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Search - "motor"
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The man who runs my IT department. The man who is in charge of all things and people that are technical: IT management software development, infrastructure, training, help desk, system administration, etc. A man with a staff of fifty plus. If you were to peel back the flesh on this man's head and crack open his skull you would find dung beetles feasting on the feces that power his thoughts and motor functions. Underneath this foul membrane, if you could push past the maggots; the meal worms; his undying love for hourly binges of Johnny Walker Black on any day of the week with a name that contains a vowel; his fascination with shiny objects and his endless internal monologue wondering when they would hatch rainbow ponies that fly; his desire whenever he enters a paint store to open all the cans of paint and taste the different colors; if you could push past all of the vile crap that exists where Thomas Aquinas once theorized there was a soul, you would find a colony of paramecia at the end of their short lives laughing hysterically at how much smarter they were than the host they lived in.
This man was in charge of hiring the Manager of Software Development. The manager I report to. After seven months of ignoring this chore; after interviewing the sum total of four candidates; after making a point to tell myself and a colleague that there was no one qualified to fill this position within our company (an opinion that is both untrue and, when spoken, runs afoul of internal hiring policies) this man hired a soulless cretin with no experience in software development or with running a software development group. A man who regularly confuses web servers and SQL servers. A man who asked me how my previous manager reviewed my work, was told by me that said previous manager read my code, and then replied in his capacity as the manager of software development that "looking at code is a compete waste of time for a manager." A man so without any humanity or reason for being that he will sit silently, creepily, in conference rooms with the lights off waiting for meetings to begin. Meetings he has scheduled. That have no reason for being in the first place. Just like himself.
Shortly before the man in charge offered the Dev Manager job to the simulacrum of human flesh that is my manager, he met with me and others who had been involved in the interview process. When I informed him that hiring someone with no technical knowledge for a very technical position would be a mistake that he would suffer through for years, he replied in reference to his future hire that "his managerial experience makes up for his lack of technical knowledge."
Best. Prank. Ever. Worst prank ever too. Fuck.6 -
Yet another rant about crappy electronic designs.
Just now I was cleaning my desk and stumbled upon some old hard drive in a caddy that I still had laying around.. I figured, let's plug it in and see whether the drive still works. And to some extent, it does! Except that every few minutes it craps out on me. And after disassembling the caddy, I think that I know why.
Just as background information, hard drives work at 12V and generally require about 10W to spin their motor. Meanwhile USB operates at 5V. So a boost converter needs to be present in the controller to step up the voltage and power the drive.
Now what's a boost converter? It's an inductor, a capacitor, a transistor and a diode in a specific arrangement (if you're interested in the design, check out https://youtube.com/watch/...), along with feedback circuitry to stabilize output voltage. Now that transistor is important.. it switches at very high frequency, and its rise and fall times create heat. In the particular transistor used in that controller, it apparently causes the transistor to operate at 65-68°C. That's quite toasty IMO, and overheating may be why the controller is so unstable. But the Chinese manufacturers thought that it's just fine and okay to be sold without heatsink or some research into transistors with better rise and fall times.
So the hard drive craps out on me and yet again it's because of certified shitdesigns. MOTHERFUCKTURERS!!!!27 -
There was a guy back at uni who, I'd have to say is just manipulative SOB,
I say this because of two situations:
We started uni, first week of programming homework, I helped him out, second week rolls around and this happens:
SOB: hey can you give me the answers to homework for this week?
Me: no but I can explain my idea process, which I then in painstaking detail, break down everything needed to do the homework, I thought maybe he'd understand the process and get the hang of it, he answers me with this
Me: so now that I explained everything did you understand what to do?
SOB: yeah yeah I do now could you give me the answers
But that ain't the only time, nope, at the same time for another class he was part of our team, where we decided to some ambitious project combining 3d printing + an Arduino to make a turret, needless to say my team mates knew nothing of Arduinos or 3d modelling, I did some 3d modelling in my spare time so I handled that other team mates made the Arduino rotate a motor :/ best they could do, SOB does nothing, assessment days rolls around and lecturer goes around the room we show him the turret, the Arduino and proceed to say SOB has done nothing, never contacted us through the last 6 weeks, despite us trying to do so, he begins to complain saying we lied, lecture takes him out of the room because we were starting to make a scene, and he starts crying! The lecturer gives him a B+!
