Wanhao DI3 Y Tensioner Idler

I liked Scraty's Y tensioner but didn't need the brace portion, as I already have Azza's braces. I remixed the tensioner to remove the braces and fit with the Azza braces. Also, the front plate is no longer needed. Obtain the sliding block and knob from the original Scraty version.

Installation instructions are similar to the original, but you only need 6 M3 screws to attach the brace, and you can use shorter screws. You still need the same M5 screws for the pulley and tension knob. I mounted