Thumper - Harmonica Clip Shotgun Blaster (Nerf Homemade)

The Thumper is a shotgun Nerf blaster using a harmonica clip, top slide and T pull prime, and swappable ammo modules!
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updated August 24, 2024

Description

PDF

Blaster overview

 

 

 

The Thumper is a shotgun Nerf blaster using a harmonica clip, top slide and T pull prime, and swappable ammo modules! 

 

 

Sellers

Hardware is available from these sellers:

Fully printed/assembled blasters are available from these sellers:

 

 

 

Reviews:

BoomstickMods: https://youtu.be/rKymBY7zs3w?si=g-HURBIiaKr-lFR7 

GimsMods: https://www.youtube.com/watch?v=cxgaBw0HAck 

FamilyFoamsport (Old prototype V1): https://www.youtube.com/watch?v=HE-zkEBi10c

 

 

 

 

 

 

Print Info

The clip modules should be printed at 2 walls, 10% gyroid infill to be both strong (enough), and light (ish).

The sear, ram, puller, sealer, spring cup, and T pull should all be printed at 5 walls, 100% infill.

The rest of the blaster can be printed at 3 or 4 walls, 20% infill. GYROID INFILL IS BEST.

Print 4x of the "Bracket" part.

 

 

Hardware

Full HW list/BOM: https://docs.google.com/spreadsheets/d/1czb6vyq1ABUQXkraX95rTjFpWHEiODONb04fz7ID08o/

The nylon spacer (sear pivot) can be printed if need be: https://www.printables.com/model/874057-printable-nylon-spacer-replacement-for-2021-captai 

 

Assembly

Assembly guide: 

If your cam arm extremely wobbly on the side, print the tighter version. A bit of wobble is normal.

 

 

 

 

 

 

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).

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.

Thanks to Taffy (Charamile Designs) for making the Skewer, which this blaster was loosely developed off of :)

Thanks to OutOfDarts, Junior7, and BoomstickMods for photos.

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.

 

 

Donations

If 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!

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Model origin

The author marked this model as their own original creation.

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