EEVblog

[@TheDefpom]

Safety relays are used on plant as part of interlock circuits often using coded signals and timing sense circuits to only activate or deactivate without interlock inputs being faulty, such as a stuck switch. An example would be a machine guard for access to moving parts

[@EEVblog2]

Gotcha

[@Damicske]

Also know as emergency switches. The springy bit on the siemens one is to put it on a din-rail :)

[@tenchicks]

You know all the Yankee comments makes you a racist towards all americans

[@marcop8273]

Yes, usually inputs are combinations of complementary states and/or equal states. You can choose maximum time permitted on invalid state (for example, if you use 2 complementary inputs, it is permitted X time of non-complementary state), if time exceed set, module goes to fault state and outputs are set on low state. Dave, this can be useful to understand safety devices: literature.rockwellautomation.com/idc/groups/literature/documents/um/1734-um013_-en-p.pdf

[@TheDefpom]

Marco P - Yep, I am more familiar with Pilz systems but they all work much the same way.

[@linagee]

26:00 It's not supposed to be USB powered. The barrel jacks power it. USB is just for flashing firmware.

[@yippdogg9250]

@Kris Tippins He's not the brightest crayon in the box all the time I have noticed...

[@tookitogo]

Wrap World Creations He definitely could benefit by sometimes taking a moment to stop talking and look instead.

[@105d11]

Yeah. Running two motors + lasers, etc on 5V, 500mA?

[@sjm4306]

@Kris Tippins I give him a pass every once and awhile. It's hard to provide off the cuff commentary while analyzing some random technical gibbons you haven't seen before all in real time.

[@yellowcrescent]

10:45 spring on the back is so that it positively snaps into a DIN rail. And instead of having to use a screwdriver to disengage a latch/lock, you just push down/pull out to release it. So much nicer to use than other types.

[@EEVblog]

Ah, yes, of course.

[@maxtorque2277]

Dave, you missed the solderless piercing contacts on the siemens safety relay! The I/O headers are NOT soldered to the pcb, but their pcb tails simply press fit into plated via's on the pcb! This is a technique carried across from high volume automotive controllers (ABS/engine ECU etc) and means faster, cheaper assembly, and a more robust joint as that joint is a physically interlocked metal to metal joint. The unit uses two micros because it is a SIL safety rated unit, so one micro checks the performance of the second one, and on any disagreement the safety contacts are opened.

[@martenthornberg275]

The serrations at 4:30 are just to reduce light reflections on the wall into the sensor.

[@excitedbox5705]

Yup. Keeps the external light reflections out.

[@EEVblog]

Makes sense

[@epctroli6297]

@@EEVblog I'm pretty sure that those plastic parts focus your personal chi venturi into a calming state, even though you secretly desire to kill all humans, like Bender on futurama

[@Sickma15]

To me It looks like a channel pre cut so they could add a small piece of glass or a filter lens later if another customer needed some sort of special requirements.

[@theondono]

Sickma15 then they’d be perpendicular to the optical channel and lined up. I’m with OP, they’re just designed to avoid reflections by sending the light that hits the walls out of the sensor

[@Marzec309]

The relays in those safety modules are special relays too. They are what is referred to as force guided. If a contact becomes welded, the other contact cannot switch. This makes it possible to monitor the contacts for failures. Thus preventing an unsafe condition from going unnoticed.

[@jack_brooks]

The "hook" bit is for screwing in and out eye bolts or hooks.

[@EEVblog2]

Ah, makes sense.

[@Orbis92]

I was really surprised to see this in there. I can't imaging using a "hook bit" in the lab, or the iFixit bits while doing construction working...

[@qwertyasdf66]

I guess if your lab is also your garage, you might use hooks to hang stuff from the rafters. E.g. task lights above your work bench.

[@Aussiblue]

..and butterfly nuts (wing nuts); it's described as that in one of the bit sets I have. Also see www.kwb.eu/en/detail/index/sArticle/2946530

[@ovalteen4404]

Yeah it's odd, but the safety bit set I bought years ago also has one.

[@glenslick2774]

7:30 Molex plugs? You mean Phoenix Contact. Their logo is molded onto the plugs and sockets.

[@EEVblog2]

Did I say Molex?

[@glenslick2774]

You said Phoenix once around 16:20, every other time you said Molex.

[@afiacco9155]

Terminal Blocks works also IMO

[@frogz]

@@EEVblog2 and here i thouught you being the expert knew more than i and phoenix connectors were made by molex but nope! phoenix is the german company behind the euroblock??? connectors

[@linagee]

30:00 "Apparently you need two of these." No, technically only one is required to track location. Two are so you can get better tracking when the user is occluding the base station. (If they're facing away from one.)

