alnwlsn

8 ms·

121.
by alnwlsn 6mo ago
G0 X4.000 Y1.250 G1 Z-4.000 F100 G0 Z0.250 Here is some g-code to drill a hole. It could be drilling out a gun barrel. How can you tell?
122.
by alnwlsn 6mo ago
This was not understood to be so at the time, and the resulting court case was THE precedent that says that it is. Franklin even won the initial case. https://en.wikipedia.org/wiki/Apple_Computer,_Inc._v._Frankl... .
123.
by alnwlsn 6mo ago
I also learned programming on QBASIC around the same time frame, but in my case it was mostly because all the old 90's computers were getting thrown away at that time, so there were plenty of parts around for a kid to learn about compu
124.
by alnwlsn 6mo ago
I have both, and a manual lathe and mill, and a laser cutter. 95% of everything I do is with the 3D printers. There is no indexing, no work holding, no dealing with shavings or smoke or dust or cutting oil that gets everywhere, no accidenta
125.
by alnwlsn 7mo ago
They make industrial versions of the same specifically for concrete. https://www.amazon.com/s?k=concrete+vibrator
126.
by alnwlsn 7mo ago
If you ever want more phone lines than that, you can pick up an old Cisco VG-224 from Ebay for less than half the price of that line simulator, and you get 24 lines. There is a configuration that will let you use it as a standalone unit whe
127.
by alnwlsn 7mo ago
As seen on Curious Marc, where some real AGC core rope ROMs are read: https://www.youtube.com/watch?v=hckwxq8rnr0 They even have to work around some design mistakes made in the modules in order to read them correctly. Not m
128.
by alnwlsn 7mo ago
A lively Hackaday discussion from yesterday on this very topic: https://hackaday.com/2026/03/31/solar-balconies-take-europe-...
129.
by alnwlsn 7mo ago
This can be done at home with a little effort. Less effort if you can get dry ice easily. https://hackaday.com/2019/01/13/see-the-radioactive-world-wi...
130.
by alnwlsn 7mo ago
I think most GUI CADs have some kind of API like this. In FreeCAD it's Python. In Solidworks, it's VBA or C#. I don't think any are particularly well documented or supported by tutorials.
131.
by alnwlsn 7mo ago
I cannot take anyone making this argument seriously unless they are similarly furious at the expenditure on arts, humanities, historical preservation, luxury goods, entertainment, or other similar vanity projects. Why is is that science and
132.
by alnwlsn 7mo ago
Not necessary, you can just take an additional CRT and wire it in parallel to one of the Williams tube CRTs to see what's on the screen. That's how the Manchester Baby did it (visible in the center of the image here): https:&#x2F
133.
by alnwlsn 7mo ago
The (incorrect) claim is indeed made in every single metric vs "imperial" comments section I've come across.
134.
by alnwlsn 7mo ago
I discovered that one day when I accidentally stepped on a removed 2.5" platter in bare feet :)
135.
by alnwlsn 7mo ago
You would never suspect they once made some of the world's finest test/scientific equipment.
136.
by alnwlsn 7mo ago
When I got into retrocomputing a few years ago, I also did this. Works great with TRS-80 semigraphic characters. First, I wrote it in C with a Z80 c compiler. The, I wrote it again in assembly and it was much faster! Amazing!
137.
by alnwlsn 7mo ago
Wow, in switches alone this would cost me $1200! Which actually isn't that bad for a one off-like this with easily available components - I've seen worse. You can of course take your chances with Aliexpress Specials but be warned:
138.
by alnwlsn 7mo ago
You have to be a little mad to do this but exceptionally mad to do it on at least 8 independent breadboards using no less than 4 different styles of jumper wire!
139.
by alnwlsn 7mo ago
I saw a meme one time that went something like this: "AI is so cool, I asked ChatGPT to combine a card game with a flight simulator and it did it!" "Yeah, that is pretty cool I guess." "My question for you is, what
140.
by alnwlsn 7mo ago
I don't think it's smaller, but you can also drop the USB connector and just order the right thickness of PCB: https://github.com/AnasMalas/pcb-edge-usb-c
141.
by alnwlsn 7mo ago
OP says powered off.
142.
by alnwlsn 8mo ago
All in good fun of course, it has to be healthier than watching Youtube just sitting around normally.
143.
by alnwlsn 8mo ago
I'm as curious as you to be honest - putting a strain gauge on the pedals for measuring mechanical power has been on my list for quite a while. My own (probably inaccurate) measurements right after the generator says I can get 60-70Wh
144.
by alnwlsn 8mo ago
Kind of, it's in bits and pieces here: https://hackaday.io/project/191731-practical-power-cycling and is also a few years out of date. I did do a video back then going against the infamous "bicycle toaster ch
145.
by alnwlsn 8mo ago
I attached a generator with some supercaps and an inverter to a stationary bicycle a few years ago, and even though I mostly use it as a way to feel less guilty watching Youtube videos, it does give me a quite literal feel for some of the i
146.
by alnwlsn 8mo ago
At least you are supposed to be allowed to transmit on AM (and FM) bands at very low power, at least under FCC rules. That's how they can sell those adapters for car radios. Some other ones you definitely are not supposed to use as f
147.
by alnwlsn 8mo ago
In some ways it's never been easier to get all the equipment you will need. But if you're wanting to make ones even half as good as the ones on this page, you'd probably want to become a skilled glassblower and outfit a lab t
148.
by alnwlsn 8mo ago
For 2D, sometimes I find it nearly easier to write the gcode by hand (or make a python program that writes the gcode for you). It really isn't as complicated as it sounds, especially if you can tolerate doing 3D in openSCAD.
149.
by alnwlsn 8mo ago
I happen to be working on an RP2350 TRS-80 emulator, and I've been using this one [0] as the z80 core (because I figured this had been done enough times and why reinvent the wheel?). Looking at the two z80.c side by side, it definitely
150.
by alnwlsn 8mo ago
That light was a big deal - I remember when I got into Arduino years ago this was one of the common projects people would do to add a breathing LED to everything, including a pumpkin: https://www.evilmadscientist.com/2010&#x

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