I then hear him one day joking to this guy that he managed to pass Class A by doing nothing and managed to get a higher grade than the rest of his group, at the time he was copying homework from a person for the first programming class because he failed!
Later I hear in my final year he was hanging out with some first years, a friend of mine sees him and says hi, why you hanging with first years, the group of first years look at him and ask how he knows them, and proceeds to question why they were told he was a first year also...
Not only this but I heard despite failing so many papers (heard he was repeating first programming class 3-4 times) he somehow managed to graduate.... I just can't understand why, oh and he has a job too, managed to get one from a guy he knew working in IT he doesn't deserve his bachelor's degree at all!14 -
!rant
Just finished my CNC.
Lots of problems but it works... More or less.
Need better steppers and other drivers. But I did it, learned a lot, did lots of mistakes, and don't get me started on debugging hardware...
Z axis unfortunaly can't even pull the motor up lol.11 -
Just disassembled 2 €5 desk fans because they were shit.. and so is their design apparently.
What I found inside was actually surprisingly simple.. a toddler could build it. It's just a DC motor, a 3PDT switch, DC barrel connector, some wires and screws to hold stuff in place. Oh and the plastic thingie with the fan blades, as well as the USB cable of course.
5 fucking euros. The combined cost of the components would be less than 3, certified motherfuckturers. Time to build it, injection moulding, transportation, sure.. but still.
And if you think that being salty about €5 is cheap shittalk, expand that to every fucking piece of electronics that doesn't cost a small fortune.. at all price ranges. Could be radios, alarm clocks, heck even phones. Shit's way too expensive for what it's worth. Perhaps because so many people in the industry are just here for a quick buck.. motherfuckers 😒
Anyway, back to the design.. the hole in the fan blade thingie is supposed to get the motor's shaft shafted in, to turn the blades. I'd use glue there.. but not these designers. They just shove it in and hope that friction takes care of everything. And one of the fan blade modules' hole was so wide that inserting the motor is like throwing a sausage down the hallway. No contact at all! Make it tight already like the Chinese designer's glory-...
Nah let's not get into Chinese tightness just yet.
Oh and also a resistor for slow mode. Consumes just as much power except the fan turns slower. Because fuck efficiency, right?
Goddammit, next time I'm just gonna build my own again.. at least that wouldn't be a certified piece of shit 😑7 -
LifeHack #456
Put your Mac Mini on Xiaomi Air Purifier with max speed for motor to prevent overheating.2 -
!rant
Four hours of work.
You think you write spaghetti code? I write spaghetti wires.
H-Bridge dual motor tester for stepper motors.
Speed is controled by pot.
H-bride are L293D.
My third board, and the first that won't go to the trash.
Question. With the baterry off the motor continues spinning with the 5v from arduino.
My question is, is the L293D suposed to do that? Or do I have a short circuit somewhere that is giving power to the motor? Meaning it can burn the arduino.
Runs a 12v stepper from a CD-Rom driver perfectly at 5v from the arduino and actually starts to act strange when I turn the 12v on. (maby the circuit it's adding 12v + 5v?)24 -
Any bikers around here?
I recently bought my first motor bike ( super cheap ) and I'm excited to add some enhancements to it like GPS logging and collect relevant data about my bike.
Have you don't anything similar to your ride? I would like to put my Dev skills and improve my bike as a hobby.17 -
I fucking love HP.
Why, you may ask, given that I've ranted about their crap so many times now? Great question!
I love HP because every time I go to town on their hardware because yet again it got me infuriated somehow, I don't feel bad about it afterwards. Instead I feel oddly satisfied, liberated from another piece of crap from them. And besides, usually it's their or Acer's shitty hardware that gets me worked up anyway.
That said, fuck you HP. Filthy Microsucking pieces of shit.
.. anyway. I've just went around disassembling an old vacuum cleaner this morning, to liberate its 800W single phase AC motor. I'll probably have to underrun it with a step-down transformer but at e.g. 200VAC it should probably work no problem 🙂12 -
"As it turns out, this world isn't all that complicated. It's pretty simple actually. It's all a game, a very simple game. Of course, some will try to make it difficult. But you can handle them, I know it. I know you can!"
There's a lot of truth in that. When you get into the depths of how the world works, things turn out to be pretty simple.
One thing I cannot rationalize though. The human spirit. The desires that it embodies. I've had this question for so long - what makes us humans human?
