TapeMeasure's Universal Mounting Plate Specs (Measure the pockets to make sure nuts & bolts will fit) Nut & Bolt- 1/4” - 20 Mounting point spacing 20 mm x27 Mounting points Plate’s mounting point x6 160mm (aligned for Spot’s T-slots) Overall Dimensions 180mm x 100 x 10mm Models are available under attachments to the left to with the link below  Mounting Plate on Printables Additional accessories Print settings When slicing the model make sure to have a layer pause before the pockets are sealed to place 1/4-20 bolts. Spot Universal Mounting Plate.3mf should have a layer pause set when using PrusaSlicer and the file is "opened as project".   Photos of accessories