This project log is an overview of a TEC experiment I performed. My experiment was a quick test and not the most elegant way to run a TEC. I wanted to see if this plan was going to pan out without investing a huge amount of time. First, I made a copper...
Hi everyone,My life has been a bit busy recently, and so I havent had much of an opportunity to work on ESPLux. One thing that I have been doing is sourcing various LEDs from people so that I can test out my circuits with a wide variety of light sources....
Hi everyone!I've been hard at work designing up the PCB for ESPLux! I have sent the first revision off to OSHPark for fab, hopefully I haven't missed anything. I am really glad that I made the breakout boards in the first place, they made creating the...
We started thinking about the sensor mechanical fabrication today. It needs to be robust, moisture resistant, corrosion resistant, able to be pushed / twisted by a human into possibly compacted ground, and maybe even driven over. The shaft at this stage...
Board dimensions are 2.01x3.87 inches currently. The PA and heatsink will be at the end of the board. I'm using a mill to shape the heatsink from aluminum and meet both the PA mounting holes and board mount holes. Power requirements are at battery levels...
19 May 2015 - Trip to the hardware store caused a rethink of my air-flow system as I couldn't find what I wanted. But adaptation lead me to a better design. I've changed the schema drawing to reflect the change.18 May 2015 - Slowly taking shape17 May...
I was able to make a first PCB and write some of the code. The display now works and I can do the first tests. I decided to go with the PWM based DAC. The RC filter output is buffered with the first half of a TL082. The second half is used as a non-inverting...
for less than $25, I got:100W cool-spectrum LED (I bet I can run this no problem upwards of 100 ºC)CPU cooler (small heatsink plus fan) - this was really cheap but I think it will work ok90 W peltier cooler - this should improve heat transfer between...
Jo is milling the housing/radiator for our new RF source.We´ll have a heat dissipation of about 2 Watt, and we need a proper shielding, so a good housing is mandatory. You can burn your fingers on the ICs at nominal parameters (500mW output @ 24...
Casing for EMDrive V3 board finished.It´s kind of messy, but should do the job. There´s a serious heatsink to radiate out the 2.5 Watts of power dissipation.
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 family photo of all the parts that went in. However, the heatsink was removed when it became apparent that i would have space constraints. The capacitors were switched out as well. Not shown is a USB hub I burnt out a while back that I used for the...
The bottom all soldered up after getting rid of the heatsink. That green wire near the bottom provides the regulator's power and the blob of hot glue holds it in place. I also replaced the wires from the spring and PCB since i did not believe they would...
The first thing I did was inspect the existing controller and tried to get an understanding of the existing system.As you can see, the controller has three PCB boards inside. A 3 axis stepper controller (JP-382A), 4th axis controller (JP-1635A), and...
I knew that I was going to need to procure a high current, low voltage power supply for this project. To that end, I went down the row of surplus wall warts at Halted a few days ago and picked what appeared to be a suitable candidate. It was rated 1A...