This carriage plate has the same dimensions as the standard carriage. I designed it to replace my part, after I found the bearing carriers had split after less than 2 weeks of use. There are other designs floating about, but I found them to be fairly inaccurate. All the existing standard equipment will transfer directly over to this part.
The two y axis carriers are designed with more rugged belt anchors. The 4mm holes in the tops of the parts are designed to have 4mm x .07mm pitch heli-coils installed. Giving a much better service life over self tapping screws.
I added some sticky back heat reflecting foil to the underneath of the extruder carrier, for some reassurance against any warping. Works flawlessly.