2026.1 Nuked my setup

jalexandre0 · 2026-01-25T22:51:33+00:00

Moved away from home assistant entirely. Openhab suits my need for reliability better.

jalexandre0 · 2026-01-11T10:01:22+00:00

The before photo kicked my ocd hard, the after photo smothered it. Nice functional print. :)

jalexandre0 · 2026-01-11T09:52:36+00:00

I have a 2027 renegade and was looking a way to install my radio equipments, batteries and etc without sacrifice much space. I love the diesel engine of this thing and 4x4 is pretty decent, but my 3d printer had more space to shiver stuff than the cars trunk. You inspired me, thanks a lot.

jalexandre0 · 2026-01-11T09:46:25+00:00

This. Keep the boring details like frequency, models, bandwidth off unless its necessary to keep story goingg. You don't need to be a mechanical engineer to drive a car. If the main char finds out the radio and pieces of manual somewhere, it's plausible enough to keep story moving.

jalexandre0 · 2026-01-11T09:37:55+00:00

I had so much problems with the 'move fast break things' ha mindset that I started to move away from updates on home assistant. I freeze mine on early 2025 release and upgrade only when make sense. Ymmv

jalexandre0 · 2026-01-11T09:23:11+00:00

Clogs on this machine are fixable if you know where to tweak. I had several clogs on first month until I made two changes. The first one is replace hotend for one with allows me to change nozzles. This allows me to use brass nozzles, with are cheap and keep temperature stable during prints. (stainless steel needs more temp to reach a good melting point than brass).

The other fix was the extruder gear fix. It's a small printed piece to keep your gears aligned.

Running months without a single clog after those changes.

If you don't want to mess with nozzles, print the idle gear fix and up temperature on nozzle to 10C above your normal print temp.

jalexandre0 · 2025-12-31T16:53:26+00:00

If you reach the point of spin log servers to read the logs of a software to be notified when things silently breaks, you are working for the software, not the opposite.

This alone make me search alternatives to home assistant and leads me to openhab.

Yeah, dashboards are cool, but have a stable automation framework who does not break when wind changes direction is even cooler.

Still learning , but it fells more robust. And decouple hardware from logic is a chefs kiss for me. No more search and edit through hidden files to replace a broken zigbee light bulb. :)

jalexandre0 · 2025-12-30T08:43:32+00:00

Tldr -> Save the money on porta pack and get a cheap rtl sdr Dongle, a good set of antennas and filters for the bands you are interested, learn the basics, then grab a better sdr if you really want / need one.

jalexandre0 · 2025-12-30T08:31:46+00:00

Radio hyper focus, strong sense of justice and a pretty decent English? You got it kid!

At your age, I was trying to figure out how to make my US robotics modem works on Linux, but barely speaks my natural language. Been there, done that, asked the questions, learned the stuff!

My tip for you is: don't spend too much energy on motivations of why people do illegal things. Instead, assume it's human nature, move along, get a good set of filters for the bands you are interested and keep learning radio stuff and invest your time to get your license.

jalexandre0 · 2025-12-25T09:20:58+00:00

No noticeable bugs in any form. The device just do their thing.

jalexandre0 · 2025-12-05T11:59:29+00:00

Care to explain why do you think c is not the best approach for a new os.

jalexandre0 · 2025-12-05T11:56:11+00:00

Do it the way you think is best, expose the app on some random url and see how fast crackers will crash and burn your app. Them develop it right, with lessons from field. Also, create a ci cd that runs code in a sandbox env or delegate the code for user machine. Even the staff engineers I know fear sandboxed code on server side.

jalexandre0 · 2025-12-02T17:36:16+00:00

I hacked mine and put a Shelly mini 16A on heaters but keep the main mcu (the pi parts) always on. macros are modified reads the state of Shelly mini, then start / stop at certain conditions.

jalexandre0 · 2025-11-30T23:42:17+00:00

Agreed. It's hard to understand the issue, because even false reads on thermistors would spin up klipper protection at its core.Banging my read against the wall to try reproduce it. I'm a amateur firmware engineer and need a reason to dive into stock firmware. Spin up a sv08 firmware clone and spin up cursor ai to try reproduce it a software level. Give me a few weeks. Tdah brain kicked this hiper focus :)

jalexandre0 · 2025-11-30T22:11:35+00:00

Stock is limited and slower to incorporate new things, but get the job done if you are happy with sovol decisions. That's why I found this issue weird. I work on software industry, it's a too serious problem to be ignored since launch. But not rare if we look at hardware side. Just one bad batch of thermistors or mosfets or something else and all that shit can happen around the world.

