E7Pro standing desk: bit.ly/MatthiasUS bit.ly/MatthiasCAN More economic standing desks (desks or frame only) for smaller desks: bit.ly/matthias_fs Or buy on Amazon. USA: amzn.to/3EGPdEC Canada: bit.ly/3zv7ceQ Buy the wholedesk: amzn.to/3MeADJG
thanks for sharing this Matthias! you are such an ultimate engineer! but we definitely won't recommend others do something like this haha🤣 if you'd like to explore it, our customer service will stand by 24/7
I know Mattias doesn't like the desk... But honestly, I was super impressed with that unit! I very much enjoyed how "it" can kind of "auto correct". I work at a place that uses a "standing desk mechanism" but it jams all the time and I often feel like "I" am the only one who can get it to work again... anyway, I'm impressed and would like to use this mechanism for my own project coming soon... But think I need just a tiny bit more travel distance. (I need apx 30" of travel - Maybe we can chat, offline?)
P.S. What is max weight capacity? I don't exactly need tremendous heft, but knowing the max capacity can help influence my design - I am super excited for this idea (my idea) to come to life.
All these years and you have not changed a thing about your videos. Probably because they are still fun and informative. And you stayed true to yourself. I salute you Sir.
@@matthiaswandel In the end, the ruined part is the outer tube. i bet once it is apart you could figure out the dimensions of said tube and replace that part to put the whole thing back together again with new tabs/crimps
I feel humbled every time I watch one of your videos. It was bad enough when you were making elaborate machines out of wood, now you're an electronics expert as well. I feel like I need to study
a german youtuber i watch did sponsorships with flexispot quite a lot. he eventually used the E7 to build a work table. it definetly has enough power for a big table with some drawers, and its apperantly really nice to have it lower for normal work and high for chisel work :)
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Do you have a link? I really wonder how it stands up to mallet blows over the time ...
Maybe a little bit smaller, if you have a table rated at 100kg/200pounds, as a customer you would probably be a bit upset if that was only true dead center. So if you have one motor, it needs to be able to lift 100kg and the mechanics will balance this. If you have two, they each need to be able to lift 100kg, since that's the worst case. There is some slack, since there is losses in mechanics and maybe some forgiveness from customers, but I'd estimate each motor in a dual setup to be at least 75% of a single. So 50% more in total.
I've had my Flexispot desk for a few months now, and I've absolutely loved it. Dark Bamboo desk top, dual motor legs, 3 stored heights and an alarm for time based reminder for movement. The reason it wasn't bottoming out around 7:49, was because it was running fast enough that when it reached the bottom it hit hard enough to trigger the collision avoidance. That's why it kept reverting to the last static height you left it at
I feel like you're unusually good at finding the edge cases for these sorts of things, and the flexispot seemed like it more or less handled them, not bad at all!
I think you made FlexiSpot look awesome! I have been around lift desks since they came out and all the issues you introduced to screw the desk up were already allowed for in their engineering. I can guarantee that many other desks would not have done so well. Well done- am headed over to their website now.
"That seems a bit extreme"... one of the few guys in my branch to actually use their adjustable desk would've really appreciated this at the time. He was 6'7" and had to put a varidesk on top & extend it just to get it high enough.
Matthias looks to be about 5'8" or so, so if we look at full extension and imagine him being a head and a half taller...yeah, i would say that checks out pretty much. They probably designed it for a max height of 6'8" or so.
I am very pleased that you tell the measurements in inches and cm. Your explanation is good and informative. I enjoy watching your videos. Lots of good ideas are given. Kind regards from the Netherlands.
Simply fantastic! You are the only one who, in addition to showing the product in normal use, showed all the technology (electronic and mechanical) of the interior. Thank you
It would be interesting to see a DIY version made by you. Woodworking + salvaged steppers + threaded rod. Raspi or arduino or esp32 for controlling it. And of course, some wooden gears.
It's a shame that Flexispot didn't include Matthias on their website, he's vastly more qualified RU-vidr than the ones they did feature. Also these legs are suprisingly cheap.
I can understand it though due to likely not wanting to show pushing it to its limits or a tear down. Most customers are just going to want to see how easy it is to actually put a table top on it and use it as a desk. (Haven't seen their website though so no idea if they have other videos that are doing the same as Matthias but I'm assuming not).
It's not surprising at all that they don't want to feature a video of their product being torn down... I'm more surprised manufacturers still send stuff to Matthias, lol
Feels like it’s been over a decade since I’ve been watching this channel. I feel so inadequate and stupid while watching but I continue to come back. Probably my #1 RU-vid that I watch. Keep pumping out content good sir.
Some of the stuff in the video (re-aligning Z axis, for example) is stuff I've seen in 3D printers already, but it's good to see someone explain how all this works from a different angle.
It also makes sense that it would bottom out the lift mechanisms on both sides to zero out the system thereby resyncing the system. It probably uses locked rotor current detection to register that the motor has reached its limit.
