Ninebot Segway ZT3 Pro e-Scooter Luggage/Bag Mount

This luggage adapter fits your rear mounts on the Segway Ninebot ZT3 Pro and allows you to mount a some handle-bar mounted bags to the rear. The design is intentionally very minimal & flat to improve strength along with a flat plate to prevent flex & tipping. Even with PLA this is a very strong mount, though for hot climates other materials (PETG/ABS/PC) will likely be a better choice. This can be printed on the A1 mini and bigger. 

Features

• Built for strength.
• The primary mounting part D is detachable from the base components (parts A, B, C) so if you need to craft a custom attachment for specific luggage, it's easy to swap out.
• Includes zip-tie cutouts in part D (see photo).

Additional materials needed:

• 6x M5 screws, button-head.
  • 3x M5x25mm
  • 3x M5x12mm
• 6x M5 washers.
• 8x M5x6x7 threaded inserts 
  Note: can technically be omitted, but not recommended as your securing strength will rely purely on the plastic.

Instructions

See build plate image for reference.

1. Pop the covers off the two rear mounting areas exposing to forward 2x screw attachment and behind single screw attachment.

2. Install (melt) the threaded inserts into the parts A, C, & D.

   

   1. 5x into the holes in part A.
   2. 1x into the hole in part C.
   3. 2x into the top-most holes in part D (these two are used to secure luggage clips). 
      
      It's strongly recommended, shortly after placing the inserts, to test screw through parts A & C on the rear attachment areas on the scooter itself to ensure alignment. Ideally this is done when the plastic is still warm and not fully set- DO NOT TIGHTEN, just make sure they are aligned (straight up, centered, not askew).
3. Place part B under part C so the hole aligns and drop it into the scooter's rear attachment area (making sure the holes align).
   Do not screw in yet.
4. Place part B on the scooter's front attachment area and attach with 2x M5x25mm screws with 2x washers (leave the raised 3 mounts on part B unattached at this time).
5. Attach part D (the biggest) over the other parts. It should cleanly align with the raised posts.
6. Screw the 3x M5x12mm screws (with 1x washer each) into the holes in part D that now align with part A.
7. Screw the final M5x25mm screw and washer into the hole in part D that aligns with part C (& B).
8. The mount should now be securely attached to your scooter!

Here's the materials I used from Amazon:

• 240 Pcs M5 Screws Assortment Kit, M5x6mm/8mm/10mm/12mm/16mm/20mm/25mm/30mm, Metric Hex Button Head Socket Cap Screws Nuts Washers Kit with Wrench, Black Zinc Plated
  https://www.amazon.com/dp/B0DRYD9LWQ
• M5 Threaded Inserts for Plastic Heat Set Insert Brass Insert Assortment Kit for 3D Printing Injection Molding Press Thread Nuts (M5x6x7, M5x8x7(70Pcs))
  https://www.amazon.com/dp/B0FH4VJRVK
• Rhinowalk Scooter Bag Handlebar Bag Waterproof Front Storage Bag Bike Frame Bag for Electric Scooter
  https://www.amazon.com/dp/B0CHMJFWYD