3DPrinting p1mrx • 7 months ago • 100%

www.thingiverse.com

In other news, if you try to upload a file named `uncalibrated_example.stl` to Thingiverse, it fails with no error message, because somewhere they have a pr0n filter searching for rated\*x. Some people might find this [bundle_scad.py](https://github.com/pmarks-net/everclamp/blob/main/bundle_scad/bundle_scad.py) code useful. It combines an STL, SCAD, and all its dependencies into a single file.

Electric Vehicles p1mrx • 7 months ago • 100%

I have one of these J3400 to J1772 adapters so I can connect my Hyundai to a Tesla destination charger. They'll probably get more popular as J3400 becomes the primary standard:  I'm curious what would actually happen if someone were to use such an adapter with a J3400 DC fast charger. I know it can't possibly work because the DC charging pins are connected to the vehicle's AC pins, but is there something in the J3400 standard to notice and reject such an adapter before DC voltage is applied? I'm not sure if J1772 vs. CCS1 adapters contain anything that the signalling protocol could use to identify which is which. If the DC charger were required to passively measure the battery voltage before sending any power, that would probably avoid the "magic smoke" problem, but does the standard guarantee that this will happen?

3DPrinting p1mrx • 7 months ago • 96%

www.thingiverse.com

I designed this wonky-looking funnel to fit my Squirrel Buster Legacy (and probably similar models), with hooks and posts that make it possible to refill the feeder without setting any parts on the ground. This design of feeder needs to be located away from surfaces that a squirrel could stand on, so I assume a lot of people run into this problem. I don't really blame the company for making it so cumbersome to operate, because there's overlap between the smartest squirrels and the dumbest humans. 

3DPrinting p1mrx • 7 months ago • 93%

I think I found a counterexample to the common wisdom that more walls always create a stronger part. The pictured S shape is 1.5mm thick, so printing with 2 walls leaves no room for infill. My testing wasn't very rigorous, but it seems that the hybrid structure of walls + rectilinear infill is 10-20% more rigid than walls alone. The infill adds strength by cris-crossing between adjacent layers. I think it's fine to include a concentric top/bottom layer, but multiple identical layers weaken the part. I also tried 0 walls (infill only) and that was garbage.

3DPrinting p1mrx • 7 months ago • 100%

www.thingiverse.com

 

xkcd p1mrx • 8 months ago • 99%

https://xkcd.com/2888 Alt text: > Subway refuses to answer my questions about whether it's an International Footlong or a US Survey Footlong. A milligram of sandwich is at stake!

USB-C hardware p1mrx • 8 months ago • 75%

I've been relatively happy with this USB-C powered soap dispenser that I found on AliExpress for about $15. It doesn't have a brand name so it's best to recognize it by appearance:   The tank is 400 mL, and it's available in gel, spray, or foam. Gel makes the most sense because it works with generic hand soap. I bought the first one around 10 months ago for my kitchen, and use it several times per week. Later got 2 more for my bathrooms. I'm impressed by the standby time, as the first charge lasted about 6 months, and it's yet to need a second charge. The motor sounds sluggish when it's about to die, but eventually it stops functioning and blinks the LEDs instead, so it seems to have working overdischarge protection. It supports USB C-to-C charging at 5 volts. The biggest disadvantage is that there's no way to open it nondestructively for inspection or repair, so I don't know what kind of battery it uses. Recharging consumed 2641 mWh according to my USB-C power meter. The first unit has developed a minor problem where it pumps a bit of air before soap comes out, so I had to compensate by raising the duration from 2 clicks to 3 clicks. The duration scale seems well-calibrated, as I've never needed to use 1 or 4. There are several other USB-C soap dispensers available online, so leave a comment if you've tested one.

I just did a 5 km run at -5°C, and this worked pretty well. Previously with the unmodified neck tube, my glasses fogged up and I couldn't get enough air. https://www.thingiverse.com/thing:6438319

ChatGPT p1mrx • 9 months ago • 80%

>Create a series of captivating paragraphs that transport the reader to fantastical worlds and scenarios. Each paragraph should be a rich tapestry of imagery and ideas, exploring themes such as: > > \- An epic expedition into a mysterious, ancient civilization hidden in a lush jungle, revealing lost wisdoms and advanced technologies. > >\- Humanity's interstellar travels in a distant future, discovering a universe teeming with diverse life forms, advanced alien societies, and cosmic wonders. > > Feel free to expand on these themes or introduce new, equally mesmerizing concepts, crafting narratives that blend adventure, discovery, and the marvels of the unknown. You can use this prompt to generate paragraphs that are fun to speak aloud, in order to train/exercise your voice muscles. https://chat.openai.com/share/1a1b44f7-09d2-46fc-b404-842085129f75

Firefox p1mrx • 11 months ago • 93%

Am I the only idiot who keeps doing this? - Looking at a [random image](https://www.motortrend.com/uploads/2023/11/2024-Toyota-IMV-0-JMS-First-Drive-16.png) in Firefox - Click the hamburger menu > Zoom [+] a few times - Click off the menu - Zoom level snaps back to 100% Of course, the problem is that when I "click off the menu", I'm clicking on the image, because it fills most of the screen. If I do the exact same thing in Chrome, the zoom level does not change. If "revert zoom on click" is considered a sensible design choice, then clicking again ought to revert to the zoom level I just chose.

Firefox p1mrx • 11 months ago • 91%

After using Chrome for a decade and switching back to Firefox, one feature I missed was the ability to right-click and **Go to [url]** directly, for any selected text that vaguely resembles a URL. I made [Goto foo](https://github.com/pmarks-net/gotofoo) to approximately replicate Chrome's behavior in Firefox, but it would be nice if no extension were necessary.

Lemmy p1mrx • 1 year ago • 100%

https://www.youtube.com/watch?v=wupToqz1e2g&t=96s That's supposed to link to the middle of a video, but Lemmy messes up the ampersand.

Firefox p1mrx • 1 year ago • 98%

I originally wrote IPvFoo for Chrome in 2011, to observe whether websites are served using IPv4 or IPv6: https://github.com/pmarks-net/ipvfoo/ In 2017, Firefox added initial WebExtensions support, so I dropped the extension on addons\.mozilla.org, technically functional but full of bugs, and hoped for the best. This week, I finally sat down with Firefox and ironed out all the problems: - Added a separate `manifest.json` that uses "scripts", as Firefox Manifest V3 [doesn't support "service_worker"](https://stackoverflow.com/questions/75043889/manifest-v3-background-scripts-service-worker-on-firefox) - Added a button to grant webRequest permissions, as Firefox Manifest V3 [doesn't do this automatically](https://stackoverflow.com/questions/76083327/firefox-extension-manifest-v3-request-permission-to-access-your-data-for-all) - Hacked the popup dialog to avoid [unnecessary scrollbars](https://bugzilla.mozilla.org/show_bug.cgi?id=1395025) - Added an in-RAM hostname-to-IP cache, as Firefox doesn't remember the IP address of [cached requests](https://bugzilla.mozilla.org/show_bug.cgi?id=1395020) - Examined `details.documentUrl` when handling requests from a Service Worker, as Firefox doesn't use `details.initiator` I'm pretty sure that covers everything, so IPvFoo now provides an equivalent user experience on Chrome and Firefox. Enjoy!