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257 Results for "bldc"

  • 2019

  • The ROBOScythe almost ready for use.  The new design based on VSLOT 20x20 extruded aluminium The drive system based on two MG996 servos and GT2 pulleys. Side effect: I created a GT2 Pulley pack on Thingiverse. The cutting equipment based on...
  • Scaling

  • The 4 1000kv motors are a bit unwieldy when testing. Figuring out the configuration, and the cost at quantities above the 4...So scaled down to micro core-less motors.In total we have 40 core-less motors, and 80 micro props. :)Each motor can draw .8A...
  • Robustness

  • While using the tuning feature in my other project BLDC motor controller, I had some issues with the values being written to the target became corrupt. This caused some unintended rotor acceleration when tuning the duty cycle... The reason for this turned...
  • Multiple boards

  • So as a result of the change in processors, I have changed the BLDC controller design. This work has been a extrapolation from OpenBLDC, which was my HaD Prize 2014 entry. The design is that the Nucleo will plug into a shield but this will have two sets...
  • Interference on ground and 3.3V

  • I'm trying to build a humanoid robot based on BLDC motors instead of steppers or servos and I'm designing my custom controller board. I'm facing this beginner problem: powerful motor de-stabilizes power supply for the controller. I will write up the...
  • First working release

  • Lots and lots happened since my last post - I think I have done 5 or 10 versions before finally arriving at something that I'm (relatively) happy with.Video first, then a couple of words.The controller emerged as an attempt to build direct-drive...
  • Operation!

  • So, this is the part everyone has been waiting for. Franken Pump drinks its first blood. And by blood I mean.... wait, Frankenstein doesn't drink blood...  Anyways! Horrible humor aside.. The operation of this pump is exciting!  It's probably...
  • Boards In Action

  • On this video I do a quick introduction to some of the Power PACk boards and how they can drive a small aerial vehicle motor. In this case, the motor was taken to 2600 Hz at 26V and 3.3A or so, which is in the 85W worth of input power. How much power...
  • Day 3: Y Axis

  • To conceal the rough ends of the rails, I covered them with printed end caps, which also act as belt tensioners. The belt brackets are fastened to the end caps and tightened using M3 screws. Afterwards, I fixed them to the rails with more M3 screws...
  • Works before this

  • Using a motor as a rotary encoder is obviously not new. You can read the previous log entry to see how I was inspired.But every attempt I saw so far used the motor (BLDC, PMSM or hybrid stepper) as a generator, and measured the phase voltage looking...
  • Mechanical Build - rear axis

  • To convert the bobby car to electric , I did remove the original plastic wheels and replaced them with 6.5" BLDC hub motors which can be found on hoverboards.First, I used a saw to remove some plastic from there area where the original rear wheels were...
  • Software requirements

  • Outputs Generate step/dir for controlling a stepper motor, or generate PWM/dir for controlling a BLDC motor or standard DC motorFor the prototype, the current motor is a stepper.  The end goal is to drive the BLDC motor. Software generates a trigger,...
  • First fully assembled leg prototype!

  • Very exciting to finally get all the parts in and machining finished so that I could finally fully assemble a prototype leg.  Couple of hiccups here and there but it will be fully usable for performance testing and the initial Shakedown cruise.  Once...