Excaliber Whoop Build Guide (Whoop-Caliber)

April 27, 2019

Space City Drones is proud to announce the 2019 release of the Excaliber Whoop! This frame has been named "Whoop-caliber" by our fans, so be on the lookout for that name as well! The black base frame is 3D printed in Nylon to give an adequate amount of flex while retaining rigidity for flight. The pod and the battery holder are printed in TPU plastic, allowing it to flex in crashes to increase durability and absorb impact.

The frame is compatible with the following components:

  •         40mm diameter propellers
  •         35mm mounting base all in one flight controller
  •         8.5mm bolt diameter motors for M1.4 screws
  •         ZO2 AIO camera
  •         2S batteries (12.8mm X 16.5mm rectangular)



Locate the four nylon screws (M2.5x10mm) and the four rubber grommets included in the hardware packet and insert the screws from the bottom of the frame:


Step 2:

Flip the frame right side up, and press the rubber grommets onto the nylon screws:


Step 3:

Mount the motors as shown. The front and back motors will need an extension (provided in the kit) if they are not long enough:


Step 4:

Place the flight controller onto the top of the frame by threading the receiver module through the center of the frame. You can flex the frame to make it easier to seat the flight controller on the grommets. Make sure to press the flight controller all the way down onto the frame:


Step 5:

Flip the frame upside down, and add the motor wire extenders to the front and back motors:


Step 6:

Plug the motor cables in as shown in the picture below. The red arrow indicates the front of the whoop:


Step 7:

Press the four nylon nuts provided into the pod. You can bend the pod to help access the back tab in order to press the back nut in:


Step 8:

Slide the camera into the TPU camera mount provided in the kit from the top, making sure it is fully seated:



Step 9:

Slide the TPU camera mount up through the bottom of the Excaliber Whoop Pod and screw the camera mount in with the screws provided:


Step 10:

Press the receiver antennas through the holes located in the back of the pod. Route the receiver wires around the flight controller on the bottom of the frame. Poke the VTX antenna out the back of the pod:


Step 11:

Plug the VTX into the flight controller. It helps to add a dab of hot glue under the VTX to prevent it from coming loose over time. If you glue the VTX, it also helps to extend the camera wires so the pod can be removed without detaching the VTX:


Step 12:

Place the pod on top of the frame, press the nylon screws into the four holes until they touch the nut from underneath, and begin tightening the screws until they are flush with the top of the nut:


Step 13:

Using the four remaining screws in the kit, screw them into the tpu battery holders as shown. The screws are meant to be tight, so press on a hard flat surface while screwing into the battery strap:

Step 14:

Fasten the two battery straps onto the frame. The frame has small 1.2mm holes that are located in the following positions:


Step 15:

Tuck the receiver module underneath the TPU battery strap holders and secure with double sided tape:


If your flight controller is not set up as a plus frame, the setup is quite easy. Simply change the configuration to plus frame, and make sure all the motors are spinning in the proper direction. You may need to swap direction in BL-Heli unless you keep the props on from a previous build and make sure to mount the motors in the following orientation:


Once the motors are all spinning in the right direction, you are all set!

Happy flying!


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