I don't use toolhead boards. This is how I relieve wire strain on the Calamity toolhead designed by lukeslabonline.com.
I printed in PP-GF30. 0.5mm Nozzle, 0.25mm layers. 5 walls, 6 top/bottom 40% gyroid. PP needs the extra walls.
The back mounting screws are a tight squeeze requiring careful use of ball end hex keys. I doubt this will be the last version, but until it breaks it's rocking out as is.
Should accommodate ~½" to 5/8" umbilicals.
BOM:
The author marked this model as their own original creation.