If for example a future surgeon - able to exchange individual cells between me and you - would do so, at which point do you become me, and the other way around? 50+% exchange? But that'd mean that at least part of me is still "you". In that state, are you truly you?
Not sure what the cellular definition of an individual is, given that we're headed towards a bionic society where synthetic organs will likely become more relevant than the donated parts of me that I've recently applied as a donor for. I wholeheartedly encourage that future, but the philosophical questions that surround it become more relevant.
How about the impact of influencers on the mind? For example, I've seen the term "certified enganeers" become a trend here, which I'm very grateful for. It does raise a question though. If for example I were to die, would the term live on? And if so, is that a part of what makes me "me"? Would a part of me live on in you? Would your spirit be partially me, due to mere influence?
What makes up the human creature anyway? I think of my own body as a mere vessel for my mind, but I can't quite grasp what makes up the mind, and philosophical questions like "if I were to upload my mind to a robot and instruct it to kill me, would that carbon copy become *me*?"
The human nature is such a weird thing.. and technology doesn't make it any simpler. Is it really just a simple game, with simple rules and e.g. a biological program running inside of a biological motor? Or is there more to it?25 -
Re: https://www.devrant.io/rants/304762
Legit had a coworker who blamed almost every "anomaly" on solar flares. Bad phone reception? Solar flare. Hard drive head failure? Solar flare. This same guy claimed to have regrown hair on his balding head with his own creme he concocted. He also had a milk carton of liquid mercury and was convinced he could spin it (mercury) fast enough with a 10,000 rpm hard drive motor and propeller blade to make artificial gravity. Because Earth's core.7 -
Sweet lord jesus I fucking hate React! I hate whatever those idiots at facebook or whoever decided to change how everything works 15 fucking times in the span of 4 versions. For fuck sakes, the errors are shit. The documentation is shit, the answers to questions are useless!
I hate this fucking framework with a burning passion, I want nothing more than to shove the entirety of the populous that developed this garbage up zuckerburgs ass and then drown him in a vat of boiling piss and motor oil.
Fuck react.17 -
Recently I disassembled this Remington beard trimmer that I have, right. Thinking that I probably just depleted the battery or something like that, and that that's why the fucking thing would turn off after 10 seconds, with a miserable motor speed that could only be caused by what.. 2.5V or something like that? So I kept up with it for a while, and then a few days ago, I finally disassembled the fucking thing.
New 4.2V LiPo battery of my own attached, wicked! The thing has a 2Ah capacity and is fully charged, so fuck all in a big ship, I'ma shave my fucking hair without protection, who cares with 2Ah anyway, given that motors at 4.2V consume only 800-ish mA, right. So I shaved my head, and figured.. holy shit mate, I fucking beat this fucking cunt, fuck you Remington! Planned obsolescence my ass!!!
Just now @xewl sent me a request that made me reconsider this shaver. Some PS3 controller, should be easy enough to fix. But I referenced my shaver so I figured that I might actually check it beforehand.
The original fucking battery has 4V left on it. 4 fucking volts! That ain't gonna trip shit for an overdischarge protection circuit!!! WHY THE FUCK REMINGTON, WHY THE FUCK DID IT (IF ANYTHING) TRIP?! And more importantly, why did you make the motor turn for only 10-ish seconds after charging, 1 year after purchase, despite the fucking cell having 4 fucking volts in it, which is more than plenty to get the thing turning for at least a 60% charge?! Planned obsolescence perhaps, hmm?
But let's say that it was bad contacts or something like that. After all, my probing was a bit intermittent, showing 1.5V (if it's shorting, shouldn't it be in the mV range?) and then 4V at times, until I separated the nickel connectors from the 16500 cell. Why the fuck should that thing short, considering that it's unprotected?! The fucking cell is unprotected, and you Remington are going to let it short? What kind of fucking engineering is that, you fucking braindead morons?!!!
And why do you use a 16500 cell which isn't very standard over a 18650 cell, which is? Again, planned obsolescence? Fucking vile pieces of shit.
Now what's more.. I tried to power on the shaver for a picture for this fucking rant, using a LiPo cell of my own that I used to shave my hair with the other day, to get a nice picture of my little hack. But the fucking thing, despite having 3.89V left in it after that fucking shave, which is more than plenty for a lithium cell, the fucking unit doesn't power on. WHAT THE FUCK REMINGTON?!! That's planned obsolescence at its best, init?!! You vile fucking pieces of shit.