[@Spirit532]

The accuracy also nearly doubles, and the global position fixing does as well(30 to 60Hz).

[@bjornroesbeke]

A "2D" barcode scanner scans in 1 dimension, a "3D" one scans in 2 dimensions. Hmm.

[@rkan2]

:D EANs are 1D and qr codes are 2D... That was a 1D scanner and 2D scanners are typically CCD/CMOS.

[@douro20]

Yes, those Schrack relays are custom but they are very similar to normal stock products under the SR6 series; these have what are called "force guided contacts" where even if the relay is stuck in NC or NO position the opposite contacts cannot be forced closed.

[@zxsq_]

w.r.t the vive lighthouse: the 3x3 led grid (also?) has red leds, they are part of the system that shows when the 2 lighthouses are synced. The 2 stations use optical syncing, but if they are in a situation where that isnt possible (e.g. large area, angles, reflective surfaces) the 3.5mm jack on the rear is for a sync cable. the 7seg display tells you what configuration the individual lighthouse is set up as, A/b/c mode (A and b for cable sync, b and c for optical sync) It didn't work because the usb port is intended for firmware updates, not for power. Though usually the updates can be run over bluetooth (the power is 12v 2.5a center positive) the g sensor in addition to any use in angle it may have, also allows the lighthouse to flip the 7seg display to be readable if you have it mounted upside down. somewhere on the front top, you missed an rgb led, the main way to see the tracking and sync status. I believe, the horiz and vert lasers flash alternately. The tracking system consists of ir recievers mounted all over the controllers and headset. It takes any 5 of them being triggered to establish tracking, and then any 3 to maintain it, for each part (2 controllers and 1 headset, each need 3 to stay tracked) the 5m*5m space is a very conservative maximum. I have heard of 25m*25m setups using very high mounted lighthouses with cable sync.

[@DerteTrdelnik]

AFAIK g sensor is also used to stop the spinners when the lighthouse is moved while operating, maybe to prevent damage from centripetal force or detect wobbly mount, all I know is that when moved it stops until left alone

[@Muzer0]

The warehouse in that video is very close to where I grew up; it actually burnt to the ground earlier this year thanks to a dodgy battery charger setting alight the plastic lid of one of the robots. Up to 400 jobs were at risk as the warehouse will take two years to rebuild.

[@Milamberinx]

The robots run around without their plastic lids now. They don't look as nice, but obviously safety is more important.

[@tookitogo]

Muzer0 Do you have a link to a news article (or keywords to google)? Just curious to read about it!

[@iglooom]

28:08 look at capacitor, it seems to be shorted on other capacitor.

[@stuartcoyle1626]

Lasers can cross just fine. Photons don't interact with each other, or for the wave afficianados, the waves just interfere at the point of crossing.

[@HighestRank]

Stuart Coyle yes that’s what I told my physics professor two decades ago, and was told that I wasn’t correct.

[@stuartcoyle1626]

@@HighestRank Yes I suppose photons can interact, in that they are the force carrying particle of the EM field (QED) and though they cannot directly interact, they can produce virtual particle pairs (electron - positron) which can then interact with another photon. Also, in air there are non-linear effects that can happen at high intensities. These are not things you would normally worry about in a consumer device, unless you are an extreme audiophile of course.

[@Murgoh]

No! Don't cross the streams!

[@allthegearnoidea6752]

Its probably a 2 channel Emergency stop relay for control of a main contactor in an industrial control panel. You should note the relays are large in size as they are safety relays with force guided contacts. There will be two relays with AUX contacts that are cross monitored. If one relay relay is detected as being welded shut the the second relay wont close. So its for fault detection. Timers are usually run down timers so the machine has to come to a complete stop before the safety relay can be re-energised.

[@Valenorious]

51:28 Just above the device manager window there is a line on the webpage about Windows 10. Whatever that means though I can't figure out.

[@dkupy100]

Yes it looks like it was written in Chinesium.

[@Drew-Dastardly]

@David Kupferman You mean written in Chinglish. Chinesium is the material what with the iFixit toolkits are made from. Similar kits available from the Hazard Fraught for $10 yankee bucks.

[@dkupy100]

@@Drew-Dastardly LOL You are right. MY English she not so good.

[@AttilaAsztalos]

Yes, if only someone came up with a system to transform words into signs, so people could see them and instantly transform them back into words inside their heads... but alas, nobody did...and anyway why should the answer punching you in the fsking face get in the way of a good rant...

