Permanently Mounting a Rearview Mirror (No Mirror Glue)

This post details a more permanent mounting for a rearview mirror. I bought an old vehicle with a rearview mirror that was laying on the ground next to an empty bottle of rearview mirror glue. I bought a new bottle of 3M rearview mirror glue kit and reattached the mirror by devoutly following the instructions in a good weather. Still, the mirror fell off a few weeks later after I adjusted it too aggressively. ...

May 18, 2020 · 2 min · PCB Isolation

Swapping LEDs and PCB in a Dimmable Nightlight

I’ve looked and been unsuccessful in finding household nightlights that meet my criteria: auto on/off dimmable 1800K CCT decent CRI uniform illumination no flickering power efficient The closest I found was this nightlight. I like everything about it except the 3000K CCT. I believe it’s a bit too cool for a nightlight. I ended up swapping the 3000K LEDs for 2200K LEDs. I would have preferred 1800K, but was unable to source them on Digikey. ...

May 11, 2020 · 1 min · PCB Isolation

Octopart API Pricing Scheme

Octopart, the search engine for electronic and industrial parts, doesn’t post the pricing for their API on their website. There’s a bit of irony, since Octopart scrapes pricing from sites like Digikey, who also tries to hide their pricing. The Octopart API is a great resource for pricing BOMs. KiCost is a great example of tool that uses the Octopart API (although KiCost has moved away from Octopart due to the paywall). As of June 2019, the Octopart API is as follows: ...

June 6, 2019 · 1 min · PCB Isolation

How To Spot a Counterfeit or Refurbished Motorola Razr V3

Note - There are many versions of the Motorola Razr, each with subtle differences. Even similar version have differences between countries. Not all of the differences of this counterfeit/refurbished Razr will apply to your Razr! This applies specifically to the Motorola Razr V3, but you can find similar discrepancies on a Razr V2 or V3i. If you have a feeling the phone is fake, that’s a good indicator that it is. ...

April 4, 2019 · 2 min · PCB Isolation

Motorola Razr V3: Real vs Counterfeit Teardown

Left- Authentic Razr V3, Right - Counterfeit Razr V3 I recently bought a Razr V3 on eBay. The listing below shows that it is made by Motorola. The pictures are of an authentic Razr. However I received a counterfeit Razr. PS - I wrote a quick guide on spotting counterfeit Motorola Razr V3’s (without disassembly). If the phone would have worked, I wouldn’t have cared. But it wouldn’t get a signal with my SIM, so I complained and got a refund. ...

March 31, 2019 · 3 min · PCB Isolation

DIY Prescription Scuba Dive Mask

This is a custom bracket for holding a pair of prescription lenses inside a scuba dive mask. The goggles here are the Atomic Frameless 2. These goggles are great quality, have a wide field-of view, and have enough clearance to fit a pair of glasses inside. I designed the bracket in Autodesk Inventor and printed it on a 3D printer. You can find my design files on Thingiverse here. If you want to customize this bracket to fit your specific glasses and mask, you can get a free copy of Autodesk Fusion 360 here. ...

November 5, 2018 · 1 min · PCB Isolation

How to Export STL File from Inventor to Cura for 3D Printing

This how-to is for exporting a part from Autodesk Inventor and importing to Ultimaker Cura for 3D Printing. Once you export a STL file, it can be used with programs other than Cura. Step 1 Open your part in Autodesk Inventor Step 2 Go to File->Export->CAD Format Step 3 A “Save As” box should appear. Click “Options” ...

September 30, 2018 · 1 min · PCB Isolation

How To Fix Axis/Rotation Orientation between Inventor and Cura

This how-to is for correcting axis orientations or rotation issues when exporting a file from Inventor to Cura. improper orientation causes this issue in Cura Step 1 Open Inventor. Export as an STL and import into Cura (how to export a STL here) Do not rotate the model in Cura Step 2 Rotate your view in Inventor to match the Cura model. This will make the next steps more intuitive. ...

September 30, 2018 · 1 min · PCB Isolation

Zhangjiajie National Park PDF Maps [English]

Map 1 Download PDF or full size JPG Map 2 Download PDF or full size JPG

September 25, 2017 · 1 min · PCB Isolation

Singapore One Day Layover – 6 to 16 Hour Walking Route

Singapore is a great place for a 1 day layover. You can fill a day with many of the city’s amazing highlights. Arriving at the Airport The airport has baggage storage for s$11-20/day depending on the weight. Citizens of all countries not listed here can get a free visa on arrival for 30 days. You can take the metro straight from Changi Airport. You’ll be tempted to buy the s$10 1-day unlimited metro pass, but skip this. 4 metro rides total to about s$8 so it’s cheaper al-carte. Plus, you won’t have an additional s$10 deposit to collect on returning to the airport. ...

September 1, 2017 · 3 min · PCB Isolation