So far things are turning out awesome for this project. Everything is working and I keep getting new ideas on accessories and attachments. Making some example uses and they are all working nice so far. I'll post them a bit later, but hammering away to get ready for the San Mateo Maker Faire in May. All my prototypes cores are 3D printed in PETG to test them for real. I have ordered my custom profile made from real aluminum extrusion that hopefully will be read next week to try out the real thing.