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ralphjy

Calibrating My 5.5W Laser

Posted by ralphjy Top Member Feb 22, 2020
I'm getting ready to try doing some laser cutting with my 5.5W laser that's described in this post: Trying out my laser .   I needed a simple way to get the laser focused on the material I'm cutting and I've found that focusing it visually can be time consuming and also problematic with reflective material.  I decided to use the technique that they used with the Community College C02 lasers which is a mechanical calibration block.  I think this is what most people do.   I f ...
ralphjy

Wii Fit Plus - 4000 days

Posted by ralphjy Top Member Feb 17, 2020
In today's world of planned obsolescence of consumer electronics products, I am always delighted when I'm able to use something well past its expected expiration date.  It took me a long time to swap out all of my CRTs (TVs, monitors, oscilloscopes) because they were all still functioning but that's another story......   I bought a Nintendo Wii back in March of 2009 and it's been reminding me lately that I'm nearing a milestone of 4000 days since I started using it.  I've pla ...
I installed a solar system on my roof at the very end of 2017.  I have a description of it in a previous post: Solar System Description .   I thought that it would be a useful exercise to examine the performance of the system over the first 2 years and compare it against the design goals/expectations.   The system that I installed was optimized for cost rather than performance.  It was designed to have around 10% margin above my annual energy usage.  Projections were b ...
ralphjy

TS-04 DMM Data Plotting

Posted by ralphjy Top Member Feb 15, 2020
This is a followup to my previous post: DMM Logging with Web Bluetooth .   I wanted to extend the HTML interface to allow me to plot the data that is received via Bluetooth from the DMM.  It seems that nowadays when I want to capture and visualize data that I'm usually using some form of IDE or dashboard in the cloud.  There are many great services out there and they are very good for analysis and generating reports.  For the purposes of a tool like a DMM I thought that it w ...
I frequently have the need or desire to do some measurement logging when developing my projects.  In most cases this is a temporary requirement and involves measuring voltage, current, or temperature.  The ideal instrument for this would be a wireless DMM that could communicate with a remote computer or tablet.  I recently completed the Path II Programmable training program and was looking forward to using one of the graduation awards - a Fluke FLK-3000FC DMM with wireless capabil ...
I just received a large box from Element14/Newark with my PIIP Graduation Awards.  Thanks danzima and rscasny !   Inside there was a Weller WE1010 Soldering Station and a Fluke 233 True-rms Remote Display Digital Multimeter.   The graduation awards are a great plus to what was a very useful and satisfying FPGA training course using the Ultra96v2 board. I've been looking for a replacement for my trusty old Weller WTCPN soldering station that I've used for about 20 years.  ...