Step 1: Version 1's Build Log

pcbsjustarrived.JPG
reflow.png
assembled1.JPG
assembled2.JPG
old_v1_tx_casing.png
old_version_1_tx.png
old_props.png
walkera_x_twin_motors.png
old_arm_design.png
old_motor_arm.png
kindofdone.JPG
charging.JPG
This instructable will focus on building version 2 due to the flaws in version 1, but I have a lot of pictures taken during the construction of version 1, I'm putting them all in this step. I think it's a good idea to show people my other techniques so everybody can learn from both the benefits and mistakes.

Version 1 is soldered using the reflow soldering method (see my other instructable: http://www.instructables.com/id/Hack-a-Toaster-Oven-for-Reflow-Soldering/), version 2 was not due to time constraints and l didn't bring my oven to school. I managed to solder the QFN chips with a heatgun.

In version 1, the flyback diode for each motor was mounted onto the arms, but in version 2, the flyback diodes are in the main quadcopter body PCB instead.

In version 1, the propellers required a drilling before they fit onto the motor. The motors in version 2 comes with the propellers pre-attached so the drilling is no longer necessary. However, please read step 6 to see why you should use the motors from version 1 instead.
 
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