MPCNC T-Slot Workpiece Clamp

Hi I hope this helps people out there with a MPCN project. Print as many rails as you want and place them end to end. Each are 100mm long. The system makes use of a type of Flat square head M8 bolt i had laying around in abundance see the pics of the bolt. But i have included the f3d file to modify it to take a Couch bolt. Heres the kind of m8 bolts i used, many used in sign industry. http://www.tradesignz.com/square-head-m8-x-ss-bolts-nuts-washers.html