So I guess that this rant is no more one of "I beat these Remington cunts". It is one of "you can bet your fucking ass that planned obsolescence is a thing!!"7 -
*The Fearless Leader*
I get a call to check up on a robot that has been exceeding weight limits at certain points of its movement (Crashing). As I get to the pendant (robo-game controller thingy I like to call it) and look over the alerts and warnings I notice some oil around the main power box of the Robot.... Nothing around this has oil.. so I start looking around and it turns out that the issue wasn’t a crash at all! It was an oily shorted out wire that kept sparking mad heavy when that servo was called on.. causing a large servo failure that required a full restart of the power box. I called our fearless leader and showed him only to find out that there was a motor leaking oil from the electrical end... My fearless leader runs both the Maintenance and Robotics department. When the motor was eventually fixed we overheard the technicians say that our fearless leader knew about this a week ago and decided to leave it that way.... with oil... coming out of an electrical cable..... *sigh* well Anyway after all the wires were fixed and motors changed. He comes up to me and says that he can’t believe that I didn’t call maintenance and fill a report on negligence of technicians for failing preventative maintenance....
I lost my cool a little, firstly that’s not my job, I’m literally one of the lowest ranking here. I called my next in command to figure out what I should do. Secondly the technicians told me that you told them to leave it like that! So if this place caught on fire this would have been on you!
Later I found out that he was trying to fire a technician and wanted me to do the dirty work.. I’m not going to be the reason another man loses the means for him to feed his family. The technician is a pretty cool and fair guy too!
Our fearless leader was a forklift driver and has no experience in robotics or maintenance... I don’t know how this happens or even why but all I know is this man is running both departments to the ground and management loves him.....1 -
FUCKKKKKK
FUCKKKKKK
everything mounted, was going to connect Z and motor...
And the fucking X stepper isn't working...
The plastic piece that made the steps is overused and can't handle the weight :(22 -
Hey guys.
Got this motor here... What do you think it's voltage is?
Tryed 12v, didn't even move...14 -
ARE YOU READY FOR WORKPLACE BRAIN SCANNING?
Extracting and using brain data will make workers happier and more productive, backers say
https://spectrum.ieee.org/neurotech...
"What takes much more time are the cognitive and motor processes that occur after the decision making—planning a response (such as saying something or pushing a button) and then executing that response. If you can skip these planning and execution phases and instead use EEG to directly access the output of the brain’s visual processing and decision-making systems, you can perform image-recognition tasks far faster. The user no longer has to actively think: For an expert, just that fleeting first impression is enough for their brain to make an accurate determination of what’s in the image."12 -
Blue Robotics
This company makes underwater thrusters for submarine applications. With their first thruster they made it easy to make a homemade submarine. The motor was powerful, the thruster just worked. They even had a promotional where they created an automated surfboard that made it from hawaii to somewhere in california with one of their thrusters pushing it there the entire way. It was a great product.
Then they created the next version. This was the same thruster, but it had an ESC(Electronic Speed Controller) sealed in an aluminum puck on top of the motor. This ESC could be controlled by servo controls, or by plugging it into an i2c bus. You could pull different stats off of the motor over i2c it sounded great. So my robotics team trusted this company and bought 8 motors at $220 - $250 bucks each. We lightly tested them since we had not even finished the robot yet. One week before the competition our robot got completely put together and we did our first few tests.
Long story short, Us and 22 other teams did roughly the same thing. We bought these motors expecting them to work, but instead the potted aluminum ESCs were found defective. Water somehow got into the completely resin sealed aluminum puck and destroyed the ESC. We didn't qualify that year due to trusting a competition sponsor to deliver a good product. I will admit that it was our fault for not testing them before going to the competition. Lessons were learned and an inherent distrust of every product I come across was developed. -
Fixing the fucking vacuum cleaner, looks like it finally died, dunno how and why, maybe the carbon brushes in the motor are gone or it's just full of dust and crap because noone changes the fucking dust filter... ever!9
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Project: pool cleaner.
Hey guys. So here's the story I mounted my pool one month ago in a very hot day, but the weather is getting freakyer with each year and this was the first sunny day.
But I fill my pool with water from a well. Chlor takes care of bacteria but the damn algy are a problem.
First part: pump the shit out.
First test: not working properly.
