Design & cad drawing and 3d printing file

This is for a Wheel type of design so that blochs can be inserted into it 1 round 10mm x 20mm or one rectangular 20mm x 15mm x 6mm depth, there is a simple design to stop any movement when putting multiple disks together, the diameter of the outer wheel will be approx 130mm, see drawing attached and let me know if you need anything answering, this needs a 3d file to order it to be 3d printed