This is an update to my previous design - http://www.semaker.com/productdetail/4092
per a request I received.
Was asked to split the S Chakram into 2 halves and enable magnets to be added to hold the 2 halves together.
There are 4 pieces to print. Glue the 2 halves together and there should be 4 pockets to glue in rare earth magnets - 4 mm diameter x 2.5 mm height on each side. Glue magnets into these pockets and after the glue cures, attach the 2 halves together.
I modeled the magnet pockets to accommodate these magnets - http://www.harborfreight.com/10-piece-rare-earth-magnets-67488.html
I have not printed this, nor do I immediately plan to, so please share your results.
If you want to see any updates or fixes that are needed, please let me know.
After the holidays I should have time to split these 2 halves into further halves so they can fit on a 150 mm x 150 mm print bed.