36mm x 10mm hub compatible with 3mm coupling flange, Xuanzhi motor, designed for ingenious youth

I Design Rationale

In the intense competition of the Xuanzhi Robot Fighting Tournament, the hub, as a crucial component, directly impacts the robot's performance through its durability and stability. Traditional 3D printed hubs experience friction with the output shaft of the reduction gear motor, readily causing wear under high-intensity combat, severely affecting the robot's mobility. To address this challenging issue, I meticulously designed this 36mm diameter, 10mm wide hub, aiming to equip competing robots with more reliable locomotion "gear," enhancing their sustained combat effectiveness on the field.

II Model Features

1 Innovative Connection Design

This hub utilizes a flange coupling to secure the reduction gear motor, completely eliminating direct friction between the hub and the output shaft. During intense robotic combat, this effectively minimizes wear and tear, significantly extending the hub's lifespan, ensuring the robot maintains optimal operational status during prolonged, high-intensity competitions.

2 Precise Dimensional Compatibility

The 36mm diameter and 10mm width design, meticulously calculated and rigorously tested, perfectly complements the Xuanzhi Robot Fighting Tournament's arena requirements and robot chassis structure. It provides stable support and agile turning performance, facilitating the robot's nimble maneuvering and strategic positioning on the field.

III Printing Guide

1 Recommended Material

PETG is strongly recommended for printing, which I personally used. PETG boasts exceptional strength, effectively mitigating collisions and impacts in the high-intensity environment of the Xuanzhi Robot Fighting Tournament, significantly reducing the risk of hub fracture or deformation. Compared to other common materials, its superior resilience ensures the hub maintains structural integrity and functionality even under external force, guaranteeing stable robot performance throughout the competition. Furthermore, PETG exhibits excellent print flow, accurately replicating the hub's intricate design for high-precision formation.

2 Recommended Printing Parameters

• Layer Height: 0.2mm layer height ensures a smooth hub surface, minimizing stress concentration points caused by layer lines, thereby enhancing overall performance.
• Infill: 15-20% is optimal. This provides sufficient strength to withstand collisions during competition while reasonably controlling print time and material usage.

IV Instructions for Use

When installing this hub, first firmly connect the flange coupling to the hub, then attach the hub and coupling to the motor output shaft, ensuring a secure fit, finally installing the rubber band as the tire. Disassembly follows the reverse procedure. The entire process is simple and convenient, requiring no special tools, allowing for swift robot re-equipping for intense competition.

It is hoped that this hub, specifically designed for the Xuanzhi Robot Fighting Tournament, will inspire new design concepts and provide practical advantages for competitors and robotics enthusiasts, enabling them to shine on the competition field!

The flange coupling shown in the image

https://e.tb.cn/h.TFQTzhpLtsNlE5v?tk=kowwePUG6Qu
 

The tires used
https://mobile.yangkeduo.com/goods.html?ps=gA4EhWJ38U