nerf -H煌鸲Q-One-Piece Bearing Tube (with step)

As you can see, this is a one-piece 3D printed bearing tube of somewhat mysterious origin. Through various means, a friend of mine in Andorra managed to recreate this bearing tube to a certain extent. However, due to my friend's lack of expertise, some data was not measured, resulting in only about 60% accuracy. Its reliability remains to be tested. Overall, it's usable, and the cost can be kept under thirty yuan.

I will gradually refine the arrangement files for other slicing software in the future.

File Description:

• This upload contains three files: a default STEP file with a 60° wrap angle, a 45° wrap angle STEP file as a backup, and a sliced file (print profile).
• The sliced file is for the 60° version of the bearing tube.
• Please use this bearing tube on a launcher with an initial velocity greater than 50 m/s. Typical 1g egg drop rate is around 6, bamboo drop rate is around 4.
• Due to potential inaccuracies in the data, and the potential difficulties in modifying the wrap angle in STEP format, a 45° wrap angle file is provided as a backup. If severe drop rate issues occur, you can refer to the arrangement method in the sliced file to create your own 45° version.
• Due to the unique nature of this data, commercial use is strictly prohibited. If you require commercial use or derivative works, please include my MakerWorld link; thank you!

Production Notes:

1. Printing: If you are a 3D printing beginner, please strictly follow the slicing data included with the file. Default slicing may result in significant overhangs that could affect the installation of the finished product. These overhangs have been confirmed to affect the installation of the printed parts.

• Do not start printing on a mobile device; missing supports will cause printing failure!
• Do not start printing on a mobile device; missing supports will cause printing failure!!!

• Please confirm that the supports match the image below on a computer before starting printing.

  

2. Hardware: Not compatible with the screws of the CNC version. To enhance fastener performance, the Huangqu bearing tube uses longer hex screws than the CNC version, thus resulting in incompatibility. Please take note of this.

Hardware:

Screws: M3*10 Hex Socket Head Cap Screws * 9

Washers: M3 (center hole diameter) * 5 (outer diameter) * 0.3 (thickness) * 9

Please strictly adhere to the specified dimensions when purchasing washers; otherwise, the bearings may not function smoothly.

Bearings: MF83ZZ bearings * 9

Bearing Notes: Bearings of the same model but from different vendors may have slight variations in their flange dimensions. Please purchase MF83ZZ bearings with a flange outer diameter of 8.9-9.0 mm.

Installation Notes:

Other:

• The inner tube socket in the sliced file is slightly loose when installed on a Craftsman spec inner tube launcher and slightly tight on mainstream printed launchers. You can use PTFE tape or sanding to solve this problem (for the lazy).
• If you have more accurate information about the bearing wrap angle, please leave a comment. I will modify the drawings as soon as I see it. Please also feel free to raise other issues encountered during use in the comments section; thanks to Da Huo for the creation.

Author's Shout-Out & Acknowledgements

Yi: “Why can't you find the problem in yourself when you can't afford a CNC bearing tube? Look in my ass and answer me!!”

Andorra: “Daydreaming again, dreaming of a 165cm tall girl with twintails who loves playing Nerf, saying 'senpai', 'I've liked you for a long time, just copy mine (bearing tube) too.'”

I copied it, and the dream woke up. (A tough guy sheds tears)

Yi: “Do you think you're original?”

Andorra: “I think I am, because you can't find someone else who can copy it this sloppily~”

Yi: “I'm pissed off by this crappy copy.”

Yi: “Why didn't you make it multi-part?”

Andorra: “Because not being a helicopter pilot meant my vernier caliper was unfortunately defeated in the resurrection match against G2m… ”

Yi: “Speak human!”

Andorra: “Lazy, but the false bottom cover and groove depth are correct. Maybe someday I'll make it.”

Yi: “Here's fifty cents; remove the parentheses.”