Видео

Were do you get battery. And will watch repair shops do this 4 u

thanks for sharing!

repair time just 30sec ! it's worked tq 🙏🙏🔥🔥

Amazing! Very clear 👍👍👍

I use a somewhat different method. Since I am a very large man, I want the chair all the way up, all the time. So my fix is to go to the hardware store, get a piece of water pipe that will just fit over the cylinder, measure the gap between the seat and the wheel, cut the pipe to that dimension and install it over the cylinder. Presto, the seat will now stay up for decades.

There is an extension hose available for this strut pump that will make the job easier, keeping the pump on the ground.

Thank you. Amazing that you give out everything just like that, so that others can succeed. God Bless!!!

Thanks David! Look forward to more of your helpful videos

God bless you David!

I'll give this a go. My chair sinks in increments of 5 cm over an hour (ish) . Have another chair that just dies on sitting. So I have 2 to test with. :) The dying one might get more extreme testing in fixing. Call it a test all chair. :)

6:04 Easiest way to remove the cylinder from the seat on the top side is, take a plumber wrench and grip the silver part turn it one direction and will come off easily.

Excellent video. Thanks.

My recently brought chair is suddenly leaning forward at about 15 degree angle. I thought it might be the hybdrorlics.

Does this work with a chair that is stuck going up? If not can you make a video kn hpw you might fix it if you havent all ready?

RISC-V programming is pretty easy. Just use C.

You have great knowlegde, someone like you can help me to update the port of DOOM on the 3ds

David, thanks for your inspirational videos. Replacing the cylinder is cheap (about $15) but it's really difficult to remove the old one. If at first you don't succeed, use a bigger hammer! And the new cylinder failed in no time. I had limited success leaving the chair upside down for a few days. That worked for a while but ... ugh. The problem clearly lies with lubrication of the seals, top and bottom. In desperation I tried adding lube to the top seal et voila. It worked. I removed the seat from the top bracket (6 screws) and with the chair (minus seat, arms and back) upright I added a few drops of oil around the exposed button. Operating the lever allowed the oil to enter the cylinder. The result: two office chairs now working normally, and one happy bunny.

Thank you very much. You must be an engineer. You did an excellent job with the demonstration and with the video.

What type of oil you use

Nice vid. And some funky synth tunes to go with it.

probably good to do a new seal kit on each if they are sticking that bad.

Thanks David, i was looking for tutorials on the 2350 pio but i guess they will be very similar if not the same.

Thank you for making this type of content. For those of us taking the dive into arm software development, it's helpful to see real world examples of how to take an open-source project and see the full build chain - (AKA Not just relying on VS Code) - and understanding your craft!

wow this worked great!

an alternative title ,"the second worst enemy of the modern human and how to repair it "

Hi David this is by far the best series on RUclips! Would you also consider building a SSD1306 driver where you would first have to use I2C? I already built a SSD1306 driver in STM32F401 ARM so I can share that with you to save you the trouble of driver development that would leave you only with making the I2C assembler for the Pico.

"No VsCode" is an absolute hard fast non negotiable LAW (not rule) for me. I would code pure asm for windows uinsg dos edit before I used VsCode. The interface is constantly changing. Version gets bumped buy .00000000001 and the interface is HORENDOUSLY different simple operations take an excessive amount of time to complete such as Cut this line, Paste that line. The entire concept of having two people editing the same source file in the same directory on the same machine is what I call "Cooperative Destrouction". It will never work right. I use Sublime Text and there is NOTHING you do with Vs that I cant do with sublime and sublime downloads in less than a second and is BLAZINGLY fast. it also has an amazingly CONSISTENT user interface, something microsoft has never learned to achieve. You couldnt pauy me to use VsCode

Good to see I'm not the only one who finds VS Code irritating

im gonna give this a go, fantastic

You must have saintly persistence to work through this, all for the sake of the viewers out there in RUclips land! Bravo!

There ain't nothin' so manly as bit-bashing in assembler! (BTW, please take the "manly" part with just a touch of humour!)

neat!

i never adjusted my chair height after the first day of owning so when mine started sinking i just took an old piece of PVC pipe i had laying around, cut it in half and then clamped it to either side of the cylinder and clamped it in place. never had another issue! ;)

It's odd that I got this reccommendation. I have a chair from Uline, cost about $350. Cylinder is sinking. I ordered a new one for $12. I can't even figure out how to remove the one. Still can't get it out.

Perhaps one day i have a workshop like yours. And land a plane myself for hobby.

hi David i'm from indonesia. i have the same problem... can you send me the file?

A lot of the chairs must be designed for tall people. I'm 5'8" and I always have to lift chairs to the top. Or is it that the tables are too high? Dunno. Anyways, if you are the only one using the chair it may be easier to ditch the adjustment feature and put a sleeve over the shaft so that the seat can't come down. A piece of cast iron water pipe should work. Anyways, nice video.

can we use engine oil instead of hydraulic oil.

Great video! Thank you!

❤

Now, there isn't actually anything special about R13/SP and R14/LR in the main register file _except_ if you're using Thumb. Unless you use BL to jump and copy the PC into the link register, it's just a normal register. R13 as the stack pointer is just a convention and you can use STM/LDM with any register you want. Only R15/PC is really special purpose.

Thanks for the video, simple to follow and crystal clear explanations, I love it. I would have liked to discover your channel 3 years earlier.. 😅

When you hear the phrase “office chair blows up”, you might think it's a joke or a scene from a comedy movie. However, it's a real issue that has been discussed in the context of office safety. Even though such incidents are rare, they do occur. may be time to get a new one Gaming Chair Tragically Killed a 14-Year-Old

Thanks David. Much appreciated, seems to have worked for me.

Impressive!

Thank you David. We'll try it.

Thank you sir, not sure if it will fix it but now I know why it won’t work, I appreciate your teaching

❤wow❤

I’m just using the Key (have a couple of them) with ESPHome within Home Assistant. The only great thing about them is that I have them laying in a drawer. I just use the ESP32 as a Bluetooth proxy and the pico is only a status LED. 🤷

It might make sense to completely service your struts, i.e. checking the hydraulic fluid levels. If you are low on fluid, you don't get a very big change in gas pressure inside the strut with extension/contraction. If your strut is full of hydraulic fluid, the pressure changes a ton during proper operation and it is likely much harder for the struts to get sticky, because the strut is much more likely to settle at an equilibrium pressure that equates to a really small range of extension. I believe for our Pipers, you basically want to put it on a jack that allows full extension of the strut, release the air pressure and remove the valve core. Then use a 1/4" tube with hydraulic fluid around the valve, cycle the strut up and down until no gas bubbles come out at full compression(maybe see if you can flush out some old fluid), meaning any gas in the lower chamber has been evacuated. Now the strut is entirely full of hydraulic fluid and no gas at full compression. Set the plane back down on the strut, fully compressed with zero gas, pop the valve core back in, and NOW inflate your strut to the proper height. I'm guessing/hoping your Oleos will never feel better...