This started happening after I upgraded my ender 5 to ezBoard V2

Today we're ecstatic to publish our first demo showing a homemade BusKill Cable (in the prototype 3D-printed case) triggering a lockscreen.

Watch the 3D-Printed USB Dead Man Switch (Prototype Demo) for more info youtube.com/v/vFTQatw94VU

via @Goldfishlaser@lemmy.ml

In our last update, I showed a video demo where I successfully triggered a lockscreen using a BusKill prototype without the 3D-printed body for the case and N35 disc magnets. I realized that the N35 disc magnets were not strong enough. In this update, I show a demo with the prototype built inside a 3D-printed case and with (stronger) N42 and N52 cube magnets.

What is BusKill?

BusKill is a laptop kill-cord. It's a USB cable with a magnetic breakaway that you attach to your body and connect to your computer.

Watch the BusKill Explainer Video for more info youtube.com/v/qPwyoD_cQR4

If the connection between you to your computer is severed, then your device will lock, shutdown, or shred its encryption keys -- thus keeping your encrypted data safe from thieves that steal your device.

Why?

While we do what we can to allow at-risk folks to purchase BusKill cables anonymously, there is always the risk of interdiction.

We don't consider hologram stickers or tamper-evident tape/crisps/glitter to be sufficient solutions to supply-chain security. Rather, the solution to these attacks is to build open-source, easily inspectable hardware whose integrity can be validated without damaging the device and without sophisticated technology.

Actually, the best way to confirm the integrity of your hardware is to build it yourself. Fortunately, BusKill doesn't have any circuit boards, microcontrollers, or silicon; it's trivial to print your own BusKill cable -- which is essentially a USB extension cable with a magnetic breakaway in the middle

Mitigating interdiction via 3D printing is one of many reasons that Melanie Allen has been diligently working on prototyping a 3D-printable BusKill cable this year. In this article, we hope to showcase her progress and provide you with some OpenSCAD and .stl files you can use to build your own version of the prototype, if you want to help us test and improve the design.

Print BusKill

If you'd like to reproduce our experiment and print your own BusKill cable prototype, you can download the stl files and read our instructions here:

• buskill.in/3d-print-2024-05

Iterate with us!

If you have access to a 3D Printer, you have basic EE experience, or you'd like to help us test our 3D printable BusKill prototype, please let us know. The whole is greater than the sum of its parts, and we're eager to finish-off this 3D printable BusKill prototype to help make this security-critical tool accessible to more people world-wide!

First time I printed something made in FreeCAD. It's a table lamp for our balcony, more like a mood light than a real lamp hehe. Its made from 3 parts (base, tube and a hat). Base and tube are CA glued and I used some insulating tape to fit a hat tightly. The lamp is about 240 mm tall and its powered from 9V battery. Battery case and steel weight are glued with some blue tack (white tack lol) to hold it in the place. There are 2 LEDs and resistor soldered together in series. I might replace the leds with lower powered ones if battery goes out too fast, but time will tell. Im also thinking about different hats, but first iteration was quick and dirty, I love it!

More pics:

On the bottom of my prints, there's an area of underextrusion and I can't figure out what's causing it.

I first noticed it when I switched back to a textured PEI bed while trying to print ASA. It's on 20x20mm squares, and it's on the test print for setting up pressure advance... But only on the left-most object.

It's the same even if I add 2 lines of skirt or not. (In addition to my KAMP Voron purge.)

It happens everywhere on the bed that I've tested. It happens to PLA, but it harder to see. For ASA, it's very obvious. For PLA, it's almost as smooth as the rest of the surface, but it's there if you know what you're looking for.

I've only been printing PLA for quite a while now, so I don't know when this started.

I've got an LDO Voron 2.4 with Tap, KAMP, Revo hot end. I've calibrated pressure advanced and changed the value, and I've tried different z offsets with the textured bed, which doesn't change it. (But does change how good the rest of the bottom surface looks.)