- Reason? Buie keeps the dirt from reaching the motor;
- Hazardous: motor must be always under water
- Main problem. Pump is ment to sink in the bottom and pull water out, so only has one exit, the entry goes directly to the engine.
Workable? Turned a snail into fine dust, needs a hose with a buie that goes directly to the motor.
Just having fun... I would be in the pool if I had cleaned it last week2 -
Being awoken at 4am cos Devrant uses the vibration feature and the Motorola nexus 6 vibration motor sounds like a pneumatic drill going off...
Please add a feature in app to turn off vibration. Devs need sleep as well as coffee10 -
The first filamment for my 3D printer had to end at 4h30 in a 5h30 program. FUCKKKKK
Tryed to replace while pausing the printer, but the fucking merlin doesn't reset the extruder stepper motor, so... when I resumed the print it wouldn't extrude filament, because the position of the extruder was wrong....
Well. At least printer time is cheap... I'll just print all the pieces and leave it until tomorow night printing lol3 -
It is 4 am now.
There it is. My obsession to destroy electronical things got me once again lol. I found a Canon printer last month and put it in my room to gather more electronical parts (for future arduino projects).
I am quite impressed about what makes Canon printers so different from Epson printers.
Canon really makes it fucking hard to open the inside of the printer.
Epson printers were way easier to open. A big plus for Epson.
Canon printers have weird design. Everything somehow sticks inside of something else with no room inside the printer. Like spaghetti.
Wherelse Epson printers have a plenty of room inside with a better design. No need to waste alot of time to reverse engineer it (figuring every single cable, motor, and what else not out). A plus for Epson here.
Now... what might have impressed me alot?
Take a look at the attached picture. The power on button(design), the display (it is usually soldered on Epson printers) and the "door servant" as I call the part with the blue cables. The "door servant" pushes the stick down when it has electricity.
I never found these like this in Epson printers.3 -
TIL how time-delay relays are used in circuits with a hell lot of power. For example to power and control the motor of a machine that lifts 20 people up to the sky and back to ground again.
FYI this is a simple circuit. We will hopefully start experimenting with SPS/Speicherprogrammierbare Steuerung (Programmable Logic Controllers). I cannot wait to make use of our predesigned circuits with complex logic gates with the new unit we will get to know.
Unfortunately, we will do practical networking (testing cables for the signal strength and speed, building a network of telephones and call each other - guess this is going to be the funniest part lol, etc.) before the SPS and LOGO software phase.
Btw. I am doing an all-nighter rn and repeating everything we did in our recent signal calculation lesson. We have another exam tomorrow.11 -
Passover cleaning, for a keyboard geek.
On the right, I duct-taped a funnel and mesh screen on a vacuum cleaner motor, since I ran out of compressed air.
The keyboard is a Model-M reboot from Unicomp, bought on Massdrop (https://www.massdrop.com/r/JDLA54).1 -
How to spend more time writing docs then code?
15m = doc
1m = code
<code>
/* Motor DC + Mosfet IRF520 + Servo
Materials:
IRF520 (Mosfet) + Dc motor + Batery (3V min)
diode (1N4007?)
Changed Tip122 for IRF520: Tip122 has less resistance and produces more heat
Hardware:
ARDUINO = A(port , 5V , GND)
MOSFET = M(A[port] , + , GND)
MOTOR = MOTOR(+ , -)
BATERIA = BAT(+ , -)
DIODO = D(sinal_1 , sinal_2)
MOSFET
M(port) = A(port)
M(+) = D(sinal_1) AND MOTOR(+)
M(GND) = A(GND)
D(sinal_2) = B(+) AND MOTOR(-)
ARDUINO
A(port) = M(port)
5V = null
A(GND) = M(GND) AND BAT(-)
*/
#define motorPIN 8 // A(port)
int loopy = 0; // Loop variable to limit de program
void setup()
{
// Initialize the motor pin as an output:
pinMode(motorPIN, OUTPUT);
}
void loop() // 1 loop == 100ms
{
if (loopy < 10) // Turns motor ON for 1 second
{
digitalWrite(motorPIN, HIGH);
}
else // Turns motor OFF
{
digitalWrite(motorPIN, LOW);
}
}
</code>22 -
Recently bought an Adafruit Industries board which controls stepper motors over i2c. It has a Phython library, but my code is in C++. Decided to convert the Python code to C++ to get started quickly. Behold the magic line that made everything work:
std::this_thread::sleep_for(std::chrono::milliseconds(10));
I can't believe Python's ridiculous performance is being harnessed to let the field generated by electromagnets in a stepper motor to grow to sufficient proportions to affect movement. Without the said sleep(), the stepper motor just vibrates with my C++ code. Not sure if the library was created with Python's performance in mind, or they simply didn't think about back EMF in electromagnets...5 -
What is it about robot collected data that makes researchers so anal? Like, dude, it's not even personal data. It's literally robot's joint motor recordings. It's not nuclear data, so why the fuck do you protect it like your life and your country depend on it?