[@unknownsauce3768]

The driver page has a note about using the native 10 driver. Although it wasn't recognised ;-)

[@EEVblog2]

Typical Murphy

[@ChickmcOne]

12:20 these connectors have coded pins at the bottom.

[@piotrchec8156]

Am I in time loop? 23:51 Dave unscrews HTC by an IFIXit set. Later on 31:31+, on IFIXit unboxing & review, we can see HTC disassembled on the bench... I'm bit twisted :-)

[@eideticex]

I keep an iFixit pro tech kit in my tool box installing security systems. While most of our work is drilling, it comes in handy having every possible bit you'll encounter. Add a TS100 to it, some spare components in an organizer and you can fix your tools right there on site.

[@watchfullbird6381]

Did you ever plug the HTC vive base station into a 12V power source, or did you only try USB?

[@MichaelLloyd]

Siemens safety relays are interesting devices. You can't jumper them out to bypass safety inputs. I've used them in burner management control systems (very large fired heaters and boilers)

[@markushahnenkamm]

48:18 Tindie, not Tinder (-;

[@PaulBosMusic]

lol Freudian slip

[@sjm4306]

Tinderie? ... Tindieer?

[@stevetobias4890]

Isn't tinder a dating app or something, I vaguely remember skipping a few adds named something like that

[@GaborGubicza]

Great review. I'd add only one thing concerning the exposed terminals of the converter: 44:23 The second it got unpacked I was screaming about the exposed metal terminals. There are only a few mm apart especially at the input terminals. Any conductive foreign object, like a misplaced probe tip, or other parts can short the whole thing. Good first effort, congrats!

[@KawiiShiroNeko]

I work with these all days, and I prefer Siemens functionality but Schneiders Connectors. The vertically stacked connectors is a downright pain to deal with.

[@rayperigo5575]

Siemens if I have to, Allen BradleyGuardmaster more often,(similar contacts to the Schneider which are nearly clones ,) wont buy the Schneiders, support is brutal

[@mememan8704]

The base station needs a 12v dc supply to the barrel jack and the USB is just for updating the base station. Also the controllers and headset are covered with IR cameras.

[@EEVblog2]

Doh!

[@UnreasonableSteve]

@@EEVblog2 g sensor is also likely for attempted shutdown on falls (like hard drives attempting to park when experiencing 0g)

[@linagee]

Not quite IR cameras. Just IR receiving sensors. (See all the info Allan Yates talks about. Cool stuff.) There is a single IR sensor element in the base station for talking/syncing between base stations.

[@AndrewSkow1]

I was screaming the same thing at my monitor and I don't have a vive (rift here). Why would the big honkin barrel plug be there if it was meant to be USB powered?

[@electronash]

There's an incredible amount of engineering that went into those lighthouse stations. Mainly with how each unit is balanced and calibrated, and just the crazy timings and maths involved in the tracking. They also have a low-speed data channel which uses the IR LED array to convey certain info to the handsets / HMD. I *think* the lighthouses also keep in sync with each-other, so they're not both scanning the same part of the room at the same time?

[@leighwatkin8515]

RE robot warehouse. Search Ocado Andover fire, in Feb this year burned for a week, that's what happens with big lithium batteries and lots of plastic. Only a mile from my house!

[@Milamberinx]

Unfortunately it wasn't the battery that was responsible.

[@0xbenedikt]

That search is actually worth it. Google lists the place as open all year with the photo being the building on fire.

[@jamesharrell4360]

Never really got the chance to say "Thank You Dave." So, Thank You Dave! It's been so many great years of learning from you. Everyday I come home from work and download 12 more videos to watch/(listen to) tomorrow while driving to and from work sites. Only wish I had time to visit the blog as well. There are a lot more words of gratitude I have for you, but you are an awesome busy man. Thank You. Also, I have an old retired NASA impedance bridge I would like to send to you when I can afford it next. :0)

[@WreckDiver99]

I used to think that iFIXIT stuff was over priced tools...then I got a small set for a present and WOW...LOVE IT!

[@michelfeinstein]

I think the spring at the back of the Siemens is to lock it at the DIN rail

[@AxelWerner]

Nothing beats the wireless antistatic wrist!!! It's pure magic! Calms the angry pixies.

[@aamiddel8646]

Made in the EU is what is says. However in practice it is mainly used in new EU countries (in the east of Europe). For instance the main German, Italian or French etc companies still use made in Germany, Italy or France. I wonder why??

