretched the o-ring appropriately. The suggested metric barrel uses 13 mm and so do most others. Pick the closest ID to the barrel you'll be using. - PumpGrips is for picking the pump grip of your preference. There are horizontal, vertical and picatinny grips available. Parts tagged with 16mm are for 16 mm OD or Caliburn-spec sized barrels. - Triggers is for picking the right trigger weight for your blaster. Heavier ones need more force to pull but are snappier and more immediate. - Utilities is where you'll find the jig files and the printed wrench to help screwing nuts on a threaded rod assembly. Print instructions: - No supports needed though on the Plunger it might give you a nicer finish. Same plunger also benefits from using a brim. - .15mm layer height (if using a .4mm nozzle) - Min. 5 perimeters for the plunger - Min. 3 perimeters for everything else - Don't use trash filament, no matter how well designed, springers require a degree of material integrity. - When post processing, be sure to nicely remove any elephant's feet with a scalpel or a knife. The SpringCap requires you to remove the manual supports for the stock attachment slots. You can do so with a small flathead screwdriver. - Print orientations shown in pic provided - Requires printer build dimensions of no less than 200mm^3 - For SpringCapCover DON'T FORGET to enable bridging detection settings. Otherwise you'll have to get into the pin hole with a file and clean it up Assembly instructions: 1. Slot in the MagRelease with a spring and secure it with a 20mm pin. Use glue on the spring if you're having trouble. 2. Secure the trigger inside with a 32mm pin. 3. Slot in the Sear, secure with a 40mm pin. 4. Lubricate the inside of and slide in the PC plunger tube. Use silicon oil. Wash your hands afterwards or you might get the grease all over stuff. 5. Drop the spring in the Sear's slot and screw on the CatchSpringSeat. Again, you can use glue but this shouldn't be hard to insert. 6. Grab the Bolt and screw on the bars using the M2.5x15mm screws. Make sure the Bolt's pusher is up and the offset holes on the bars are down. Put on the small O-ring seal on the breech face and a big one on the back of the bolt. Insert this assembly through the back on the blaster. It should slide inside the PC tube smoothly. 7. Screw on the Picatinny and Grip. 8. Glue in the aluminium barrel into the Shell with either hot glue or CA glue. The latter works much better with less risk of glue dripping into the chamber and causing issues. 9. Glue the orange tip on your preferred foregrip. Screw the foregrip assembly on the bolt arms. It should slide freely (just hold the PT while testing). 10. Put on the remaining seal on the Plunger. Slide it into the plunger tube. Press the trigger while doing so and slide it in the whole way otherwise the spring insertion will be problematic. 11. Put in the PTSpacer. It should not disturb the operation of the trigger and be flush or slightly within the Shell. 12. Drop in the main spring. 13A. Use the M3 nuts and springs to secure the SpringCap onto the blaster. 13B. (Alternate, VERY experimental) Use the M3 nuts and threaded rods to secure the SpringCap to the blaster. If you don't have a small enough socket wrench to fit over the nut on the spring cap, use the printable one provided in Utilities. 14. You can test the blaster at this stage. If everything works, proceed. 15. Use hot glue to secure the nuts inside their slots so that if you ever want to swap the spring they will stay in place. Do NOT use CA glue as it can lock the screws in permanently and that will be a bitch to remove if you ever need to swap your spring. 16. DONE BONUS - How to use the bar drilling jig. 1. Print both sides of the jig. 2. Cut two pieces of 15x2mm aluminum bar that fit perfectly inside the bottom jig. If they're a bit wobbly use hot glue or double sided tape otherwise your holes will be different on each bar. 3. Screw on the top of the jig. 4. Use a 3mm drill bit to drill through the holes on the jig into the aluminum bars. Be sure to drill nice and perpendicular. Don't forget to have a piece of wood or something down below so you don't drill through your table. 5. Disassemble the jig and enjoy! Change Log: V1.1: - 16 mm OD barrel support - The orange tip is now attached to the foregrip, meaning that you can use shorter barrels if you choose to. - Experimental K25 size spring support (use the provided alternate large plunger and spring cap for this) - Very very experimental alternate threaded rod assembly. Should greatly improve strength in case you want to go nuts with the spring weight. - Improved bolt seal, multiple bolts offered for various barrel IDs (cross-compatible with earlier version) - New tactical picatinny foregrip - 3 varying sensitivity triggers available (soft is the previous default) - The gap behind the grip is now filled in by an extension from the sear spring cradle (cross-compatible with earlier version) - Silicon oil is now the heavily recommended lubricant - Slightly nicer and more aesthetically consistent mag well on the straight mag version. - Added a little cap to hide the stock attachment point if needed Sourcing helper: Plunger tubing: Good keywords: Tubing, PC, Polycarbonate, acrylic, metric https://www.aliexpress.com/item/4000480608739.html?spm=a2g0o.productlist.0.0.c49257a7zepnAl&algo_pvid=a669df0a-605d-4244-9249-9bc5b1cf07c7&algo_exp_id=a669df0a-605d-4244-9249-9bc5b1cf07c7-2