Cynthia - Bolt Action Blaster (Nerf Homemade)

prusaprinters

Cynthia is a bolt action Nerf blaster that uses half dart Talon magazines! Firing Demo: Blaster Overview: https://youtu.be/mIW0dAyOCv0Customization Overview: https://www.youtube.com/watch?v=mZe6dWdQUs0Assembly Video: https://youtu.be/j310YjRcwpU  SellersA full list of non-US sellers can be found here: https://www.stuffbysilly.com/wheretobuyHardware is available from these sellers:OutOfDarts: https://outofdarts.com/products/cynthia-hardware-kitSilverFoxIndustries: https://silverfoxindustries.shop/collections/new-products/products/cynthia-hardware-kitFully printed blasters are available from these sellers:OutOfDarts: https://outofdarts.com/products/cynthia-3d-parts-hardware-kit  ReviewsVideos:Coop772 Captain Xavier: https://youtu.be/w24jp0K5Wfk?si=fWUyEQeJ973HoaARBoomstick Mods: https://youtu.be/WF5V2YcIIjc?si=WsV3GZjRpdS0lTr-ZDL (China Spec): https://youtu.be/mkXsqYBOBpE?si=tJq3lU1MIqGpPgKbWalcomS7: https://www.youtube.com/watch?v=UhGpRX_KlXEBansheeIndian: https://www.youtube.com/watch?v=CzInCRDko88 Optional PartsThere are many variant parts for Cynthia:Left and right handed parts (for the bolt action)Front Ends Cynthia text or no Cynthia text Ported and unported Side rail or no side rail Slim front end Stubby short front endTwo grip stylesSeveral trigger stylesThumbhole stock or no thumbhole stockFully enclosed plunger tube travel space, or open plunger tube space Fully enclosed is good for people with beards, to protect yourself from hair-rippage during primingTons of bolt handle options and lengthsLocking bolt handle (for "realistic" bolt action coolness) or freely-moving bolt handle Optional ball detent makes the bolt handle clicky as well, which feels really good.Optional muzzle with extra bottom picatinny (for bipod mounting)Optional picatinny rail replacements with no picatinny, for aesthetic sleeknessOptional front gripMagwell panels with or without elastic holes, respectively for use with elastic or a spring on the mag releaseetc etcPerformance:SpringBarrelFPSk2412" .527 ID~ 100 FPS78812" .527 ID~ 150 FPS k25 / SF25TC14" .527 ID~ 220 FPS (higher with .509 barrel)SFI X3 Lynx Spring14" .527 ID~ 225 FPS (higher with .509 barrel)k2630cm 13mm ID w/Chamber~ 230 FPS11KG Longshot35cm 13mm ID w/Chamber~ 250 FPS If you don't see your combo here, this might help: Cynthia performance can be roughly approximated by using CaptainSlug's Talon Claw T4 performance estimates (in regards to barrel length and spring choice) due to similar plunger tube volume.  Print InfoCynthia uses less than one 1kg PLA spool (if you were to print it all one color).Infills:Black: PlungerRod, PlungerCap, 100% Gyroid, 5+ walls. ThumbholeStock needs a brim. Everything else, 20% Gyroid, 5 walls.Orange: BoltBase, BoltHandle, FrontGripKeeper, Catch, CatchPusher, PlungerHead, 100% infill, 5 walls. BoltHandle, FrontGripKeeper, CatchPusher need brims. Everything else, 20% Gyroid, 5 walls.Green: MagwellBack, Magwell_L, Magwell_R, Grip_L, Grip_R, 100% infill, 5 walls. All the tall green parts benefit from a brim. To be safe, I recommend you print each tall part one at a time. Everything else, 20% Gyroid, 5 walls.Some parts have tight tolerances (mainly the dovetails in the catch area on the top cover print). Sanding and/or filing is recommended to make the dovetails go together smoothly. The top cover part can be broken if you try and force oversized dovetails together.Note: If your trigger has a heatset insert for the threaded rod, MAKE SURE TO USE THREAD LOCKER (after adjusting the trigger pull take-up during assembly). HardwareFull hardware list: https://docs.google.com/spreadsheets/d/1t6-6BqBstn1Ad-zIxsB0FqWth3nB00lHC9SVksAbSmY/edit?usp=sharingH4 bar spec for those interested:H4 bars can be cut down from C4 bars using the bar cutting tool (included in Cynthia files).  AssemblyVideo: https://youtu.be/j310YjRcwpUCatch assembly: https://youtu.be/D5Ouzac-vMsPlunger Tube Gluing Guide: https://www.youtube.com/watch?v=0BNuwjhlNqI (Please use two part epoxy. Super Glue isn't as good, but it'll do in a pinch.) Design lineage:Cynthia began with me figuring out how to fix the issues with CaptainSlug's Indra blaster, but I pretty quickly realized it would be easier to design a whole new blaster from the ground up, rather than fix the Indra part by part (Cynthia contains no original Indra parts). Thank you Slug for paving the way to this blaster being great :) Misc.If you build any of my designs, I'd love to see yours! Feel free to message me on Discord (Sillybutts#5905) or tag me on a post on Reddit (u/SillyTheGamer).Thanks to OutOfDarts, Diessell, Virus22386, BoomstickMods, Chance, and MisplacedMoose for photos.Thanks to ThePixelatedCat for doing the blaster mechanical animation via commission.Thanks to Medli20 for the excellent Cynthia/Cynthia art! You should go check out their stuff :)China: 你好！ 我擁有這個設計。 想生產請聯繫我. 你好！ 我拥有这个设计。 如果你想生产，请联系我.Disclaimer: This is not a toy. This blaster is meant for hobbyists, not children. Blaster must be operated correctly to avoid injury. I am not responsible for any injuries from this blaster. Please use a bright/blaze orange muzzle and barrel cap on this blaster. Consult local laws before building this high powered blaster. Changelog: 3-31-2023: Blaster release.6-15-2024: Fixed the orientation of the boltbases being flipped around. The parts were just exported flipped the wrong way, so I've flipped them around the correct way so people can slice them easier. Donations & MerchIf you like what I do, please consider supporting me! I don't charge for my files, so any donations or merch purchases would be greatly appreciated!Patreon (Monthly donations)Buy Me A Coffee (One-time donations)AWESOME shirts made in collab with Brandon DiazRedBubble My merch shop, full of fun Nerf-y stickers and shirts!