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Top » Catalog » UAV, FPV, Multicopter, Autopilot » Can't Afford To Buy a Foldable Frame? Make One By Myself!
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Can't Afford To Buy a Foldable Frame? Make One By Myself!

I have seen most people in the forum have their own satisfied multicopter. I once built a H-type frame and flied just one time. However, it is not very convenient to carry that drone. I ever looked for some off-the-shelf foldable frames but they are all too expensive for me. Thus I finally decided to make one by myself.

I plan to use GF plate for my frame structure and utilize Tarot's foldable parts for 16mm tube. The frame shall look like a small stool when folding. Here comes the cut drawing for the frame. It took two days for me to prepare the drawing. The outcome seems good enough for me as I never use CAD tool before ;)


 
The drawing was sent to someone who can help me to cut those parts from a large GF plate. While waiting for the frame parts back, I bought the foldable parts from Tarot (part number is TL68B28).




 

 foldable mount for 16MM carbon fiber boom/ black [TL68B27]  foldable mount for 16MM carbon fiber boom/ black [TL68B27]  US$6.32 Buy Now 
 foldable mount for 16MM carbon fiber boom/ red [TL68B28]  foldable mount for 16MM carbon fiber boom/ red [TL68B28]  US$6.32 Buy Now

Assembled the motors and arms first. I used the 16mm CF tubes from my H-type frame originally. The motor mounts were also from the old H-type frame. The 16mm tubes look a bit short because I cut it down due to crack happened on one of its end.





The 4108 motor is a mix of rotor and base from different vendor. The KV is 690 so I can use only 4S. Probably I will redo the motor winding for running under 6S someday. The four ESCs are brand new HobbyWing 40A which eat up a bit of my budget.


 
Hobbywing Multi-Rotor ESC XRotor-40A Asia-pacific Version [USXR40A_V1_AE]  Hobbywing Multi-Rotor ESC XRotor-40A Asia-pacific Version [USXR40A_V1_AE] Shipped from USA Warehouse US$24.56  US$17.94 Buy Now 
 Hobbywing Multi-Rotor ESC XRotor-40A Asia-pacific Version [XR40A_V1_AE]  Hobbywing Multi-Rotor ESC XRotor-40A Asia-pacific Version [XR40A_V1_AE]  US$24.56  US$17.94 Buy Now 

The frame parts finally arrived after three days. I chose 1.5mm glass fiber plate this time as CF plate will cost double.



Central frame. This is where the foldable part mounted.



Upper plate



Lower plate



The cover plate (and protector) for flight controller
 
There is also a battery mount plate which is a bit larger than the the cover plate for flight controller. Just I didn't take a picture for it.
 
Started assembly...



I just realized those slot cuts are a bit too small when trying to assemble the base of four foldable arms. Probably it is due to manufacturing tolerance. It took me significant effort to enlarge (to file and sand) the slot in order to fit. I used plastic bolts (spacer) to secure those parts near the four corners. Hopefully it will be secured enough for the four arm bases. Probably I shall change the spacers to aluminum ones when I have more budget.
 
Put in the C clips.




 
I put the ruler in the pictures so you can have the idea about the size.


 
Install the arms.


 
I used screw glue 242 during assembly and hope this is proper.
Finally, the foldable mechanism looks fine.




 
More pictures










 
Here comes some pictures for the frame when arms are folded.




 
The parts for landing gear didn't arrive yet. I shall measure the total weight when everything is set. The size of the quad is about 550mm that is good fit using 12 inches propellers. The flight controller I used is Pixhawk.
 
 CUAV Pixhawk 2.4.7 flight controller  [pixhawk247]  CUAV Pixhawk 2.4.7 flight controller [pixhawk247]  US$180.00  US$108.00 Buy Now 
 CUAV Pixhawk 2.4.7 flight controller  [USpixhawk247]  CUAV Pixhawk 2.4.7 flight controller [USpixhawk247] Shipped from USA Warehouse US$180.00  US$108.00 Buy Now






 
Charging battery ...
 
Here comes the video (a bit shaking as it was taken by my son who is just six years old) :




Article Source: 5iMX.com

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