I designed this Bracket to hold the PCIe-cards on my wall mounted PC. This bracket only works if you mount the motherboard flush with the edge of your wooden board. The wooden board has to be atleast 20mm thick, if the mobo is screwed into 7mm standoffs. the holes for the PCIe-screws have a 4mm diameter, so you can use heat set inserts and M3 screws to hold the PCIe cards in place. The Part should be printed in PETG or ABS, becaus PLA will bend over time, if you are using heavy PCIe cards like graphics cards.