195 Results for "bldc"

3D-Printed Electric Longboard
Instructions from 3D-Printed Electric Longboard
Step 3: Motor MountSo, this is basically the most tedius part of the build if you are looking to design a motor mount out of ABS that can withstand large braking forces. The files can be found on my Thingiverse. It has been designed in such a way that...

Design decisions - OMG Arduino
Log from Smart BLDC controller for eBikes with BLE
Choice of microcontroller First and foremost the decision of the microcontroller had to be made. While there are dedicated chips available, I like to code embedded systems and thus the whole control should be done in firmware. The following GPIOs are...

Powerful Brushless DC Motor Driver/Controller
Details from Powerful Brushless DC Motor Driver/Controller
The Power PACks are modules designed around the PAC52xx family of devices and are all meant to drive motors of different topologies, sizes and algorithm styles. All of these modules are very similar in construction, albeit there...

MPRT - Modified planetary robotics transmission
Details from MPRT - Modified planetary robotics transmission
Using it! I've decided I need a transmission for testing out the #FilaMecanum concept, so this is going to be it. Background First I think I need to explain how a normal planetary drivetrain is constructed. The power input...

[B][M] Pulley, sprocket, slider mount and BOM
Log from Tetrinsic [gd0041]
I've done a "quick" (a.k.a. 60 minute) model of 3 more components. The sprocket now has 3d modelled "teeth" that I took inspiration from searching "ball chain" on thingiverse. I've modelled it such that the diametric magnet is held inside. This...

[M][L] Dual 1.14" PCB (and prototype's CAD and eCAD finished)
Log from Tetrinsic [gd0041]
So I've spent the past 6.5 hours working though Fusion 360 crashes to bring Tetrinsic v361 into existence. I've replaced the old 1.47" pad with a new custom pad for a PCB that connects the two screens, converted the FPC of the displays into sheet-metal...

Backyard's first tests of prototype 2
Log from 3D PRINTED PORTABLE WIND TURBINE
I needed to do these tests because I have to decide if I need to use gears or other power transmission mechanisms, in which case I would change the design a bit. It is not enough to make the propellers rotate, it is necessary to generate an adequate...

Teardown: Xiaomi Mi Vacuum Cleaner Mini (EU)
Details from Teardown: Xiaomi Mi Vacuum Cleaner Mini (EU)
In the top of the device, there is a plastic cap holding the motor in place. I undid the three clips by squeezing the device to allow for a bit more wiggle room, then prying with a flathead screwdriver. Under the plastic cap there is a rubber thingy,...

Can a Brushless Motor Maintain a Constant Speed ?
Hacker page by Mark Liu
Can a brushless motor icludes brushless dc motor,dc gearmotor,etc. maintain a constant speed when the load changes? The answer is: yes. If the load applied to a brushless motor changes, whether it increases or decreases, the motor can maintain a relatively...

How to Choose the Right Brushless DC Motor?
Hacker page by Mark Liu
Compared with ordinary traditional motors, brushless DC motors have the advantages of high power density, high efficiency, and long life. Brushless DC motors have a simple structure and few components, so they are easy to maintain and have a long service...

What are the advantages and disadvantages of brushless DC motors and brushed DC motors?
Hacker page by Mark Liu
First, in simple terms, their differences are:Brushed DC Motor has a set of carbon brushes fixed on the rotor that are in contact with the AC excitation electrodes to provide the electromagnetic field required by the rotor; There are no fixed carbon...

Why are Brushless Motors better than Brushed Motors?
Hacker page by Mark Liu
The reasons why brushless motors are better than brushed motors are as follows: 1. Brushless motors run faster than brushed motors With brushed and brushless motors having the same rating, the brushless motor will be faster because it is more efficient...

A different approach
Log from Droidbot 07 - Wheeled-Quadruped
In order to help me decide on whether to proceed with PAMs or switch to motors, I made a crude model of a leg. It's difficult to see here but there's 4 PAMs for the hip (up/down & left/right) and 2 PAMs for the knee. The paracord "tendons" that attach...

Field Weakening Support
Log from Axiom: 100+kW Motor Controller
That's right, Field Weakening! A major milestone for the VESC platform! In our public repo we pushed the code to add support to FW to set the motor speed beyond base speed, and Max Torque Per Amp support, intended to drive IPM motors. We'll...

Log 3 - 12th March
Log from Open Source Spherical Motor
Lots of progress :) Design Design has been finalised, with changes only to be made for tweaks in manufacture. The plan is to produce 3 separate devices that can all be assembled on the same rig. i.e. they are all modular devices. Device #1: AC Induction...

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