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Author Archives: Al Williams

AI Creates Your Spreadsheets, Sometimes

Posted on August 9, 2022 by Al Williams

We’ve been interested in looking at how AI can process things other than silly images. That’s why the “Free AI Bot that Generates the Excel Formula for Any Problem” caught …read more Continue reading AI Creates Your Spreadsheets, Sometimes→

Posted in ai, Artificial Intelligence, Excel, Featured, gpt-3, Original Art, Rant, rants

Real Robot One is… Real

Posted on August 8, 2022 by Al Williams

Most of the robot arms we see are cool but little more than toys. Usually, they use RC servos to do motion and that’s great for making some basic motion, …read more Continue reading Real Robot One is… Real→

Posted in robot, robot arm, Robotics, robots hacks

Homemade CAT Scan Shouldn’t Scan Cats

Posted on August 7, 2022 by Al Williams

[Pyrotechnical] thought about buying a CAT scanner and found out they cost millions of dollars. So he decided to build one for about $200 using a salvage X-ray tube and …read more Continue reading Homemade CAT Scan Shouldn’t Scan Cats→

Posted in CAT scan, misc hacks, xray | Tagged CT scan, X-ray

Want Faster Extrusion but Don’t Have a Volcano? Nuts!

Posted on August 7, 2022 by Al Williams

A lot of people want to print faster. Maybe they don’t like to wait, or they need to print a lot of things. Maybe it is just human nature to …read more Continue reading Want Faster Extrusion but Don’t Have a Volcano? Nuts!→

Posted in 3d Printer hacks, 3D Printing, melt zone, volcano hotend

Laptoppin’ Like 1975

Posted on August 7, 2022 by Al Williams

When we first saw the PZ1 laptop — a 6502 laptop-style computer with a small display and 512K of RAM — we couldn’t help but think of the old AIM …read more Continue reading Laptoppin’ Like 1975→

Posted in 6502, laptop, retrocomputing

Compare PDFs Visually

Posted on August 7, 2022 by Al Williams

Sometimes a problem seems hard, but the right insight can make it easy. If you were asked to write a program to compare two PDF files and show the differences, …read more Continue reading Compare PDFs Visually→

Posted in linux, linux hacks, PDF

Everything You Wanted to Know about SDRAM Timing But Were Afraid to Ask

Posted on August 6, 2022 by Al Williams

One of the problems with being engaged in our hobby or profession is that people assume if you can build a computer out of chips, you must know all the …read more Continue reading Everything You Wanted to Know about SDRAM Timing But Were Afraid to Ask→

Posted in DDR4, News, sdram

Lawnmower Doesn’t Need a Base Station

Posted on August 5, 2022 by Al Williams

A recent tour of an old WWII-era aircraft carrier reminded us how hard navigation was before the advent of GPS. It used to be the work of skilled people to …read more Continue reading Lawnmower Doesn’t Need a Base Station→

Posted in DWM1000, GPS, gps hacks, lawnmower, mower, robots hacks, UWB

30 Free Circuit Simulators Lightly Reviewed

Posted on August 4, 2022 by Al Williams

We live in a time where great software is available with the click of a mouse, often for free or — at least — low cost. But there’s a problem: …read more Continue reading 30 Free Circuit Simulators Lightly Reviewed→

Posted in simulation, software hacks, spice

Liberated E-Ink Shelf Labels Turned 10×2 Display

Posted on August 4, 2022 by Al Williams

How expensive is it to make a panel that uses e-ink technology? That might depend on how flexible you are. [RBarron] read about reverse engineering point-of-sale shelf labels and found …read more Continue reading Liberated E-Ink Shelf Labels Turned 10×2 Display→

Posted in e ink, eink, Electronic shelf label, wireless hacks

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