My first visit to your site.. and so impressed of your ability to follow your curiosity in such a logical problem solving manner while exploring the unknown. Wanted to know all these things too. 🙌 great entertaining edits and a very informative video!
It's pretty impressive that they thought to make it self correcting if the legs get out of sync. This might be a better choice than the version with the coupling shaft if you have kids, or pets that could stick things in the coupling shaft. The fact that it can take a bigger top would be a huge consideration too. The two motor system would make it able to have a higher load on the top.
Thanks!. I kanda lost track of you, but you were the first RU-vidr that I can remember following. You're still as good as ever and I have some catching up to do.
Well this is the video that finally helped me pick a desk after a year and a half of looking. Subscribed, and I look forward to binge watchjng the rest of your content.
Be it inadvertent or not? you promoted how well the Flexi was designed and put together. So in satisfying your curiosity. to did a sales pitch of a kind. So you stayed true to your convictions and theirs all at the same time well done Matthias! ECF
Thanks for this video! I recently purchased their 63" model with a 4 segment top, but I was kinda blown away at the quality of the components. Your video about how the dual motors work (the motor units on mine have the same 6 pin connectors) gives me great confidence in the product I have.
Most comprehensive tear-down I can remember. Got a real laugh at M’s comment that if he grinds off the tabs he won’t be able to reassemble it - as we look at a workbench full if parts, tabs, wires, and scopes. But he’s right. Congrats to the desk designers and engineers for surviving!
Matthias, inspired by your first standing desk video, I purchased a double motor frame base and built a heavy 3' x 6.5' top for my wife, a textile artist. She loves not having to work bent over on the dining table-type arrangement she had before. Over the last few months, I have noticed that she seems to keep the table at the same height and not make adjustments, I would not have known what that preferred height was though, without having the adjustable table, so now if she wants another standing table in her studio I will just build her an additional one at that fixed height. Thank you for your inspiration!
It really shows how much engineering and thought goes into those kind of things when you try to trick them and there is kind of a solution for that problem.
I finally decided to get one of these frames, and then had to go hunt down your affiliate link! It gives me way more confidence in a product after seeing you tear it apart and put it back together. I agree with your stance of not ruining a whole desk just to see what's inside. The fact that they don't have spare legs lying around from returns or warranty is interesting as well.
These things really have my gears turning. I've been using drafting chairs and 'standing' desks (otherwise known as workbenches) for a long time, before they were cool I guess. So I've kind of ignored the motorized units. However, you make a very compelling argument at the end! When I'm soldering or inspecting circuit boards, I do sometimes wish my desk wasn't at 'typing comfortable' height. And this unit goes so unnaturally high that even when seated in a very tall chair or standing, I could really bring the work up to my face.
@@matthiaswandel That's too easy and way less interesting. The regular chairs I have at my disposal are unfortunately too low even at the highest adjustment. The drafting chair is still quite tall even at the lowest setting. The best solution is probably to just put my work on a cardboard box on top of the desk.
You are amazing and very analytical. I will say, without a doubt, that you put more into tearing that apart to determine how it works then I would have (because I was getting nervous in how to put it back together). Then you put back together, and it ended up working as well as before! You're gooooddddd. In the end, I feel that desk seemed like a good quality investment. And it provided a considerable number of adjustments for positions. If I needed one, I would get one.
Totally sold me on the quality of the Flexispot desk units. Taking it apart was a fascinating look into the design; I will definitely purchase one a some point. I think drill a 8mm hole in the plastic end that is crimped in and send in a 7mm USB cam 🙂 Or get Flexispot to send a CAD model or a dead returned leg, like others have said; we are curious.
I‘m so glad Matthias tested this mechanism. I was always wondering if my standing desk motors would stay synchronised if I disassemble it, move one motor with an external powersupply and reassemble it. Now my sould can find peace :)
Back in like 2013 or 2014 the company I was working for rolled out a couple thousand standing desks. On those early ones the controllers would occasionally get out of whack and drive the legs unequally, leading to someone's desk getting tilted
thanks for disassembling the telescopic threaded legs, im planning to powder coat my e5 but now i saw the internals and how hard it is to completely tear down gives me the reason not to do it lol
Matthias Wandel: the oldest 8-year-old boy in the world. He gets a free brand new high-tech electronically-controlled standing desk, and IMMEDIATELY takes it apart to see how it works. Well done, Matthias. Well done. 👍👍
I tore apart an old C band satellite dish actuator motor and drive screw last week (to see how it works). The screw tube with crimped nut etc is very similar to what you showed except my tube was circular rather than square. A grinder and lathe (plus one blood sacrifice to the shop gods) got it apart finally.
Interesting. I'd have suspected there would be one motor and a belt or chain running to each leg (like an automotive lift). I'm sure they probably thought of this at some point but the bean-counters added up all the parts and determined they could do it this way cheaper.
