Dust extraction system Stepcraft M500

I tried out many different concepts from the internet but none of them was suitable for my machine.

So I designed a system from scratch and am very happy with it, feel free to modify it ( .f3d and .step files are included). 
Please tell me what you changed to improve the design.
 

base_plate (printed in CF-PLA / I machined it out of POM)

The base_plate is mounted on the bottom Z frame of the machine using the:

• alignment_pin_left (bigger DM) (printed in TPU)
• alignment_pin_right (smaller DM) (printed in TPU)
• side_clamp. (printed in CF-PLA)
   

I designed two different Dust_shoes (printed in CF-PLA):

• 5.5mm_Dust_shoe for a brush like this: https://amzn.to/3CYv6lO
• 2.1mm_Dust_shoe for a 2mm PVC mat like this: https://amzn.to/3TGcFZ7
  both can be mounted to the bottom side of the base_plate using magnetic band like this: https://amzn.to/3BkaWl8
  
  Besides the magnetic band (Z direction) the Dust shoe - base_plate connection is also supported using anti sheering pins (X and Y direction).
  I threaded the baseplate (M4), screwed them in and also used shrinkage tube for this 4 bolts to gurantee soft contact to the Dust_shoe

The vacuum hose is mounted to the base_plate using the hose_adapter (printed in TPU) and can be supported somewhere on the machine with:

• Hose_Clamp_Base (printed in CF-PLA)
• Hose_Clamp_Top (printed in CF-PLA)

Material list:

• 2pcs M4x16 internal hex bolts for mounting the side_clamp
• 4pcs M4x16 internal hex bolts as anti sheering bolts
• 4pcs M6x16 internal hex bolts and
• 4pcs M6 nuts if you want to use the Hose_Clamp_Base and Hose_Clamp_Top
• The brush or PVC mat (links above)
• The magnetic band 20x2

Additional Info:
If you are using your machine with the T-slot table at the upper position everything is as usual.
If you are using the lower position or no T-slot table at all, your build area reduces to ~ Y460 X300