Summary

This bin bag holder is designed to be used on a bench of around 27mm in thickness or smaller.
Designed to be used with a cutting board in front so you can just scrap the waste directly into the bin.
The tray clips on and may help hold the bag open so when scrapping food waste it will go straight in.
I played around with different ways to hold the bag, so far it's not quite perfect. The one shown in the picture is the original design and I have updated it in the CAD so the new prints will be better.
For printing, just have more than 10 percent infill and I always use 3 perimeters with a .6mm nozzle.
If you don't have a .6mm nozzle increase perimiters and order some .6mm nozzles ASAP.
The only part that needs supports is the Main.stl and it's not much, just don't cut your self when removing them.
All items should be oriented the correct way and has been designed to minimize plastic use over time to print.
Update;
The "Bin Support v.2 L" and "Bin Support R" has been added to hopefully make attaching the bag easier. I haven't been able to print it as my printer is dead and I have been waiting for 5 months now for a part. You don't need the supportx2.stl file anymore.