I use a generic door closer as a counterweight for my Switchwire build, which is much cheaper (and simpler to supply in Germany) than the recommended Keybak and it's function is identical. When I used Kruze17's bracket (https://www.thingiverse.com/thing:5206581), I noticed that the string was dragging on the edge of the exit hole, so I turned the door closer to an angle. Also, I don't like that the holder from Kruze17 doesn't have the Voron typical chamfer and fillets, so I redesigned the holder looking closer to the Voron style.
This is one of my first designs with OnShape. Anyone can create a free OnShape account (https://www.onshape.com/en/products/free) and make a copy, the link of this model is:
https://cad.onshape.com/documents/0cb1ffca75c3bc0f7ebc08dd/w/3be148a3b5c2f8648819c93b/e/1506fbc89204ff3218d15b53?renderMode=0&uiState=620931d969037964b71c8791
This is the generic door closer I used:
https://www.amazon.de/gp/product/B08GM465ZD
The author marked this model as their own original creation.