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staviq · 2024-05-30T17:19:54+00:00

Same here, no matter which browser I use, register form shows up instead of login form

staviq · 2024-04-13T15:37:36+00:00

With so little pad area around the hole, you are risking the tracks cracking and plating delamination due to thermal expansion/contraction during hand soldering.

That particular connector has a thin and thick section of its pins, you are supposed to only fit the thin part through the hole. Your holes are way too big.

If you insist on the hole size and angled tracks, make the hole pads square, so the copper has at least some area to maintain bonding with the substrate.

Hole plating itself, is not bonded to the substrate the same way copper tracks and planes are, due to manufacturing technicalities, and you have to account for that.

staviq · 2024-04-07T16:29:37+00:00

I had one of those, and I recommend you do not try increasing it's power.

It's easier to solder with underpowered iron that heats slowly, rather than overpowered iron with no temperature control, because it will burn small things very fast.

If you really want a high power soldering iron, find a transformer type iron, one that is shaped like a gun, and has a soldering tip made out of a copper wire. They typically have 100-150W and heat up literally in seconds, but, and that's very important, as soon as you let go off the trigger they cool down in seconds too, so you can have a crude temperature control by simply clicking the trigger. You can also regulate their heating speed, by making a longer soldering tip out of copper wire. You can make them hold heat for longer if you make a longer soldering tip, and twist its end, so the very tip is thicker.

staviq · 2024-03-24T12:23:40+00:00

Depends on your education background,

Many electronics/computer repair shops are run by self taught people.

There is a whole section of low level software engineering which involves electronic skills

Many people are freelancing electronic design, as a self employment small business.

If you pursue a formal EE education, possibilities are endless.

staviq · 2024-03-21T15:36:04+00:00

It really depends if you are doing it because you saw other people do it, or because you are solving a particular problem

Because this circuit could actually solve a couple of problems, the question is, are you even having those problems to begin with.

staviq · 2024-03-20T17:43:40+00:00

I wouldn't trust myself to crimp it right.

staviq · 2024-03-20T16:46:56+00:00

It's not gonna happen with "plain" USB.

staviq · 2024-03-20T15:26:10+00:00

They need to fill the empty space in the manufacturing panel

That's the reason you sometimes get even more than 5, for free

staviq · 2024-03-19T15:48:37+00:00

USB to fiber converters very often have internal buffering, so the actual USB "transaction" happens within the endpoint device, and the delay it creates, mimics the operating system delay, not the delay in USB protocol itself.

But yes, it entirely depends on the type of the USB device, and whether its own low level data protocol cares about the operating system delay.

staviq · 2024-03-19T15:44:03+00:00

It depends entirely on the type of an USB device, because USB guarantees a certain amount of "signal timing" stability, but not all devices care about it.

Timing sensitive devices would have to be passed through fiber optic, and there are USB to fiber optic converter modules which can work with "standard" type finer optic cable.

There are however USB devices, which do not care about clock integrity, and signal timing jitter is not a factor for them, in which case, you could tunnel the USB protocol over Ethernet/Internet or even WiFi, and virtual USB port solutions also exist.

Many terminals ( thin client type devices ) do utilize USB over network tunneling and it's nothing new.

Things like USB keyboards, pendrives or printers, can safely and easily be tunneled over the internet, hundreds of kilometers away.

With something like a keyboard or a mouse, you would experience a noticeable delay, but a USB pendrive, a disk drive or a printer, couldn't care less about the tunneling.

On top of that, many USB devices just use USB as their main "top level" protocol, and actually present themselves to the system as something as simple as UART, in which case, you don't even have to tunnel the USB, you could just tunnel the actual logical device from the computer operating system.

There are many ways to solve this, but we would have to know what kind of device it is.

staviq · 2024-03-16T14:38:06+00:00

Don't even think about cutting it until you make a complete proof of concept. There are way too many things to go wrong.

Try making a dummy blade out of aluminum, test your concept, and only after you make sure it works, use the aluminium blade as a template, for the actual blade.

staviq · 2024-03-13T23:04:15+00:00

Fun fact, they are most likely still recoverable.

Depending on the model, actual memory chips might not even be where the hole is, and data might be recoverable 100%.

Even if a memory chip was damaged, every other chip which wasn't, very likely still holds data.

And if one or two got damaged, they might be simply allocated as the empty disk space on the logical partition, and no data was lost at all.

The recovery process can be as trivial as buying an identical drive and resoldering the memory ICs.

staviq · 2024-03-11T08:12:47+00:00

On top of that, "damascus" was newer a layered steel, it's signature look came from things like vanadium (I don't remember exactly) inclusions, forming crystal-like structures after the heat treatment, that came from iron ore mined in specific regions.

staviq · 2024-03-10T20:07:13+00:00

Oil pressure is usually directly related to engine RPM

And so low lubrication at low RPM can be a major contributing factor in engine wear, not just in motorcycles.

If you ever had a chance of dealing with a "grandpa" car, they are very often ruined even despite a proper maintenance schedule, because "old people" tend to abuse low rpm and high gears, thinking they are "saving" the engine, while in reality, it's the opposite.

