Inquiry on Amiga specifications

support
1

I have a few questions regarding the specifications of the Amiga robot. Based on the information I was able to gather online, I would like to confirm a few details:

  1. It appears that the hub motors are brushless DC geared motors with a rated voltage of 36V and a power output of 250 W. However, some sources mention that the motors are rated at 500 W. Could you please clarify the correct rated power?

  2. What is the gear reduction ratio of the motors? Additionally, is there any available T-N (torque-speed) curve data for the motors?

  3. According to the information I found, the battery is a Li-ion type with a nominal voltage of 44 V, a capacity of 15 Ah, and a maximum discharge current of 30 A. However, when measuring current via CANBUS, I observed currents up to 50 A. Is it correct to understand that the battery can operate at around a 2C discharge rate?

  4. Would it be possible to obtain a 3D CAD model of the Amiga robot?

I apologize for the many questions, and I sincerely appreciate your assistance in advance. Wishing you a great day!

2

Hey Sean,

The motors are indeed 250W, but have a multi-step gear reduction that adds up to 30:1.

The batteries are modified version of the same case you can find online, usually. The nominal voltage is indeed 44V, and we limit voltage to 40 to 50V via our firmware. Each battery have a 30A slow-blow fuse, so, the motors can potentially use up to 60A (and maybe even higher, if transient. So, yes… you can say you ca a 2C discharge rate.

We have a public folder with multiple parts of the Amiga that you can use to build your robot. There are some parts we are still working to get there, but shoot me an email at support@farm-ng.com if you need parts that are not there (for e.g.: I am still working on the 3 Point model).

thanks for your detailed questions and can’t wait to see what you guys will build.

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