Print Profile(1)
Description
This 3D-printable traction aid is a newly designed spike/grip ring design I created for ECOVACS GOAT robotic lawnmower wheels. The ring is mounted on the outside of the drive wheel and improves grip on wet lawns, slight inclines, or loose ground
The design is functionally based on known stainless steel traction rings but is optimized for FDM 3D printing: flat design, large contact surface, 20 grippy outer claws, and countersunk screw holes (3 x 30 mm countersunk screws) for clean assembly
Ideal for anyone looking for a lightweight, quickly printable, and cost-effective alternative to stainless steel spikes
Dimensions of the 3D Model
| Feature | Dimension |
|---|---|
| Nominal outer diameter | approx. 235 mm |
| Inner diameter | 175.0 mm |
| Overall thickness / height | 6.0 mm |
| Outer claws | 20 pieces |
| Through holes | 5 pieces |
| Bottom bore diameter | Ø 3.3 mm |
| Countersink top | Ø 8.3 mm |
| Countersink depth | approx. 2.5 mm |
| Hole circle | Ø 187.0 mm |
| Angular spacing of holes | 72° |
| Radial claw protrusion | approx. 14 mm |
Print Recommendation
Recommended material: PETG, ASA, PA, or PA-CF
Not recommended: PLA for permanent outdoor use, as heat, UV, and moisture can reduce durability
Profile from the 3MF file:
| Setting | Value |
|---|---|
| Layer height | 0.20 mm |
| Material profile | PETG Basic |
| Walls | 4 |
| Infill | 15 % Gyroid |
| Supports | no supports |
| Brim | Auto-brim |
| Orientation | Flat on the print bed |
For high stability, more walls or higher infill can be used, for example, 30–50% or 100% if the ring is subjected to heavy loads
Assembly Note
Typically, 2 rings are needed per robotic lawnmower, meaning one ring per drive wheel
The model has 5 countersunk holes per ring. Matching M3 countersunk screws 3 x 30 mm or similar screws with a flat countersunk head are recommended. Do not choose screws that are too long, to avoid damaging the wheel or internal components
Note / Disclaimer
This is not an official ECOVACS or ROBO-CLAWS product. Brand names are used only to describe compatibility. Before use, please check for clearance, screw length, and secure fit. Use at your own risk
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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