Category Archives: tools

Precision DIY Calipers? That’s a Moiré!

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Moiré patterns are a thing of art, physics, and now tool design! [Julldozer] from Mojoptix creatively uses a moiré pattern to achieve a 0.05 mm precision goal for his custom designed 3D printed calipers. His calipers are designed to validate a 3D print against the original 3D model. When choosing which calipers are best for a job, he points out two critical features to measure them up against, accuracy and precision which he explains the definition of in his informative video. The accuracy and precision values he sets as constraints for his own design are 0.5 mm and 0.05 mm …read more

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Precision DIY Calipers? That’s a Moiré!

Posted on by

Moiré patterns are a thing of art, physics, and now tool design! [Julldozer] from Mojoptix creatively uses a moiré pattern to achieve a 0.05 mm precision goal for his custom designed 3D printed calipers. His calipers are designed to validate a 3D print against the original 3D model. When choosing which calipers are best for a job, he points out two critical features to measure them up against, accuracy and precision which he explains the definition of in his informative video. The accuracy and precision values he sets as constraints for his own design are 0.5 mm and 0.05 mm …read more

Continue reading Precision DIY Calipers? That’s a Moiré!→

The Analytic Staircase for Auditors

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Building a successful audit analytics program is like climbing a staircase. The staircase is a set of steps that consist of several items having increasing levels of maturity. The staircase steps not only help you build your program, but enable …… Continue reading The Analytic Staircase for Auditors→

ReelPhish: A Real-Time Two-Factor Phishing Tool

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Social Engineering and Two-Factor Authentication
Social engineering campaigns are a constant threat to businesses
because they target the weakest chain in security: people. A typical
attack would capture a victim’s username and password and s… Continue reading ReelPhish: A Real-Time Two-Factor Phishing Tool→

3D Printering: Printing Sticks for a PLA Hot Glue Gun

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When is a hot glue stick not a hot glue stick? When it’s PLA, of course! A glue gun that dispenses molten PLA instead of hot glue turned out to be a handy tool for joining 3D-printed objects together, once I had figured out how to print my own “glue” sticks out of PLA. The result is a bit like a plus-sized 3D-printing pen, but much simpler and capable of much heavier extrusion. But it wasn’t quite as simple as shoving scrap PLA into a hot glue gun and mashing the trigger; a few glitches needed to be ironed out. …read more

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Twitter Celebration of Scientist Hacks For Lab And Field

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If you like reading about scientists creatively using household objects for their work, you will enjoy browsing Twitter hashtag #reviewforscience where scientists are sharing stories of repurposing everyday things for their lab and field.

Research papers focus on the scientific hypothesis and the results of testing it. It is very common for such papers to leave out details of tools and techniques as irrelevant. (A solid scientific conclusion should be reproducible no matter what tools and techniques are used.) This sadly meant much of scientists’ ingenuity never see light.

We can thank Amazon user [John Birch] for this event. His …read more

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Ancient Insect Scales Analyzed With Help Of Nose Hair

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Scientists working to advance the frontier of knowledge frequently also need to invent their tools along the way. Sometimes these are interesting little hacks to get a job done. Recently some researchers found ancestors of moths and butterflies older than any previously known by analyzing tiny scales found alongside ancient pollen. They needed a tool to manipulate these scales: separating them from surrounding debris, transferring them to microscope slides. The special tool was a needle tipped with a single human nostril hair.

As ancient insects were the published paper‘s focus, their use of nose hair tipped needle was only given …read more

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Schneider Electric: Trisis leveraged zero-day flaw, used a RAT

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Multinational energy technology company Schneider Electric revealed new details Thursday about a historic breach where hackers were able to halt operations at an energy plant in the Middle East by deploying highly sophisticated malware. The latest revelations, which were publicly announced at an industrial control systems cybersecurity conference, show that Trisis leveraged a zero-day vulnerability in Schneider Electric’s Triconex Tricon safety-controller firmware. The vulnerability allowed for privilege escalation, which would allow hackers to manipulate emergency shutdown systems during a targeted attack. In addition, there was a remote access trojan (RAT) within Trisis, providing attackers with a wide array of options, including the ability to turn off industrial equipment or sabotage the safety controllers in order to create unsafe conditions. The RAT is the first designed to specifically impact safety-instrumented systems, allowing for someone to access the highest privileges available on a targeted machine. In this case, the RAT was injected directly into […]

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