[@stephenscibbe1116]

having built scanners, recognised that the Leuze unit could very well be a "1-D" omni-field scanner, able to read standard barcode symbols no matter which orientation of the package/box/item being read

[@OldCurmudgeon3DP]

A "seasoned" electrician once told me... 1 wire: hook up 2 wire: look up 3 wire: screw up 4 wire: drag up

[@DanyIsDeadChannel313]

Wtf man xd

[@chouseification]

Dave, DigiKey is up in Thief River Falls, Minnesota. The highways going there are fine, but it is way out in the country. If you go there ever, enjoy; however it's a pretty small town, so make sure to get lodging in advance. :P

[@chouseification]

sidenote: the Arctic Cat (snowmobile and ATV) factory is right next door - if you make the trip, may want to get a tour there as well. :D

[@Gergus]

Seriously this is what I appreciate about this channel. Some dude got paid to design a thing, so rare and hidden, no one sees what it is but it’s a beautiful design. Some dude spots it and sends it over to Dave, this guy that’s paid to design this fuckin safety relay, who’s already been paid, now gets thousands of people appreciating the hard work that goes into their design. Amazing.

[@stevec00ps]

Had one of those iFixit pouches for a good while now - it's totally invaluable and brilliant quality :)

[@bradnoyes7955]

42:00 Could you use an incandescent light bulb as a impromptu load?, I've used em for that before.

[@DoRC]

The serrations on the path to the sensor on the laser are designed so no reflected light hits the sensor.

[@MaxKoschuh]

great video, as always 🤗👍👍👍 "never heared of FINDER" 🤯

[@thomasleerriem6872]

For testing the Nixie tube driver, you could put your 2 electronic loads in series, both in resistance mode.

[@matthewpeterson5159]

I've had a tour of the DigiKey warehouse through school; used to live like an hour away. Pretty neat place!

[@MrAwyork]

It's saying that the driver doesn't work on Windows 10 at 52:00 into the video, but there's another way.

[@AlexTaradov]

Yeah, Amazon is going to let anyone see their warehouses. I don't think so.

[@linagee]

There are various Kiva videos online.

[@Ccs4646]

aris1234 for free as well!!

[@oskardzida]

In Poland they even have Facebook ads for warehouse tour, for individuals and groups, for free.

[@jamesmdeluca]

Greetings: Maybe the red connectors are Phoenix style not Molex.

[@electronixpall3022]

These are guided relays inside the units. Used to check if the contacts are welded or jammed. If the unit fails it cannot be reset making drive motors, presses etc fail safe. (hence safety relays)

[@pavelionut1649]

Yes, I also keep my open source projects on Tinder.

[@ovalteen4404]

Swipe right to download and build

[@MrPnew1]

@Oval Teen -So RU the vibrating butt hole guy ? ? :) Just joking

[@jcthe2nd]

@19:40 its a HTC Vive virtual reality base station enabling 360° room-scale motion-tracking

[@jonathanhendry9759]

Hm. Why are relays packaged in clear plastic?

[@EEVblog2]

To make it more pornagraphic.

[@MagnusRostedt]

It might be clear so that you can visually inspect the relay. When the switch opens or closes while connected to a load there is arcing. The arcs cause the contacts to degrade, when degraded enough it becomes visible. Look up Arc suppression on Wikipedia if you want to know more about it.

[@jonathanhendry9759]

@@MagnusRostedt That's a good point, but I think lots of such relays are used in circumstances where that level of diagnostic examination is unlikely. Like, if one of these relays in the video goes bad, the repair is probably not going to involve desoldering a bad relay and popping a new one in. They're just going to replace the unit that isn't working. And if the relay failure is being investigated in a FAA/NHTSA-type disaster/catastrophe investigation, they could just break open the relays to inspect the innards.

[@tookitogo]

Jonathan Hendry Well, not all relays are in clear plastic. Many are not. Clear plastic isn’t necessarily more expensive than opaque, either. So we see both.

[@DrakkarCalethiel]

3:20 am, can't sleep and needed new content. Well, Dave delivered me one of my favourites!

[@portlyoldman]

Me too 😊

[@adi331]

I see you are a man of CET as well :)

[@portlyoldman]

adi331- deep in damp cold England...

[@MAYERMAKES]

the relay in the Schneider DIn Rail thingy is perfect for explaining normally open and normaly closed to beginners!

[@jody5661]

For the VIVE base station it is completely isolated from the headset and computer, but it does communicate with the other base station. Also it dose not power over USB, the USB I'd just for firmware updates. It powers with 12v in the barrel jack. You only need one sensor to make it work, but the second one makes it more stable and makes it work when you hold the controller behind your back. There are several sensors on each controller and the headset so it can triangulate with two or more sensors on the headset and one base station. Once it's running it works well, but the software tends to be kinda glitchey.