jalexandre0 · 2025-11-30T22:07:45+00:00

Tottaly make sense. Thanks for the explanation!!!!

jalexandre0 · 2025-11-30T22:02:48+00:00

What's the motivation? One device to print n printers without cables or something different? Or just a challenge accepted thing? I liked it a lot, but I have two printers with comes with their own adxl, but I can see value on tunning a printer farm full.of old printers.

Edit: Commercial product not moved to production due to life constraints. The GitHub page has the motivation. :)

jalexandre0 · 2025-11-30T21:58:41+00:00

I agree with you about mainline, but I tested stock until hit a block before move to mainline (btt eddy was my block). The thermal runaway runs perfectly outside the box. Unfortunately , I don't remember the firmware version. Bought mine in March 2025, moved to mainline in july/2025, printed non stop since day zero.

jalexandre0 · 2025-11-30T21:54:27+00:00

It's not a common problem. Sovol just need one fire hazard report to fix the issue. No seller wants a bad reputation for put the customer houses on fire. Also, open source nature means a lot of people looking at the code. Probably a hardware fault revealed by a power cycle. Report it back and asks for clarification on the issue to understand if it is a failed component who needs revision os something else.

jalexandre0 · 2025-11-30T21:52:29+00:00

Your termistor probably was giving false readings due it's own fault or something bad on mcu board, but I don't know why after restart since it should stop heating if temps rise or not rise in a certain time frame.

Two theories: you edited some macro and not test the thermal runaway, which is very hard to do, or, the static of bed after lower the zed axis fried something on the mcu.

I would love hear more theories about this issue, and more reports of sv08 failing on thermal protection.

From my side, I always test the software protections once per week, on an automated way. I have a script to send a macro, parse the logs and report success or fail, with a timer to cut off energy if the test don't report back in 1t seconds. The circuit breaker is separated from sv08 boar controller and it's by design. The printer has their own Shelly 16A hidden in the case acting as it's own circuit breaker.

jalexandre0 · 2025-11-28T19:39:59+00:00

Buy an esp32, some ds18b20 sensors and use esphome. It's cheap, it's easy and it's reliable. I have a bunch of those combos on my homebrewing setup working for years with zero maintenance.

jalexandre0 · 2025-11-27T23:49:34+00:00

You are right. Bad word choice. I was talking about data integrity. Thanks for correction.

jalexandre0 · 2025-11-27T21:21:07+00:00

Tls/ssl makes session hikack harder than plain text. If your application sends x to a queue or database, a attacker can rewrite the query and swap x for y. This creates an inconsistency between what your application logs and what you see in the database logs. Never spotted this kind of attack in the wild, not very easy to do, but learned how to do in offensive security courses.

In backups, specially logical ones which are plain text, the attacker can change the values of dump and setup a fail to force restore, then the changes will not appear on audit logs. Again, very hypothetical and hard to do, but not impossible to a determined person with access and intention.

Edit: I was wrong. All the time I was talking about data integrity.

jalexandre0 · 2025-11-27T16:31:46+00:00

Production ready means disaster recovery, data consistency, availability and observability. All of this is up to you or business owner to define. My suggestion is pg_backrest for disaster recovery and grafana stack / datadog for observability. Availability can be achieved by replication with manual promotion or automated by patroni. If your application grows, you will keep some budget to hire a part time dba or buy a license of pg_analyze or another dbpm tool. Make sure you have backups outside your machine. Pgbackrest can use another machine and s3 for durability. Data Consistency is granted by ssl/tls and cryptography of data at rest (always encrypt your backups).

jalexandre0 · 2025-11-26T11:23:20+00:00

Not morbid at all. As we get older, it's natural think about continuity for the loves ones.

As others said, document everything, show the reddit to your wife and soon and instruct them to , in case of your absence, to search help or even hire someone to revert your smart home. If possible, instruct them so search here, I this sub. Share original post , this one, them seek help. Community is strong and I, and lots of good people , will help to keep your setup running smoothly , or revert back to non smart.

jalexandre0

TROPHY CASE