The 27-May 3D Printer Workshop at CTH went well. Our new pal Josh brought in his older AirWolf 3D AW3D XL printer. This thing has a huge 200×300 mm heated build plate. However, the build plate was a PCB-style which flexed and warped when heating up. This gave an inconsistent print surface height. If you’ve printed before, you know the height of the print surfaces has to be pretty darn consistent to get first-layer adhesion. Josh bought a replacement aluminum build plate, but unfortunately, the mounting holes were not the same! We can fix that… Continue reading
My beloved Afinia H-Series 3D Printer has not been working for several weeks. The bed would not heat up and the printer would not start printing because the bed was not up to temperature. I took the opportunity at the CTH 3D Printer Workshop to troubleshoot the Afinia. Well, I found the cause after a little disassembly. Do you see a problem here???? Continue reading
I bought the Bose Quiet Comfort QC15 headphones about 5 or 6 years ago. They are great. However, one of the ear pads started coming apart, and no sooner did that one finish unraveling, the other side started. The headphones were still usable but much less comfortable and didn’t stay in place on my head. eBay has ‘replacements’ but the comments regarding the fit were not flattering. I figured it would be worth trying to fix them on my own, because, well, I’d have to order some crappy replacements anyways so I might as well really ruin the originals first.
It’s winter and the air in my house is dry, humidity at about 30%. That’s too low to be comfortable. I’ve lived in my new place for less than one year so the low winter humidity hadn’t been a problem for me yet. Good thing there’s a whole-house humidifier on the forced-hot-air heating system. I’ll just turn that on, right? Wrong. I don’t think this system had ever worked since it was installed…. Continue reading
I admit it, I’ve left my garage door open all night… a few times. Doing so leaves all of my precious spare parts exposed for the taking! And maybe more importantly, provides access to the inside of my house…. not a good situation. I’ve been thinking about making some sort of indicator (inside the main house) for when the garage door is open. This would alert the home owner (me) that the garage is open.
After thinking about it for a while, I believe I came up with the simplest way to do this….
Some Graphics Cards for desktop PCs require a lot of juice to work, sometimes even more than the PSU Power Supply can output. And if you decide to run dual monitors with dual Graphic Cards, then one Power Supply may not be enough. There are a few options to elevate this situation. Purchasing a new hefty PSU would result in a tidy but expensive solution. A more DIY-friendly and significantly less-expensive solution is to add a second PSU (which you probably have kicking around) and delicate the 2nd PSU to your Graphic Card(s).
There is one tricky part to doing this, the PC motherboard controls when the PSU turns on and off. This post will go over how to automatically turn on/off the 2nd PSU with the PC.
A few days ago I posted how my wireless phone charging hack was a failure. I tried soldering in a Qi Receiver into my old school Samsung Galaxy Exhilarte SGH-i577 phone. While I got all the goodies crammed in the phone, the phone got waaaaay hot when charging. So much so that the phone gave a warning saying the battery is over-temp and charging was stopped!
Fast forward a couple days. I figured I could try a different charging pad. Guess what? It worked perfectly and the phone didn’t get hot! I can’t explain it. I’m not a Qi expert but I did poke around on Wikipedia to learn more about the Qi technology. From Wikipedia:
“Regulation of the output voltage is provided by a digital control loop where the power receiver communicates with the power transmitter and requests more or less power.”
I’ll be the first to admit my phone is old, very old, but it is small and fits in my pocket nicely. Majority of new phones seem to be near-tablet size. I did want an upgrade and I thought wireless charging would be the way to go… here’s my disappointing story:
You’ve most certainly seen those Qi Wireless Charger Receivers that plug into the micro-USB port on a phone and make your phone have wireless charging capability, right? They are only a few bucks on eBay. I bought one knowing it wasn’t what I wanted because it uses the USB port and it required the use of a phone case to keep it from flopping in the breeze. When I received the charger receiver, I also noticed that it would cover up the flash and part of the camera. The charger receiver was too long:
No, it’s not done yet but the iTopie project continues. As you can see, the frame is painted, the parts are printed and the assembly process is well underway. I’m very satisfied with how the frame came out. It is solid and my added handle is the bee’s knees. The handle is slightly rearward of the current CG but I will try to fix that by putting any additional components as far rearward as possible. It’s still a handy handle, though!