A Connector board is used to connect the S-drive BLDC driver to the 24 power supply and to the teensy microcontroller. They are designed to be stacked one on one with brass spacers.
BLDC motors are effectively Steppers with three coils instead of two (often called 3-phase.) That means three half bridges and three PWM signals will turn the motor. In fact, if you open up a hobby ESC you'll find six mosfets and either an 8051 or AVR.BLDC's...
In the last log we showed how the physical inverter design came about, lets look at the motor control signals are generated.We keep going on about sinusoidal control. Here is why.Brushless DC (BLDC) motors are called so because they followed on historically...
The stainless steel 2.0mm hollow shafts for part rotator idea number one showed up today. I set to work rebuilding the BLDC motor with it. It was relatively painless. Pressed out the old shaft, pressed in the new one. ...
To make this 'gun' feel like a GUN, I will require some electronics and other hardwares.First, a list! I love lists. Especially numbered lists. They make me feel like I am accomplishing something even though I am not...Components by 'function'::1. the...
...and among all the changes the sender has now got 3D rendering of lathe toolpaths.The machine will get a new leadscrew soon, got a second hand ballscrew from Korea that I'll attempt to mount. The BLDC motor was a joke, I have switched to a washing...
Connector board can be used to make easy connections to BLDC driver. It has RS485 chip onboard, so you can communicate with UART and RS485.As you can see on this picture S-drive uses only one cable for everything; data and power. Daisy chain is really...
Even though it is many months ago that I wrote the first log in this project, I am a lot closer to my first design than I was then. As presented in the previous post, there are three main methods to control a brushless motor, each one having slightly...
With pride I can present the first hardware version of my own BLDC controller which I named the MBLDC for obvious reasons. In the last update I gave my reasoning for the different components I selected, as well as the wish to keep it small, and to keep...
We have just published a tutorial on how to properly setup and calibrate your Incremental Quadrature Encoders with SOLO to control the Torque, Speed and Position of your BLDC, PMSM or Coreless Brushless EC Motors. https://www.solomotorcontrollers.com/how-to-connect-quadrature-incremental-encoder-to-solo/...
The 6th axis is the most integrated and thus most complex axis of the robot. In a small form factor it includes: - 12bit incremental motor encoder - BLDC motor - wave gear - 18 bit absolut magnetic encoder - bearing arrangement - peripheral connector...
Yeah! #Motor as Encoder Use a BLDC motor as an encoder. Almost *Exactly* as I'd imagined. Combine this with anaQuad, and yer all set!Note that anaQuad *also* works with two sources that are 120 degrees out of phase, so only two windings of the...
Pricing all the parts for 2 bldc motors, two vesc controllers, charger, etc for what I wanted to build here put me at about $400. That was a bit high...I have revised the plan. Do what I can using what I got on hand, and spend less than $100...
For testing v0.7 we conducted two tests. The first test was to do 10000 cycles of lifting a 5kg weight up and down. The iceboard here controls the bldc motor mounted in one of roboy 3.0 muscle units. The white dyneema tendon is rolled up by the bldc...
Do PAMs really have much benefit over motors? Some (subjective) pros & cons of PAMs vs BLDC motors for this application: Pneumatic Artificial MusclesMotors (& gearbox)+ Powerful for their weight/cost.+ Fast.- Have to trade speed for torque.- Do I have...