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Tag: lasercut

From a cheap crate to a treasure chest

On December 20, 2018 By Florent RevelutIn HackingLeave a comment

For my kids birthday, my wife wanted to organize a treasure hunt. The idea was to have a bunch of indices, that would eventually leading to getting 4 numbers, used to unlock a paddlock holding chains around a chest. While the idea seems sound, devils in the detail as we wanted the cost to be …

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Building a microscope

On December 16, 2016October 10, 2018 By Florent RevelutIn HackingLeave a comment

I recently bought on aliexpress a powerful (and cheap) microscope. For 15 bucks however, the feature set is quite limited and it has no autofocus, meaning the body needs to be moved to put things in focus. As the official support has 2 ball joints, it's almost impossible to be accurate : when moving focus, …

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Box for GoPro batteries

On July 11, 2016October 10, 2018 By Florent RevelutIn Hacking1 Comment

  I recently bought a GoPro and wanted to make a box to store the batteries. To be clear, my model is Hero 4 Silver and is using these (AHDBT-401) batteries. It's easy to find the electrical properties (3.8V DC, 1160mAh, 4.4Wh), not so easy to find the physical size. Here is a quick overview of the key …

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Screen/laptop holder

On November 23, 2015October 10, 2018 By Florent RevelutIn HackingLeave a comment

Until recently, main screen was resting on thick book to be slightly higher and end up in front of my eyes. As part of a revamp of my setup, I decided it was time for an upgrade. I had some specific needs: my screen needed to be roughly 10cm higher than desk I have a …

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Designing gears with inkscape

On July 15, 2015October 10, 2018 By Florent RevelutIn HackingLeave a comment

For a hush hush project, I need to use gears and I plan on designing and laser printing them. Theory I found this old article which explains a lot on how to make gears with (older) inkscape. It relies on the following technical reference. With new version 0.91, things have been a bit simpler. Unit can …

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Piggy bank for kids

On June 4, 2015October 10, 2018 By Florent RevelutIn Hacking4 Comments

My kids are old enough to have their first coins and they were begging for a piggybank to stash their valuables. I had the idea to build them an actual treasure chest, out of plywood. The final design is available on thingiverse, this post will focus  on how to design and build it. Design I used …

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Recent Posts

  • Cool Stuff Friday July 30, 2019
  • Cool stuff Friday July 19, 2019
  • Crypto and kids January 21, 2019
  • From a cheap crate to a treasure chest December 20, 2018
  • A nice plane story December 3, 2018
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