220 Quadcopter with ZMR (250?) arms - 5" props max by nickpgre

Last crawled date: 3 years ago

Update: 28th of May 2017
+ New part added "Top Plate V2 - Corrected": I am finalizing this thingy by adding a new frame part I personally like and has managed to withstand severe crashes! There is an indication of the camera angle and will fit foxeer like cameras. With enough slots for cable and components management as well a slot for any additional component. The height of clearance is 24mm.
+ New part added "Battery Holder V3": The model can be sliced with up-to 3 perimeters for additional strength and not intercepting one another



Update: 4th of March 2017
+Added "Basic building requirements" section
+Added "Other notes" section


Update: 5th of March 2017
+Added new camera mount v2: This utilizes bolts with wider head and also will keep the camera at approx. 50 degrees

This is my first attempt to create a quadcopter and use the 250-ZMR arms that were laying around and the carbon arms will make it more crash resistant.

It is not a pure X-frame as the distance between arms, on the left and right side, is longer than the horizontal distance from the front and back arms, as an attempt to increase the overall agility for a more aggressive flying.

Basic building requirements:
4x ZMR 250 arm, 3mm thick
4x 35mm long standoffs
The frame will fit any standard sized (30mmx30mm) PDB and FC
Battery can either be mounted on top or at the bottom. The plate holder can be used as a component platform for making some extra space between the middle plate and the rest of the components for a battery strap to pass through

Battery holder will fit a 4s (1550mah) battery


Camera mount will fit a Foxeer 1177

Printing Settings recommendations:
Middle plate: This part will prove how crash resistant the frame is and it should be printed with at least 35% infill, 3 horizontal perimeters and 3 layers for both bottom and top.
Bottom plate: Like the middle plate above this also should be printed with similar settings so the frame to become more rigid.
Plate holder: This part does not need to be as rigid as the above ones. I primarily use it to create a small platform between the middle plate and the components so to make it easier for a battery strap to pass through.
Other Notes:
Regarding the tolerances, all holes will tightly fit 3mm bolts. For both the bottom and top plate, I use plastic washers, 8mm in diameter and 1mm of thickness
In the case of the battery is mounted at the bottom, there shouldn't be any bolts coming in direct contact with the battery for no reason.
Bear in mind that since this is a work in progress, any suggestions are very welcome.
Have fun and happy flying!