Anyone got any ideas?

https://imgur.com/a/ggaZDMY

I hate registering to websites. Especially when it's just to download FOSS.

It looks like there's no way to download Ondsel without registering?

I was printing PLA, it looks ok up to a certain height (although it was warping slightly), but then it becomes ugly. I will do a test print of the same height, butaybe you already have an idea.

3D prints still suffer from bad layer adhesion due to their 2.5D slicing and printing approach. I investigated if a novel slicing method that interleaves the layer could improve the strength of 3D prints.

cross-posted from: https://ttrpg.network/post/4222671

Want a 3D printer in New York? Get ready for fingerprinting and a 15 day wait

Assembly Bill A8132 has been assigned a "Same As" bill in the Senate: S8586 [NYSenate.gov] [A8132 - 2023]

I don't own a gun, I never have and I don't plan to at any time in the future. But if these pass in the NYS Senate and Congress, it would be required to submit fingerprints for a background check then wait 15 days, before you could own any "COMPUTER OR COMPUTER-DRIVEN MACHINE OR DEVICE CAPABLE OF PRODUCING A THREE-DIMENSIONAL OBJECT FROM A DIGITAL MODEL."

This isn't even going to stop any crimes from happening, for pity sakes regular guns end up in criminal charges all the time, regardless of background check laws. How about some real change and effective measures, rather then virtue-signaling and theater illusion for a constituency?

Assembly Bill A8132 has been assigned a "Same As" bill in the Senate: S8586 [NYSenate.gov] [A8132 - 2023]

I don't own a gun, I never have and I don't plan to at any time in the future. But if these pass in the NYS Senate and Congress, it would be required to submit fingerprints for a background check then wait 15 days, before you could own any "COMPUTER OR COMPUTER-DRIVEN MACHINE OR DEVICE CAPABLE OF PRODUCING A THREE-DIMENSIONAL OBJECT FROM A DIGITAL MODEL."

This isn't even going to stop any crimes from happening, for pity sakes regular guns end up in criminal charges all the time, regardless of background check laws. How about some real change and effective measures, rather then virtue-signaling and theater illusion for a constituency?

What's the maximum layer height I can achieve on a consumer 3D Printer?

I'm using a bambulab a1 mini more specifically but I'm interested in all answers to that question.

Personally, I think the look of the extrusion can be quite nice if it's not trying to be hidden – especially with transparent PETG or something similar.

I posted here a while back when my glass bed failed. One of the suggestions was to replace with Garolite or G10. My sheet finally arrived and i set about cutting it down to size.

...

Within 4cm, my basically unused jigsaw blade was worn flat, and by the end of the first cut (20cm), there is basically no more teeth.

For the second side, I tried using a multitool cutter, and within a few millimeters it was visibly blunt (plastic and metal tools). Finished it off with a standard wood hand saw, which seemed to go better.

So warning to anyone considering garolite, dont use power tools, it will fuck them up.

Awesome to see that Bambu and the X1 Plus devs are talking.

You can see where around corners and even some straight runs it is peeling up. I'm running first layer at an agonizing 15 mm/s. Using hatchbox pla filament, just dried in dehydrator. 200° nozzle and 70° bed. The glass is freshly cleaned with soap and water, I just did several atomic pulls, I've trammed at different heights using a feeler gauge, and absolutely nothing is working. Any one have any ideas?

This is a pretty neat tour of Prusa's printer factory on the Strange Parts channel

They have an absolutely massive 600 printer farm, with the same mk3 and mk4 machines that they sell to customers, which is really impressive.

They do almost everything in-house, including manufacturing the printer mainboards, for faster project planning and turnaround times.

Note - the video is pretty long at about 40 mins!

After watching I'm a little tempted to pick up some prusament filament to support the company, really like how they are supporting local talent.

I've wanted one of these for a while, decided to bite the bullet a couple days ago! Seeing as I was somewhat familiar with CAD software (from engineering classes several years ago) it seemed fairly straightforward.

