I just picked up a Novakon 135(same as early syil x3/x4/sieg kx3 etc) that was sold as used/broken. It has no stepper drivers or breakout board but did include a 3500 rpm(was hoping it was a 6k model) brushless motor and controller. The controller looks ok but there is a 50v 470uf cap that's bulged and discharging some crud so it's blown. Not sure if it still worked but I plan to try and replace the cap first, though I'm not counting on it working.


I do not have a wiring schematic and haven't really looked at how it was wired since I don't have the PC half that had breakout board and stepper drivers/power supply I can't know the voltages on the stock controller beyond looking at the caps. Since it has 1000uf 250v caps on the back I'm guessing it's a 220 ac input? No clue about the rpm single or what else needs voltage and how much. Looks like some is obviously 50v so I'm guessing it had a 48v power supply.

I found this controller that looks like it may work:

https://m.aliexpress.com/item/4000822156342.html


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