Have just finished my Sherline 5410 with HobbyCNC driver and motors and was getting a bit worried when i turned the thing on. I too get this sizzling air-leak noise, but it runs just fine.
With 3 200 oz-in motors, a 300 VA toroidal transformer and 30.000 uF caps it still makes this noise. I wonder how much more power it needs to stop ? |