Very interesting "Torque test". TMC2209 - 0.33kg - 0.21A MKS SERVO42B - 0.45kg - 0.61A MKS SERVO42C - 0.74kg - 2.35A with limit 1A (see 0:18 of this video) Were other tests done with the same "configuration"?
You are correct. "torque test" is useless. What was the idea i wonder. That magic driver will double the torque you can get out of the same motor? What i really hate about makerbase is that they take the code from open source projects, but they never publish their own.
I just purchase couples of SERVO42C motors. According to the schematic diagram on github, this desing use a synchronous step-down converter MD8942 which can provide up to 0.6A output. The output of MD8942 drive a 3.3V LDO voltage regulator along with the stepper driver. However, I did saw the default setting of motor current limit shows 1200mA. But the documentation released on github also state that the driver will ADJUST it's output current if the motor was operated in vFOC mod(which is also default setting). So I think the operating current of SERVO42B and SERVO42C are identical (almost)!
What function does the led have on the servo42c? also is there a analog out pin on U1 where I can get a signal for when a encoder missmatch has occured? like the led on the servo42B.
Interesting. It would be useful if you could do this test again with some acceleration. I assume the 42B/C are implementing some sort of acceleration to catch up. The TMC2209 does not in this example, but it would in the real world.
I am new to cnc. Can the 42C be wired for direct control via USB ? or do you need a control board ? I'll need 4, 2x 1y 1z so I'd need a control board with removable driver chips and USB to my computer. Prices seem to be all over the place. I wish I could find a forum to ask questions. :(
Faz um video usando o controlador MKS para ser usado em um forno de 1500°C pois muitas pessoas querem usar esse controlador para controlar temperatura de fornos para fundição
брал 4штуки MKS-SERVO42C, периодически во время работы слетает калибровка случайной оси , и двигатель с бешенной скоростью уносится в лимит, и бьётся об него пропуская шаги. После калибровки всё норм, но слетает другая ось во время печати. Думал проблемы по питанию, вешал для тестов отдельный БП, и даже аккумы для подпитки и дампинга. Всё равно не помогает.
