The latest articles on DEV Community by suptek (@suptek). https://dev.to/suptek https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4193608%2Ff4348281-d51c-459c-8480-764d615ff817.png https://dev.to/suptek en suptek Mon, 19 Oct 2026 08:23:12 +0000 https://dev.to/suptek/a-check-when-the-monitor-arm-sinks-e0o https://dev.to/suptek/a-check-when-the-monitor-arm-sinks-e0o <p>I look after one gas-spring arm, and the check I use is simple. If the screen drifts down after I let go, I do not add another mount. I read the weight, the VESA plate, and the tension first.</p> <h2> What this arm is </h2> <p>The arm is a Kehao M252. It holds one monitor. The page lists 17 to 32 inches, and a weight of 2 to 10 kg. The plate is VESA 75 by 75 mm or 100 by 100 mm. The finish in the product photo is starry black. Cable clips run along the arm, which matters because a loose lead can tug the screen down.</p> <h2> How I seat it </h2> <ol> <li>I choose the clamp or the grommet before I touch the tension. Desk tops from 10 mm to 80 mm thick are the range given for that base.</li> <li>I fit the VESA plate to the back of the monitor, then slide that plate onto the arm and secure it.</li> <li>I set the gas spring for the weight I just hung. A 2 kg screen and a 10 kg screen are not the same turn.</li> <li>I tuck the cables into the clips so they do not pull the screen down on their own.</li> </ol> <h2> When it still sinks </h2> <p>I take the monitor off and read the weight again against 2 to 10 kg. If the plate matches 75 mm or 100 mm, I turn the tension a little and hang it once more. I do not keep turning until the arm is rigid. A spring that is too tight makes the screen hard to bring down to the desk. I also look at the desk edge. A top thinner than 10 mm, or thicker than 80 mm, is outside the base I was shown, so I stop rather than force the clamp. I write down which way I last turned the screw, so the next try starts from a known point.</p> <h2> How I leave it </h2> <p>I leave the arm at the height I actually use, not parked at the top of its travel. The next morning I see whether it held that height. One monitor, one plate, one tension setting. If it held, I leave the clips closed and I do not add a second screen to this arm. This M252 is for a single monitor.</p> <p>The notes I keep for this arm are on <a href="https://suptek.co.uk/" rel="noopener noreferrer">suptek.co.uk</a>.</p> hardware tools