No, the problem with that is that its width adjustable, so the buyer would have to splice chain links and get it all lined up together. A second motor could cost less than the support cost and returns for something a consumer can't handle.
I have a similar style of standing desk mechanism(two separate motors, connected via cables and a control board - just slightly different design). Every now and then one of the sides will have a bit of a hard time going up or down, and the display would show rst. In that case, you're supposed to hold the down button(on mine I have to hold it for a few seconds before it starts moving, but in your case it seems to go down right away), wait for it to bottom out, keep holding and it goes up a tiny bit and then it stops. This is the reset procedure that I found in some document online and it seems to do the trick every time. Your desk seems to do just about the same thing - it bottoms out both motors and then goes up a tiny bit and then it shows the height on the display.
So basically there's just three threaded sections inside that bit. There's the first threaded rod that you can see that the motor attached to, a second threaded tube with internal and external threads that the motor rod threads into and the square shaft with internal threads that the tube threads into. When one section reaches its end there's an end stop to keep it from uncoupling and also forces the rotation into the next threaded bit. So first the tube unthreads from the motor rod and then the tube gets turned by the motor rod and unthreads from the square shaft.
Wieder mal ein 1A Video von Dir, danke! :) Wenn jedes Sponsored-Video so wie dieses wäre, hätte ich auch kein Problem damit :D Aber was man auf anderen YT-Kanälen so vorgesetzt bekommt... Ne, da wird einem direkt speiübel... Viele Grüße aus Österreich.
I looked them up. The prices aren't as terrible as I expected them to be. I think the electronics workbench idea is a good one. I could see seetting up a drawer in the center between the legs as well.
@@JonnyDIY I looked up patents for Flexispot, and all I got was US patent US-11633038-B2. I didn't read through it all, but the drawings focus on the leg design and don't show the inner detail. Issued in April of this year, fwiw.
Those controllers are used on Mobility scooters and powered wheelchairs. there is a programmer device that can be connected via the remote port but I forget what it's called. As the sit/stand desk market moved farther away from it's roots I think they also started getting the controllers customized, if so the software to program the controller could also be locked.
Now this is a proper review! Your content never disappoint! Those legs are nice piece of engineering, the whole mechanism seems to be very well thought! I also agree with your theory about whats going on inside that square crimped tube, that was my initial thought too.
Very cool, thanks for the teardown and explanation! Really neat how they seem to operate in tandem with such simplistic logic. And under normal circumstances, they probably won't have to deal with those more complicated failure modes you demonstrated. I'm not sure a moving desk would suit me at this time, but after this video, I do at least feel a bit more comfortable with the idea, and how reliable and safe it might actually be. Still might be nice if they had mechanical locks to prevent it from collapsing, but even as-is, I'd definitely consider these - like you suggested, for electronics and DIY work. I hadn't thought of using a standing desk with a sewing machine, but yeah that might be nice, too.
Great video to satisfy my interest, I just bought an IKEA Bekant desk with of very similar construction. Had to resist taking it apart to figure out how the dual telescoping mechanism works. Amazingly it only has one 3 pin cable between the integrated leg assembly’s, so there must be some sort of fast digital communicating with a closed loop controller in each leg.
So funny that you uploaded this - I just bought a similar dual motor standing desk, though it only has two leg segments. As such, the minimum height was also too high, so using your last standing desk video as inspiration I took it apart and made modifications to get it lower. I feel your pain with those end clips! You did a much better job than me of not getting lithium grease everywhere 😂 a three segment standing desk does seem to be the way to go, will consider this brand if I ever need another. Thanks for the inspiration 😁
We have those same desks here in europe, seems exactly the same. I believe they came with intructions that you should run them down to bottom when you first power them on to get them in sync.
I've got a DeskHaus standing desk, and it's got the same reset procedure, run it all the way down and it resets itself. I'd assume almost all electric standing desks have a similar procedure. It was cool to see the inside though, I was often curious about that myself, thank you
I have a height adjustable desk just like this - it's interesting to see the plastic mechanical parts inside the legs. I had one leg fail mechanically on mine after a few months with a horrible knocking and grinding noise when it moved. Fortunately mine has never gone out of sync in 3 years as I wouldn't be able to bottom it out to re-sync it again without it hitting a radiator
Thanks for the full disclosure bit at the end. Very cool video. Hopefully Flexispot will do a tear down and show whether your reverse engineering was correct.
I don’t know what they cost and I kind of assume they’re not available in Europe, but that seems like a perfectly competent execution of what is, at heart, not all that complicated a system.
I have a similar desk (dual motors, no gearing/shaft interconnect between the two legs, triple stage legs etc.) that has a 150 x 70 cm top, bought from a company called Monarch in India (I'm sure many components are imported from China). The motors are claimed to be Bosch. My standing setting is 112 cm, have never tried it beyond 113 cm. Weight rating is 100 kg.
