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Adam McCombs @[email protected]
@nanographs
Find me on 🐘. Low key obsessed with open hardware 4 Electron Microscopes. they/them
Portland, OR
chaos.social/web/@nanograph…
Joined January 2014
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    Adam McCombs @[email protected]
    @nanographs
    Mar 1, 2024
    Introducing the first open source SEM digital image capture solution, the Open Beam Interface! GitHub: github.com/nanographs/Ope… Bring your analog SEM into the digital world, all over one USB type-C connection. Taking orders now for our first batch of 6 boards, DM for details.
    113K
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    Adam McCombs @[email protected]
    @nanographs
    Nov 30, 2018
    So news flash everyone MEMS gyroscopes are amazing. This is a L3GD20HTR from ST Microelectronics that I decaped and imaged under my SEM. It uses the deflection of the suspended silicon to sense roll in all 3 axis, even though the device is mostly 2D in nature.
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    Adam McCombs @[email protected]
    @nanographs
    Dec 25, 2017
    .@AlexDainis My family got me Parafilm for Christmas.
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    Adam McCombs @[email protected]
    @nanographs
    Nov 30, 2018
    These isometric shots of MEMS devices really start to show just how amazing the high aspect ratio process used by device manufacturers are. Also the idea of using silicon as springs and actuators still blows my mind.
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    Adam McCombs @[email protected]
    @nanographs
    Jun 22, 2019
    Portland has concrete diatomes and I am totally here for it.
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    Adam McCombs @[email protected]
    @nanographs
    Oct 27, 2019
    So what do you do when @jeriellsworth's @tiltfive sends you a sample of the retroreflectors they use to make their table top AR system? Of course I stick it in a Focused Ion Beam Microscope to figure out how they are made by slicing them in half with a beam of metal. [Thread]
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    Adam McCombs @[email protected]
    @nanographs
    Nov 6, 2018
    Here is some cool slow motion videoof @SpritesMods hacked inkjet cartridge printing out a Nyan Cat. If you look closely you can see the ink drops in the air. @hackaday #supercon
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    Adam McCombs @[email protected]
    @nanographs
    Aug 21, 2019
    I'm going through and testing optics on my new scopes. They are *so sharp*
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    Adam McCombs @[email protected]
    @nanographs
    Jan 8, 2024
    Open hardware, coming soon to a (electron or other) microscope near you.
    Picture of a rendering of a circuit board that has X and Y scan outpus, and a video input.
    22K
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    Adam McCombs @[email protected]
    @nanographs
    Mar 16, 2024
    Used a sphere of plastic and the Open Beam Interface to capture Electron Microscope selfies on our @JEOLUSA JSM 6400 SEM from the 80s. I charged the sphere with a 20kV beam, then dropped the beam energy to 3kV to bounce the beam off the sphere and image the inside of the SEM.
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    22K
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    Adam McCombs @[email protected]
    @nanographs
    Jun 6, 2019
    Ok what on Earth is going on with the structure of this salt water diatome? I'm amazed at the mechanical complexity especially given that this image is at a mag 3 times that of what an optical microscope could do. Ridiculously impressive. Taken at 35kV @ 4800x mag on my SEM.
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    Adam McCombs @[email protected]
    @nanographs
    May 16, 2018
    Oh my god. Wow. I mean really wow. There's literally an integrated Ash Tray in the console on this old TEM. How was this remotely considered a good idea? And a marketing point at that?
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    Adam McCombs @[email protected]
    @nanographs
    Feb 29, 2024
    Captured some scans under the SEM and FIB of the AMG8833 Grideye 8x8 thermal camera using our Open Beam Interface. The FIB milled out the rectangle, revealing in cross section wires looping around forming a thermistor. Under each pixel is a KOH etched void for thermal isolation.
    30K
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    Adam McCombs @[email protected]
    @nanographs
    Sep 24, 2017
    Ok, so .@adafruit definitely has the best captcha around.