8219 Results for "3D%20printing"

Enclosure hell
Log from Prism
Before going on with the electronics, I'd like to write a bit about the most painful and stressful part of building a product: the enclosure. ---------- more ---------- It all started when we pitched the idea to a friend who's a product designer and...

Using the UC3525 pulse width modulator
Log from Improve the Haber process
For my project I'm building a high voltage ultrasonic power supply (400V, 28kHz) based on the UC3525 pulse width modulation chip.There's very little information on the net that explains how to use these chips, so for this week's update I thought I'd...

Mechanical design
Log from Solid state flow sensing using EIS
As of writing this log, the build is finally completed, which allows me to talk about the design decisions concerning the mechanical side of this project, since I now have the photographs to illustrate them. In this post I will only talk about what connects...

Hack Chat Transcript, Part 1
Log from Metal 3D Printing Hack Chat
Dan Maloney12:00 PMOK folks, time to get the ball rolling. Welcome to the Hack Chat, I'm your moderator Dan, along with Dusan. Today we're pleased to welcome Agustin Cruz to talk about what he's been up to with metal 3D printing, I think I saw him log...

Hardware Monetization Strategies
Log from FarmBot - Open-Source CNC Farming
In the last blog post, I outlined our reasons for and potential paths to commercialization concluding that it is commercialization, or monetization, that is a necessary component to bootstrap the FarmBot Project towards community sustainability. In this...

Transparent Acrylic Inlays
Log from Driverless Mouse and Keyboard Sharing
Ponoko Laser Cutting Service: Front Panel Tests.3mm clear acrylic skull inlays in black (painted) acrylic, with two 2mm red LED eyes. The red LEDs are not connected yet, but look like tiny jewel domes in the light. There are some more pictures below.The...

One implementation : outdoor cam
Log from SauronPi - autonomous Raspi camera
I have not decided all the objectives of this project. However, in order to "get things done", i started a subproject : an outdoor, battery powered and wifi camera. This one is designed with a friend of mine who does birds pictures, and thus is meant...

Return of the SEPIC
Log from $1/W True MPPT
A long time ago (man, almost 1.5 years ago) I tried my hand at a SEPIC, with mixed results. While the topology indeed works as a MPPT, the two inductors required by the topology made the cost quickly go out of budget (switching at 31kHz). So, I canned...

Navigation Chassis v0.3
Log from Open Autonomous Domestic Robots
With the previous version of the chassis in a working state, I only made two changes for version 0.3. The first change was a major one. As I mentioned previously, I was still a little unhappy with the ground clearance on the last version of the chassis....

... and we're off
Log from DIY Pick and Place
I'm on the hunt to build a cartesian pnp. I'm not looking to try and build the cheapest machine out there, but I am out to build a highly reliable and accurate machine for the least cost possible.I've been through countless 3D printers, CNC machines,...

Preparing the 1/2 Scale Rocket
Log from Amateur Rockets
The Rocket team is going to have a busy three weeks ahead of us; right now we're all doing our best to get our 1/2 scale ready to launch as soon as possible. This weekend a few members of the team and I are going to a night launch sponsored by ROCC,...

Moisture Sensor Calibration and Tuning #1
Log from Mycodo - Environmental Regulation System
Before beginning to talk about today's topic, I wanted to briefly say the SIMB conference I just returned from was a huge success. I was able to listen to a lot of great talks and share ideas with many great scientific minds. I also won the Carol D....

6. A big update / a less ugly prototype
Log from SPUD - A self-contained scanner camera
The last SMD components took a little longer than I had hoped to come in (this past Monday). With that order in, I had all the parts to start populating the Main PCB, constituent parts shown below (SMD resistors omitted). Adafruit 1.8" TFT (160 x 128...

The start of a probe to measure the magnetic field
Log from low-field MRI Continued
A quick update, with designs for the magnetometer breakout board. It's been a very busy week in the lab (conference season), so I unfortunately haven't had a great deal of time to devote to much other than data analysis, eating, and sleeping. I've tried...

Mk1 Munching engine and some thoughts
Log from Solar lawn sheep
I have been beavering away at the munching engine since my last update.I have worked up the concept of using pinch belts mentioned previously and prototyped it with some success.Explanation of the concept:The idea is pretty simple. Two grippy silicone...

|<
<
369
370
371
372
373
>
>|