Improved Snapmaker U1 front and rear trays

I initially printed a front and rear tray from other users on here and whilst very good, I felt a few features could do with improvement, so these are all inspired by the great work of many others but rebuilt from the ground up.

My designs are designed to address the following issues on the front tray,

• Moves the most frequently used items, scraper and snips, to the front.

• Moves the allen keys to the rear such that they are no longer dislodged whenever you remove the wire brush.

• Moved the nozzle cleaner to beneath the wire brush as its more rarely used and generally in conjunction with the wire brush.

• Added a tool used for easy disconnection of the PTFE filament tubes.

On the rear tray, this is more than large enough to store all the spare bits and bobs, nozzle, grease etc that came with the printer, keep them all in here and you'll never loose them.

• Added a lid to keep things tidy as the poop tray occasionally fails to collect all the pieces.

• Increased its height, its kinda dead space back there so by keeping it clear of the bed the height can be increased allowing for much more storage space. I've also included an extra tall version in case its still not tall enough for you.

These will require supports for the edges of the trays and the finger recesses on the rear lid, but with a machine such as the U1 that shouls not be an issue, I printed using PLA on Snapmaker Orca default slicer settings and used PETG for the supports with top Z distance reduced to 0.0mm