I hope you get fisted by that data every night and how it will end up in oblivion sooner because you didn't publish it. You asshole.8 -
Reinforcement learning is going to be my end. 😩😩😩☠️
(currently stuck at how to put images as well as a bunch of other -motor- values as input... and exactly what am I getting as output again?)
Pulling my own hair out... Ooooooof6 -
https://youtu.be/2VkNWLYD5c4
What this? Kids who use tablets and technology have IMPROVED fine motor skills over those who do not.
How can this be? Everything the new generation has that older generations did not is always the worst thing ever.3 -
Hey guys.
This was my project for today.
Power supply, 5v USB 25A x2; 12V 10A x2; extra power standard cables to power HDDs and such.
Plus a sand paper whatever it's called :p
Ps: Need to know how to power it without the standart power supply, with cables direct to the brush motor pins. Anyone knows? Have arduinos, l293, easy shields, uln2003a... Would one of this work?
Hope you guys like my 🤪 ideas5 -
What's the most efficient motor driver for a small DC motor that I want to run off a 5V source for aurdino?
I previously had a L293D and it was inefficient as fuck, it got so hot that almost burnt my finger, (ran it from a 12V supply) and it dropped a good 2 volts from power supply to motor.
Is there a good enough off the shelf driver or do I have to make a H-bridge myself using MOFSETs?6 -
A one time gift consisting of the following in a party bag without any letter to explain why:
A jar of Polski-Ogorki pickles, synthetic motor oil, a Chicago's Cubs cap, a My Little Pony doll and a dollar store clown costume.1 -
I have lost now another device to planned obscolence (how is that still legal), my g3 officially took its last breath two days ago, first it was its battery dying (thousands of devices broke that way [exactly two years after buying it] and at that time there was no batteries to replace it with) - whoever was brave enough to hold onto his device for longer than the battery failure - he then faced the simcard reader breaking and that was my case now too.
I asked many colleagues for help and even found a guy that does repairs for the oldest phones (got too excited), but even he couldnt find the issue, besides a guess that its the main chip that partially died on purpose or it got somewhere desoldered by the always and poorly managed overheating issue, which would cost almost the same to replace as just getting a new phone in the end and even then, theres probably a third switch they planned, to give you the final bullet.
I got a Xiaomi Redmi Note 4 now and really gotta say they have an amazing near vanilla android experience and their "two phone" isolated spaces are quite handy to seperate work and private notifications, apps and files.
It was even compatible with lineageOS and has a simple website to unlock the bootloader (a first for me, never saw any company making it that easy), but after trying their version of it, I don't even have to switch.
I will still miss the vibration motor of the g3, the feedback of it when typing is still to this day the best one I ever tried.8 -
I took me the whole day of wondering and debugging to see that I was checking if a variable was 0, to set up some stuff, and the variable was only incremented after that check, but I had a return statement inside of it. So it just went in, saw that it was 0 and returned, over and over. And I was wondering why the fuck nothing happened... because that method got executed every second or so and should've moved the motor.
Gotta love your hardware programming. Either you do it right the very first time, or you spend the whole day staring at a piece of code, compiling, throwing in console prints etc.
Its 1 am, where I live btw.1 -
Is connecting your aurdino and motors that it'll drive (through a motor driver of course) to the same battery bad for the aurdino?
I mean those are small DC brushed motors, will the noise/fluctuatuons they generate harm the aurdino in the long run?11 -
Went to visit a friend at a junkyard I worked for 6 months and brought some stuff I found there...
I new there was a DC motor on this piece... And what a goodie. To bad I only brought 3 hehehe1 -
Ok so I have never really used motors before so I have no idea what I am doing, but I was wondering how to calculate how much weight a motor could move.
