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Rob Schwartz
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3D Printing: HMT Rajat Caseback Remover - Design
This week, I'm designing a tool to remove the back cover of a mechanical watch. The specific watch is the HMT Rajat automatic watch model, which I picked up on eBay for $7 as a neat project. The destination of this project - the reverse side of the watch ca...

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Unboxing HP 16500B Logic Analyzer
This week is a lengthy photo gallery which goes through the unboxing of an HP 16500B logic analyzer. Enjoy!

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Viewing an IC Fragment Underneath a Microscope
I have a small sliver of an integrated circuit in my possession, and I decided to put it under a microscope: It's truly amazing that we take this for granted inside our computers and electronic devices. These photos are at 10x magnification. This photo was ...

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3D Print: Filament Spool Identification Tags
This week, I am releasing one of my own designs: 3D printed filament spool identification tags!   The 48x48mm tags are designed to provide a quick means of identification for reordering a roll of filament, which I label with a piece of tape and a number. Th...

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Micronta Frequency Counter 22-351
I scrounged up a frequency counter for free, and it looks to be a joy to use! Although I do have a cheap function generator from eBay, I do not have a frequency counter. This frequency counter would come in handy! It comes in a perfect small package with an...

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Thingiverse Reviews: #1115785 Nintendo Gameboy DMG Backdoor Replacement Part 2
Continuing on with the Thingiverse Reviews post from last week... let's print the part! The bed is heated up to 30 degrees C so that the filament will stick, and the extruder is heated to 185 degrees C. The printer makes 3 skirt loops around the part to get...

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Thingiverse Reviews: #1115785 Nintendo Gameboy DMG Backdoor Replacement
Welcome to another installment of Thingiverse Reviews! This time, we are looking at a common problem and the power of 3D printing to fix it: the plastic consumer battery door from a friend's Nintendo Gameboy has gone missing. (Tetris is quite an enduring cl...

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United Airlines runs Red Hat Linux
I recently took a plane flight on a United Airlines Boeing 757, which has consoles on the rear of each seat. The consoles restarted before we took off, and I got a glimpse of Tux (the Linux penguin) before the screens got out of the text mode. Here is a gal...

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Yamaha Amp Repair: Digikey Capacitors
The Digikey replacement capacitors have arrived! For those of us unfamiliar with Digikey packaging, here is a walkthrough. The capacitors arrived in a massive box, size 5" x 7.5" x 7.5". On the top of the box is this funny paper packing material that squish...

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Yamaha Amp Repair: Ordering Capacitors
Well, it's time to order the replacement capacitors for my Yamaha amp. Of course, I will buy these components new, in order to maximize their lifespan in my amp. Here's what the part info looks like: At $5.29 a pop, these capacitors aren't at a bad price at...
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