I've just bought a Two trees sapphire-s printer and swapped out the A4988 drivers for TMC2100 boards. The control board is a Chinese lerdge x.
The printer works perfectly and silently while homing or jogging the axes, but as soon as its printing the noise is exactly the same as A4988's no matter what
speed its moving at.

Its a weird issue and I cant get my head around it, has anyone seen something like this before?