Say I have a trolley that weights ~300kg, and I attached a motor to each of its 4 wheels how would I calculate if it would move/what would be needed to move it, and how would I know the RPM of the motors. (Friction can be ignored and it would be on a flat surface)
Also, if I added 4 more motors to turn the wheels, since its just moving a small wheel and it wont be supporting the weight, could it be weaker than the other motors, or would the force that the wheel is experiencing from the trolleys weight effect the turning of the motor.1 -
A new way appeared in my life.
Everything related to cars, metal and motor engines.
I may or may not have to dissapoint some people with it, but I am not going to be a dev I guess.
It was all fun and chill. Do not worry. I am not going to leave this awesome place haha, just felt like mentioning it. :)8 -
Hey guys
question for the hardware guys.
How can I run a brushless motor without a ESC ? like a CD-Rom brushless motor.
Can I do it with an arduino + h-bridge or maybe an ULN2003A??
Thanks32 -
I haven't had anything dev related to rant about in a few weeks due to the fact that I haven't done any developing in a few weeks. I have a lot of personal shit going on that I'm slowly getting past. Basically some shit went down, the girl I posted about a few times, we're just friends at this point. My best friend won't talk to me and hasn't in about 2 weeks now. Fun.
Then there's the fact that I have school Monday through Friday, and work Thursday through Sunday, so I get zero days off. So I just..don't have the time to do developing right now. But, here's a kinda funny story (not that funny)
So this Sunday, I was leaving work. I decided to roll my car's window down to say bye to a few people as I was pulling out of the parking lot. It was cold so I went to roll my window back up....and it's fucking stuck. I'm sitting in about 15°F (-9.5°C) with no driver's side window. Turned out the fucking motor that moves the window had died. And I had no money to get it replaced. So I did the logical thing, I called my mom to try and figure out what I should do. She was asleep but my dad picked up. He called me a dumbass and said he'd pay to get it fixed, since it was his car before and he never told me that the window was faulty.
Actually got it fixed just yesterday by my cousin. Then I went to get my paycheck (a whole $200!) since my work has my name spelled wrong in their system so I currently can't do direct deposit (gonna talk to the general manager about that tomorrow). And now I'm just sitting in bed, waiting for my check to go through. (As I was typing that last sentence, someone from my bank called actually). I would really appreciate that $200 right now, cause I have about $2 after paying for car insurance and gas and stuff. I actually need to fill up my gas soon too..2 -
Hey motorcyclists
Just now have I come across something quite unbelievable...
Is this a real deal? what's the catch? Why would it cost that little...?
Link1: https://alibaba.com/product-detail/...
Link2: https://jszhongxing.en.made-in-china.com/...16 -
!rant
Few days off cause the month was like an motor race on drugs while having an heart attack.
I slept two days sitting either on the couch drooling or actually sleeping.
Yesterday I managed to wash and hang up a full cellar room of clothing... And cooked enough for a 5 head family with 3 teenagers.
Today parents drove over, brought even more food.
I started an telephone chain and now roughly 3-4 friends come over tomorrow to take the food and distribute it among their parents.
It's ... Irritating... How I need to have stress to reduce my stress level and feel more relaxed.
XD
I'm glad I'm having a few more days off... I think I'm now in a near coma state due to eating.
*Burp*
Maybe I should go shopping tomorrow.... 🤔😆 -
hey folks, what are your thoughts on different kinds of insurances?
I recently went through a major accident that would have impacted our finances significantly , if i didn't had a corporate insurance. And this led to me researching a lot into different kinds of insurances : health, motor, home, travel, life, term life,... there are so many of these.
And they have a significant cost! they do cover benefits (claims) of even bigger amount but some1 with my salary and 12 different insurance will be shelving out approx 4 months of salary as premium every year. at the same time, our dear ol govt is taking 30% (4 months worth) as taxes.
and then we have a simpler generation that was my parents, who lived their 50+ years without any of these insurances and taxes. their income sources were very less to be taxed (or make considerable savings) , they will rush to govt hospitals for free treatment and prey to never get a major disease, and not leave the world without making their dependents independent.
so this is a weird philosophical question. should i live knowing am secured from stranger companies which may help at times ,while i try to manage my live with 40% of my salary?
or should i live like my parents(& billion others), trusting the govt and system to help me in times of need while i feed them my 30% salary an try to stay alive with the remaining 70%?4