diff --git a/Swap-stepper-motor-driver-for-TMC2xxx.md b/Swap-stepper-motor-driver-for-TMC2xxx.md
index 776eebf..a01ac44 100644
--- a/Swap-stepper-motor-driver-for-TMC2xxx.md
+++ b/Swap-stepper-motor-driver-for-TMC2xxx.md
@@ -39,6 +39,10 @@ A very good summary and instructions on how to calculate and measure the referen
 
 Not only the drivers are highly recommended, but also the support.
 
+In addition, user [OHacks has extensively documented here](https://github.com/knutwurst/Marlin-2-0-x-Anycubic-i3-MEGA-S/issues/331) which values Anycubic uses and how to use them transferred to motor drivers from Trinamic (e.g. TMC2208).
+
+See: https://github.com/knutwurst/Marlin-2-0-x-Anycubic-i3-MEGA-S/issues/331
+
 
 **6. Install firmware**