Dual MGN9C bracket for modular 2020 D-Bot X-carriage

This is a remix of printingsome's modular 2020 D-Bot X-Carriage for the D-Bot, https://www.thingiverse.com/thing:3350550.
I have cheap China MGN9 rail with two MGN9C blocks instead of single MGN9H block.
Took measurements from printingsome's part and made adjustments to accomodate holes for dual blocks.
Your blocks need to fit with 20mm C-C between the holes closest to each other for this part to fit.
M3 holes designed with 3.2mm holes and 7mm, 3mm deep, holes for hex heads.