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Could You Imagine CNC Technology Could Used To Produce Drone ?

If we have to say cold machine can tell a story, then we should proud of human creativity and invention , a talent designer make a idea to a real product , that is not easy and a challenge travelling , as CNC Machinery parts manufacture, we step in at development stage and support prototype for you to see the fast sample for test or improve , we also step in at launching product stage , which when you decide to purchase machine parts to assemble a machine project .

here is a story that how CNC technology and 3D Printing make a drone to be made ? let’s go through details :

what makes up a drone?

a typical drone has the following elements that determine its functionality:

1. framework. this is the main part, and the most important part. it holds all functional objects together, determines the overall strength of the structure, and affects the aero performance of the equipment. i’m going to talk about this part mainly because it’s actually the only one that you have to design and manufacture yourself or use a prototyping workshop (if you don’t have an engineering background, it’s highly recommended because in the end, it’s going to be cheaper and faster because prototyping will create high-quality frames, better choice of materials, and will advise you on designs)

2. motor. you may need 4-8 motors, depending on the number of rotorcraft you want. the motor determines the rotation speed of the drone blade and therefore also determines its power capacity. there are many motor manufacturers that offer inexpensive and reliable solutions.

3. electronic speed control. these devices can synchronize your propellers and prevent your drone from going crazy. they are also cheap and easy to find.

4. propeller. now, these are the main moving parts of the propeller. their blades have complex geometries, and their size and shape depend on the weight and dimensions of the frame, so you may need to order them with the frame.

5. battery, connectors and controls. secondary operations will require some smaller electronic components. examples include connectors, batteries and receivers with remote controls to fly drones. you may also need a camera, as flying a drone without a camera is like walking on one leg.

As you can see , Modern industry offers many off-the-shelf solutions for drone manufacturing , since manufacturing electronics is a complex and expensive project , I recommend that you only buy existing parts , weather you are an amateur or intend to sell these things, if your sales grow, then you might consider making your own circuit, in this way, we are left with two major custom components that are critical to the performance of the drone , of course, you have to make some extra connectors and battery enclosures , however , there is nothing wrong with their design and can be 3D printed with the flick of a finger.

how to make a custom drone framework

therefore, the framework is very important for the stability and overall structure of the drone. when you learn to fly your plane, you’re sure to hit something and damage the frame, so it should also be easy to replace or repair.

currently, depending on the number of propellers you need, there are several possible drone frame designs. the more propellers, the more stable the drone, but also the heavier it gets. the most critical parameters are stiffness and weight. this is why the most common materials are as follows:

1. wood. the cheapest material, the easiest to process, can be made into a frame with the simplest tools. the appearance and reliability of this kind of drone are not high. it is easy to replace, but it is expected to rupture with minimal impact. basically, it is a good choice for enthusiasts. frames are usually machined on wooden lathes or simpler instruments and then glued together.

2. Plastic , this is the most obvious option , many polymers are lightweight , have high tensile strength and the best polymers can be processed quickly using modern technology. for example , plastic frames can be manufactured using 3D Printing or polyurethane casting prototype techniques ,this makes it an excellent choices for creating prototypes of commercial drone models , you can use PR technology to easily produce , assemble and test in small batches and when you are ready, order an injection mold.

3. Aluminum, you should choose this material to make the most durable and robust system which can withstand a lot of stress , it is also the heaviest material , usually, such a frame will be machined by CNC , If you only make professional industrial drones, you should use an aluminum frame or if you tested or approve the design , you want to look very pretty and shiny .

let’s make a propeller

the propeller is the most complex part of a drone design. you have to actually calculate the geometry of the drone based on its weight to achieve the required thrust. fortunately, there are plenty of services that can help you do just that. if you find the geometry too complex. you can always order paddles from the prototyping workshop, where competent engineers will design, calculate and build the perfect propeller.

so, obviously, diameter is important. the larger the blade, the more air the propeller can pump. however, you should note that the propellers need to be synchronized to prevent them from hitting each other. that’s why larger propellers produce less maneuverability. you should choose the one that suits you best: a larger drone load or better maneuverability.

the angle of attack is another important feature of the blade. it’s basically the angle at which the propeller hits the air and deflects it. the greater the efficiency of the blades, the better, however, since the wind will be greater, a larger motor is required. the closer the angle of attack is to the center of the propeller with a constant pitch, the lower it is. however, in the case of alternating angles of attack, the geometry of the propeller becomes too complex.

Propeller blades are mostly 3D printing or cast ,silicone foam as a plastic frame, these methods are most effective in achieving complex geometries at low cost and meanwhile, the blades are post – treated because a good surface finish reduces the vibration of the drone in flight.

you should also remember to balance the propeller. it’s a simple process. you can do it with a pencil and a knife. simply mount the blade on a pencil placed horizontally. the propeller will most likely rotate around its axis. so, cut a little from the root of the blade, and it tends to stay in the bottom area of the pencil. repeat until the blade is mounted on the pencil and the blade does not turn.

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