I agree that there are too many bolts here... they have WAY more power than needed to hold those. I also like what some people have suggested- like Brady's suggestion for clamping them into a Vee. I like that one because it makes sure there are no protrusions into the "safe Z" volume. And what I think of when I look at this is: I would want a quantity that is a sufficient number so that you get a good long machining cycle out of your set up. And secondly, I like Brady's individual-puck hold downs, all-in-a-row idea because you can go in and set up for maybe two or three or four machining zones/areas. When the one area is done and the spindle moves to the next area, you can go in and remove and replace the parts that have already been machined with new stock. And when your machine gets to the end of all the zones or the cycle, you can have it programmed to automatically go back to the beginning and do the next sets(s). If someone is "tending" the machine, they can simply install and remove pucks in a succession without ever having the spindle turn off, go home and then have to turn on and go back to the first machining zone to begin all over again. Over thousands of parts- it will wind up being a significant time and wear and tear savings. Significant labor savings....

Don't get me wrong: I LIKE your set up. But you are using a lot of bolts, that are of a large size. And if you are going to be looking at making this process faster and more cost effective- I would be looking for ways to accomplish the task without having to un-bolt that many bolts, and then rebolt them. And make sure all the T-Nuts are still in place and make sure sawdust or rubber chips aren't keeping the assembly from going together properly, etc.... And make sure the MDF has not gotten soft from being pulled by all those bolts and then loosened, and tightened and loosened.... Brady's set up would save lots of time in the repetition of the processes required....

Best of Luck with it.

Monty Ma Gill