As someone completely new to this, there have been a TON of things I've learned from binging 3d printing channels...

• First layer adhesion 😭
• Bed levelling
• Types of extruders (bowden/direct) and how they affect what materials you can print
• Tons of printing materials, personally will be using PETG and PLA
• Keeping filament dry in a vacuum bag

And soo much more - but there is still a lot that I have absolutely no idea about.

The printer is a second-hand Flsun Q5, the seller sent it fully assembled (very, very brave of them, but it arrived unharmed). I had a brief look around at other options, but for the price of an easythreed, this was a no brainer.

I think the seller had some issues with bed adhesion, as there was a ton of slimy stuff on the print bed when it arrived. Used some isopropyl alcohol and a dish sponge to scrub it off, seems all fine now!

I had some issues with the Z-offset but got it good enough to where there is some first layer adhesion.

Model finished printing while I was drafting this post, I sprayed some contact cleaner onto the glass bed to take it off (is that bad?). There's some stringing:

I forgot to put back the metal plate on my Anycubic Kobra 2 and pressed print. Managed to stop it relatively quickly but still damaged the heating surface a bit and it chipped away some of the material as you can see. How fucked am I?

I created this clip for my local makerspace, because I didn't find one that suited all our needs. Therefore it's already tried and tested by tens of people.

Why use this one?

• Clip based on popular and reliable Grandma's Favorite Filament Clip by Extrutium
• See what filament you're using
• Leave the clip on while printing - no more lost clips

https://www.printables.com/de/model/688659-leave-on-clip-tag-based-on-grandmas-favorite-filam

https://thangs.com/mythangs/file/976790

Here's a small update to my bento box building log.

This is a small air scrubber meant to cut down on some of the VOCs that come with melting plastics such as ABS.

I've printed all of the bits in ABS and they fit together well. Now I need to order some fans, filters, carbon pellets, magnets, and fasteners to get everything situated.

I got a P1S for my family as an early Christmas present. I'm interested in creating parts that may eventually be used in cars, so I'm trying to get things ready for full-time ABS and ASA production.

This is my 4th print using ABS. First time was an okay benchy which needed some flow calibration and displayed some slight bowing at the base. Second time was a good benchy which seemed dialed in. Third print was an articulated Onyx Pokemon which seemed great.

I've printed the main body for the bento box in 3DF transparent black ABS.

Some of my tweaked settings for success were:

• Blanket over the printer. This is in my garage and temperatures dip. The blanket helped with the warping.
• Setting the bed temp to 100C and setting the level to around 40mm down from the top with the chamber fan at 30%. Did this for around 15 minutes to get everything inside up to temperature.
• Nozzle temp first layer of 260C
• Nozzle temp other layers of 270C
• Bed temp constant 100C

I plan on printing the other components and sourcing the parts spread out across December, so I'll post updates!

Hey, this is my first Printables contest entry - large (16 inch/40 cm) christmas balls that print in multiple pieces. They can be assembled is hollow frameworks, or around a playground ball for extra color.

Hello! I am a former anycubic mega s victim, got it gifted by a friend(because he didn't use it) and got sucked into the rabbithole of 3d printing. Printed a few parts after calibrating and cleaning it up, but then got punched in the face with onslaught of problems that dont make sense. Tried to fix 'em all, but in result just didn't get to print anything for long. Now it shortcircuits itself when it starts up. So gonna salvage the thing for what I can.

In the meanwhile, I want to find a machines to look at that will increase my skills and knowledge further, not to just shortcut to just print stuff. Having available database of known problems will help a lot, that was the main issue I had with the mega S. Also something not expensive like the prusa mk4.(less than 400$ probably) Any recommendations for such a machine?

Sorry for such a question, if there are treads on reddit or lemmy, send me links to them, I will be happy to read them!

The legs broke as always but now I just glue the pieces in and it's fine!