Festool Sanding Interface Plate

I recently got my hands on some Festool tools. One of which was a sander. However, it needed a new Sanding Interface aka the part that goes between the sander and the sand paper. I looked for Sanding Interface plate but it cost around $40-50. I found a cheaper one for around $20ish. There is a 5in and 6in version After looking at the prices, i was like its cheaper to make my own. I was able to design one but its no where near even the cheaper version one. The issues with my version are; 1 - Its 3d printed aka does not have lots of strength. Even at 100% infill, I don't think its a good idea to actually put it on a sander that SPINS VERY VERY FAST. I am not engineer but i image it will break and parts will go flying everywhere. 2 - Clearance is another issue which is important for suction. My design “looks right” but there is a HUGE difference between mine and even the cheaper version one i found. The cheaper one is very close to the machine, mine has a huge gap. This is a problem becau