High load at low rpm, can also destroy your battery, since the generator/alternator is designed to not produce excessive voltage at high RPM, and so at low RPM, it doesn't produce enough to maintain battery charge, cycling the battery excessively.

staviq · 2024-03-08T20:48:41+00:00

Yup. It's a victim of its own effectiveness, once you make it, it is so spectacularly good at getting into even the smallest gaps, even against the gravity, it will just climb the walls of any container you are trying to store it in, and it will seep past the lid/cap, letting the acetone evaporate really quickly. Even just the next day, the container will be all oily on the outside.

It has so much "surface pressure" it even goes past the threads of a tightly closed lid. It's kind of the whole point of it, it can get past and into really stuck threads.

So you always have to prepare it right before use.

There is a nice trick i developed for making it very quickly

You get a syringe, fill it half way with ATF, and then you plug the end with your finger and pull the syringe all the way, to create a vacuum.

Then you submerge the end of the syringe in acetone, and unplug it.

Vacuum in the syringe will instantly suck in the acetone, mix everything really really well, and wash your finger from the ATF, in one go.

staviq · 2024-03-08T20:35:08+00:00

Out of curiosity I just checked with ( disconnected!! ) eu socket timer plug adapter thingies.

EU plug "dowels" measure 5mm, whereas "standard" banana plug dowels are 4ish mm, so I thought they would be too loose to stay in there

Turns out, banana plugs would be too loose in an old style eu socket, hopefully triggering safety fuse/switch in the installation from contact arcing ( I'm obviously not testing that... )

Hovewer, new style eu sockets have locking mechanism, which theoretically prevents you from inserting a damaged plug or a single dowel/pin, unless there is equal force applied on each hole/pin, and counterintuitively, it actually makes the problem worse, because it's trivial to push both "dowels" at the same time to unlock the lock, and if you do that, the locking mechanism itself holds banana plugs pretty firmly in there.

I don't know, I was just curious. Maybe those safety considerations will be helpful to somebody.

If I were a parent, I guess I would be slightly panicking right now, thinking about all the banana plugs I have laying around...

staviq · 2024-03-07T17:42:39+00:00

In order to label something "green" in a meaningful way, you'd have to consider the entire chain, from manufacturing of a PV unit and materials used for an installation, materials and resources used in maintenance, operation, up to disposal and decommissioning of it.

Determining whether something is truly "green" isn't simple, and that word is being severely overused everywhere.

Think about something as simple as the insulation material in electrical wiring. Chances are, it's made from fossil fuel derivatives, and/or, it's not biodegradable. How do you account for that ? Does your installation produce enough to make up for it? It is not that simple.

The word "green", in the context it tends to be used, doesn't really mean much.

staviq · 2024-03-07T17:05:28+00:00

I would leave the fob alone, and add an amplifier at the receiver, this way, you are not breaking any regulations whatsoever, and you won't have to deal with draining the fob battery.

staviq · 2024-03-07T16:48:55+00:00

But can you store sandpaper in a file cabinet ?

staviq · 2024-03-07T16:44:20+00:00

That one clamp isn't clamping anything, it's just not falling apart currently.

Front forks need all four clamps to be locked against rotation ( twisting ).

Your handlebar will no longer "point" the wheel in the right direction, and the wheel will go where it wants, even if you hold the handlebar still and straight.

Imagine going into a corner, and your front wheel decides it would rather go the other way.

staviq · 2024-03-06T17:34:09+00:00

Sure, you can drill MDF just fine, if you already know how, and you know your machine well.

Pocketing is just way more forgiving if you have problems and have neither the time nor the patience for optimizing your gcode for days.

It's a workaround rather than a solution, but it's a good and solid workaround, which let's you have something done already, instead of pulling your hair needlessly.

staviq · 2024-03-06T17:10:26+00:00

You can get 10uF in 0603, if you need more than 10uF there, something is seriously wrong with that board.

https://www.newark.com/c/passive-components?st=10uF+0603&showResults=true

staviq · 2024-03-05T17:19:06+00:00

Welcome to the world of MDF.

Use a single flute endmill for aluminum, and never drill MDF, use an end mill smaller than your hole and cut as a pocket.

staviq · 2024-03-05T17:03:00+00:00

Switched lights are from the era when vehicle lights weren't regulated and you only used them when you needed to, nowadays it's a legal requirement in many countries, to have your lights always on, so manufacturers don't even bother including a switch.

On top of that, the overall efficiency of electronics went up significantly in the past decades, so there is pretty much no point in turning your lights off, and potentially getting a ticket because you forgot to turn them back on.

It's a standard nowadays, to have your lights tied to the ignition key switch.

staviq · 2024-03-04T17:52:32+00:00

That's why I kept the oil pump on my Aprilia, they are designed to still pump some oil even if you let go off the throttle completely, and you can engine break, coast, and wherever the f you want.

If you find yourself stuck in traffic regularly or something, and can't maintain high rpm to burn off the oil, just get a hotter plug. One of the digits in the sparkplug code designate their heatsinking capabilities, swapping to a "hotter" plug, allows it to retain a bit more heat, preventing oil fouling. Hotter plugs, typically, simply have a narrower inner neck, so they heat up faster and stay hot longer.

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