98 Results for "bldc"

Using an Arduino to flash ESCs
Log from Arduino Skillz
By 'flash' I don't mean what I did here...I am trying to flash some escs with the right firmware to make them be able to reverse the direction of the BLDC they are driving... maybe it's a myth or a pipedream, but this is my adventure...Update:I got my...

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...

[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...

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...

[E1][R] Taking load cells out of pocket scales
Log from Tetrinsic [gd0041]
Cheaper Load Cells So I was watching this teardown video of scales because Detail is considering them for one of his projects and I was wondering if I should chance the 300g load cells for more precision or stick with the planned 750g. I thought...

Dispersive Rotating Prism Spectrometer
Log from prism laser scanner
The aim of this blog is to create prior art for a dispersive rotating prism spectrometer. My inspiration here comes from Jerry de Vos. Jerry de Vos is working on a plastic scanner. This project aims to develop a simple handheld scanner that can detect...

Teardown & Planning
Log from BLDC Variable Speed Water Pump
Lets start off with the unsuspecting subject that will serve as the organ donor for this Franken pump project. The Pacific Hydrostar 3/4HP clear water pump I picked this bad boy up from Harbor Freight about 2 years ago for a parts washing station. If...

Released Source Code Today
Log from TrillSat
Ok, the first version of the source code for TrillSat was released a couple of hours ago under GPL 3.0, and a copy of the source tarball was uploaded to the Files section of this project. It includes the most important files, the OpenSCAD program...

Build hope?
Log from TrillSat
The twenty 2018 Hackaday Prize Power Harvesting Challenge winners were announced today, and again I did not win a single thing, not even a non-monetary achievement. This is the 3rd loss for TrillSat in a row, and I see a trend here, unfortunately....

Log Episode VI: Return of the Manufacture
Log from Open Source Spherical Motor
After much journeying through the murky world of commercial laser cutting and 3D Printing I have been forced to abandon my BLDC Spherical motor as it would cost far too much. As it stands I have already managed to spend my budget twice over by cannibalising...

[E1][T] Force sensor instead of magnets?!
Log from Tetrinsic [gd0041]
Me yesterday: Me on the train back to my university: m1 (me 1): m1: Rememeber how the light ring of the SmartKnob View had an animation based on how hard you pressed the knob? m2: Yeah. m1: And why didn't we go with the first pre-Tetent idea? m2:...

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