TPU prints for my custom DLQ Outlander 2.5 quadcopter. Its a 2.5 inch quadcopter based on the same geometry as the impulse alien, only smaller.

Here are the parts in my build:

Frame: https://armattanproductions.com/pages/kit_detail/2140

Frame takes m2 hardware with 22mm standoffs (see link below)

Flight Controller: https://www.banggood.com/20x20mm-Betaflight-F4-Noxe-MPU6000-Flight-Controller-AIO-OSD-5V-BEC-Built-in-LC-Filter-for-RC-Drone-p-1310419.html?p=X709229380619201703O&custlinkid=572767

ESC: https://www.banggood.com/HAKRC-20x20mm-20A-BLheli_S-BB2-2-4S-4-in-1-Brushless-ESC-Support-DShot600-for-RC-Drone-FPV-Racing-p-1441392.html?p=X709229380619201703O&custlinkid=572768

Motors: https://www.banggood.com/Eachine-Lizard95-FPV-Racer-Spare-Part-1104-6000KV-1-3S-Brushless-Motor-for-RC-Drone-FPV-Racing-p-1150341.html?p=X709229380619201703O&custlinkid=572766

FPV Camera: https://www.banggood.com/Foxeer-Arrow-Micro-Pro-13-CCD-1_8mm-M8-Lens-43-600TVL-PALNTSC-FPV-Camera-with-OSD-BlackBlueRed-p-1319864.html?p=X709229380619201703O&custlinkid=572769

Receiver: https://www.banggood.com/Frsky-XM-Micro-D16-SBUS-Full-Range-Mini-Receiver-Up-to-16CH-for-RC-FPV-Racing-Drone-p-1110020.html?p=X709229380619201703O&custlinkid=572773

VTX: https://amzn.to/2ZN6JQW

Props: https://amzn.to/2ZPr9bY

Video: