I want to discuss the Freefly Arc200.
I’m surprised more people aren’t using these. The price is $299.00 retail so they are definitely competitive. They have higher a amp tolerance than any other ESC available today.
While they won’t achieve speeds as high as some VESC derivatives that are in pre-production, they WILL hit 40mph while staying within safe current and voltage limits. That is at a minimum competitive with the best VESC’s in the market, likely better.
They seem like the perfect speed controller for eMTBs.
I haven’t ask the Freefly guys, but I bet we could get a good price on a group but. If you’re interested, sound off, and I’ll give them a call.
For those that haven’t used them, here is some basic info
- It’s more reliable than any other ESC on the market because the limits are so high and the construction is so elegant, I’ve yet to hear iof anyone killing the retail version in an esk8. A couple of the betas had issues, but that was in 2018 before the retail release.
- The aluminum precision milled and powder coated housing is top quality, it’s also a heatt sink.
- It’s more configurable than any VESC or R/C ESC. That’s also it’s one major flaw, configuration is in depth.
- They are available for shipping on checkout.
- The body is water resistant and splash proof, the connectors are water proof.
- It’s an enclosed system. As long as you have it secured I doubt vibrations could harm it.
Input Voltage: 4S (13.6v) - 12S (50.4v)*
Max peak phase current: 200A
- Continuous current with little to no heatsinking (hot-side facing upwards and unobstructed): 60A
- Continuous current when bolted to a typical EV aluminum chassis: 100-150A
- Continuous current with infinite aluminum heatsink or water cooling, and forced air cooling on phase wires: 200A
Control Inputs: PWM, Analog (1x combined throttle/brake or independent throttle and brake), UART/CAN (for advanced users to interface through the Freefly API’s QX protocol)
Phase-Output: 8mm Female Bullet
High flex, high strand count wiring
Capable of 50v input voltage and 200A
Enclosed in a machined aluminum case with excellent thermal transfer
Supports a variety of inputs including CAN, Analog, PWM, UART
Multiple mounting points for easy installation
Weighs just 265 grams
Sensor support: Fully sensorless, digital hall sensors, PWM
Operating modes: Torque mode (EV), speed mode (Multirotor, requires advanced user tuning), angle/servo mode (experimental, requires advanced user tuning and high-resolution motor encoder)
23.4kHz switching frequency for zero audible PWM noise
Integrated 5A 5V BEC (Recommended continuous-current draw to be kept less than 3A)
Water resistant and splash proof - integrate into your application to avoid continuous water exposure
Freefly Arc200: https://freeflyrobotics.com/products/arc200
Arc200 Wiki: https://freeflysystems.atlassian.net/wiki/spaces/FRP/pages/269287436/Arc200
Arc200 Forum > esk8 build: https://forum.freeflysystems.com/index.php?threads/arc200-skateboard-build.12763/