230 Results for "bldc"

[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...

Mixer seal, take 25.
Log from Arcus-3D-M1 - Full Color Filament Printer
I don't know that is is take 25, but there has been a whole lot of them.I've got a really good feeling about this one! It's tough, the seal portion is self aligning, and I was able to get some pretty good tolerances (with iteration).This one pulls on...

The evolution of FlexSEA prototypes
Log from FlexSEA: Wearable robotics toolkit
Before I adopted the business naming convention (Plan, Manage & Execute) the motor drivers were named PWR_STG, short for Power Stage. The FlexSEA-Execute 0.1 boards that you can see in most of the pictures is the 3rd prototype generation. How did I start...

A little background
Log from Brushed DC Servo Drive
This project came to be when I became tired of searching for a commercial option for closed loop position control for a CNC machine I'm developing. The majority of the retrofit CNC drives I found were stepper motor drives, and altough many brushed or...

Pneumatic Artificial Muscle (PAM) testing
Log from Droidbot 07 - Wheeled-Quadruped
I’ve been playing with DIY air muscles on and off since 2007 and I'm contemplating using them on Droidbot-thingy, providing I'll be able to control them satisfactorily. I know they're strong and can be parallelled to further increase their pulling power...

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....

First approach to the dynamic model
Log from BLDC Walker
In this entry, I would like to describe my struggle with the dynamic model of the quadruped. Based on two articles from MIT, IIT and mostly by changing the code available on the MIT’s repository for Cheetah robots I could run the Balance Controller...

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...

Week 5: Patiently Waiting
Log from My Journey of Building a Performance Quadruped
The last two weeks i have mostly been working on other projects such as my water scooter project which you can check out here. I am still waiting for the servos to come. I ordered them of Aliexpress and may have selected the Chinese warehouse instead...

Motor Controller PCBs
Log from Wolfie
Hi!Finally the PCBs have arrived. I guess I imagined them a bit bigger, as I was surprised by how small they really are. The outline is just 33x33mm, so I will be able to fit it behind almost any of my smaller BLDC motors. Since I last wrote I've been...

[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:...

[M] Sculpting a look
Log from Tetrinsic [gd0041]
This is essentially how I imagined this curve would go… ish… it's kinda boxy though. I've also moved the strain guage right to one side so that I have space for some kind of linear slider. I need 33mm and since the total length target is 70mm, I might...

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