DnD DM board dice roller

DnD dice roller that slides over DM board. File dm_dice_roller is recommended to use supports Files bd1 and bd2 are two half of the whole to allow printing with no supports but will need to be glued together. The spacing for the back mount is set to 3mm default. NOTE: I have not printed this for accuracy.
Please feel free to leave any comments about fixes or likes. Thank you.