Topspin (outer 13.4mm)-Damage-free convenient installation-No adjustment required-NN-path low dispersion

This is a truly stunning topspin!The actual performance exceeded my expectations (verified by fellow enthusiasts—no illusions here)!

A 7-year-old girl achieved 15+ meters, even with strong winds on a rooftop, hitting the target with remarkable accuracy! Wouldn't you want one? And it only takes 9 minutes and 54 seconds, using just 3.03g of filament!Print it and see for yourself!

If the results match my description, please give the creator a thumbs-up and a positive review. Your support would be greatly appreciated!

Preface:

I have printed and purchased many popular topspin designs from the market, most suffering from difficult installation processes, often requiring glue, tape, or sealing tape for securing, or rigid fixing (as above, damaging the inner tube when installing metal topspins).

Therefore, this quickly installable and non-destructive topspin was created. Of course! It's not perfect, currently only suitable for low-to-medium intensity launches, high-intensity launches risk detachment of the clip, this is due to reduced friction from high-frequency vibration. Due to design constraints aiming for <13.5mm, a solution may not be possible at this time. If you find it useful and don't plan to remove it soon, consider applying a small amount of glue to secure the gap between the sleeve and base. Do not directly adhere to the inner tube!!! Do not directly adhere to the inner tube!!! Do not directly adhere to the inner tube!!!

Recommended Filament: PLA, ABS, ASA. (Currently I have only printed with PLA, but based on experience, I recommend using a material with higher rigidity.)

Recommended Color: Black (for improved texture and aesthetics)

Printing Recommendations: Ensure the build plate is clean, wiping it down with isopropyl alcohol. (Avoid direct skin contact with the heated bed in the printing area, as hand oils may prevent proper adhesion to the build plate.)

Installation Steps:

The inner tube should extend to provide sufficient space for installation, requiring an inner tube extension length >13.5mm.

Components: Friction pad, base, sleeve

1. Install the sleeve onto the inner tube. (Figure 3)

2. Combine the friction pad and base, fitting them onto the front end of the inner tube and inserting them to the maximum depth; there is depth positioning inside. (Figure 4)

3. Adjust the topspin direction. (The topspin relies on the friction pad to rotate the projectile, with the Magnus effect counteracting gravity during flight, thus the rotation direction of the projectile is crucial. Adjust the orientation of the friction pad based on your grip; it should be perpendicular to the earth and installed upwards. During testing, you should also test the performance across different trajectories based on your grip!)

4. Secure the sleeve onto the friction pad and base (as shown in Figure 5, press firmly until it's flush).

5. Ensure that the friction pad is correctly installed, with no inward bends, lifting, or tilting anomalies.

Note: If you encounter any issues during printing or testing, please leave a comment or send a private message, and I will provide a solution as soon as possible! Please refrain from giving low ratings; high ratings are the greatest encouragement for creators, conversely low ratings are extremely discouraging. Thank you for your understanding and support!

2025.04.12 Anomaly Fix Update: The print profile for models before the 12th was incorrect. Due to minor adjustments before release, I misjudged the effect of these modifications on printing. I sincerely apologize! The print profile has been updated on the 12th; those who printed before this date are requested to re-download and print. My sincerest apologies!