The Comandante C40 remains the gold standard for hand grinders, but a new aftermarket accessory expands its utility by adding electric power. The Nexra NM1 is currently live on Kickstarter and aims to convert the manual device into an automated tool. This attachment replaces the traditional lid and crank handle with a motorized unit that fits directly onto the grinder body. It is designed for users who want consistent grinding without the physical effort of turning a handle every morning.
Mimicking Hand Grinding Pace
The Nexra operates at a slow 60rpm speed, which the manufacturer describes as "hand-grinding pace." After inserting a specific hopper insert, users top-load coffee beans just like they would with the standard C40 setup. When activated, the device rotates the burrs at this controlled speed to maintain grind quality. An auto-reverse feature spins the burrs backwards momentarily if a jam is detected, protecting the components from potential damage. The unit is USB-C rechargeable and allows users to revert to manual grinding whenever they choose. It comes in matte black or metallic silver finishes, and buyers can add a stand and magnetic dosing cup for $65 to complete the household setup.
| Feature | Specification |
|---|---|
| Rotation Speed | 60rpm |
| Power Source | USB-C Rechargeable |
| Jam Protection | Auto-reverse function |
| Base Price | $159 (Kickstarter) |
| MSRP | $199 |
Funding Status And Availability
The Kickstarter campaign has only two days remaining and has already earned over 20 times its initial $1,275 goal. Early backers can secure the Nexra NM1 for $159, which is $40 off the standard retail price of $199. The project team reports that rewards are ready to start shipping out as early as next month. While the electric option offers convenience, it adds complexity to a grinder that many prefer for its simplicity. The added cost for the stand and dosing cup brings the total package price close to $224 for full functionality. For those committed to the C40 platform, this attachment provides a clear path to automation without replacing the core hardware.
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