[@Bodragon]

(4:30) - My guess is that those ridges are for some kind of calibration testing and setup. It looks like you could slot things into them at differing angles. What goes in the slots ? I dunno. Mirrors? Half mirrors? Filters? Perhaps someone else can help me out here. >

[@jlucasound]

You are awesome Dave. Thank You! Love the Aussies and hope to visit your great continent one day. It would be an honor. I learn so much from you. The others are talking about you! (Other Channels). I am sure you recognize them as well. All great.

[@twocvbloke]

Believe it or not, but the "Hook" bit is for hooks, as in screwing hooks into or removing them from walls, took me a few years to figure that one out with ones I've had in various bit-sets... :P

[@douro20]

Or wing nuts, which is what I used them for once.

[@atmel9077]

I would say the HTC device first sends an IR pulse, then a moving vertical laser line and finally a moving horizontal laser line (or vice versa). The HTC vive determines its position relative to the transmitter based on the delay between the IR LED pulse and the laser pulse.

[@chris746568462]

Those Nidec motors probably have hydrodynamic bearings, hence the label for use in one direction only. I wouldn't be surprised if they are similar to HDD motors/bearings, would make sense from a tooling standpoint. Ifixit "Hook" bit is for screwing in hooks 😂

[@mooseteets]

the hook bit is used for driving in eyebolts or hooks. got an ifixit myself after i couldnt find an easy way to use the microbits in a hex set, these sets come with a 6mm hex adapter so it will work in my wera ratchet driver, they are the ducks guts. :D

[@--Zook--]

also work on a wing nut

[@paulmendelsohn5562]

The odd bit was for screwing in eye bolts

[@oliverwunsch1743]

You got 230V AC in "...stralia"? Why not using a plain old 40W or bigger incandescent Lightbulb as a load for the Nixie Powersupply? AFAIK they are fine running in DC ;-)

[@Liam-bs7cu]

Those TE safety relays are awesome (and off the shelf), I recently included some in a design. They have guaranteed minimum isolation gaps in the internal construction for isolated systems "safety". Not cheap though.

[@donerickson1954]

That Schneider relay is a guard door and estop relay for industrial safety gates and such.

[@Gigawipf]

The Nixdorf Museum is amazing. Had the chance to work with them some time ago. If you are in the region check it out. Whole history of computer technology there.

[@mysock351C]

The Schneider Electric relay reminds me of some old General Motors/Delco Electronics PCMs. When you split the die-cast housing the two boards were assembled the same way with ribbon cable joining the main processor and I/O boards together. Made it nice and easy to reset the flash if you did something stupid and locked it up. Now they're using MCM construction with bare dies on the board so they hermetically seal the housing so no joy there in taking it apart anymore.

[@yar0nix224]

they actually call the vive things lighthouses, not base stations

[@kissingfrogs]

HTC seem to use both base station and lighthouse. replacements on thirr website are called base stations

[@rayperigo5575]

Those Finder relays are really handy 0-240AC-DC, multiple timing functions, high load current for their size. Use them all over the place

[@Wenlocktvdx]

You missed the obvious on the website, it says the Windows 10 native driver is all you need and the ST driver is no longer needed.

[@simontay4851]

Well then why didn't it automatically install.

[@popNL]

@@simontay4851 It didn't actually say the driver was missing, the exclamation mark in device manager is a generic warning. Could be any number of things, you have to actually double click the device to read what it's trying to say. He does have a tendancy to assume rather then read. Having said that windows 10 is very dicky when it comes to serial devices and often requires a reboot for them to function.

[@jacobschloss8946]

It didn't work with the inbuilt win 10 drivers because they are much pickier than the linux CDC drivers or ST's drivers for windows 7/8... Working on Win10 support now, it doesn't correctly honor "use interface level class & subclass" and "don't send me line control codes" settings. Even with the CDC ACM bmCapabilities set to 0 it still tries to send LINE_CODING and SET_CONTROL_LINE_STATE commands I wasn't handling - because I told it they were not supported!

[@simontay4851]

Yet another reason to avoid W10. It doesn't even do what its told. It would just work properly first time in XP or W7. I still use XP on my own computers (with SP4) because there are lots of things in the W7 UI that annoy me but i'll tolerate it when setting up systems for other people. I refuse to touch Win h8t and 10. Some examples: libraries, home group, command bar, folder menu bar not at top and not movable, various control panel items are renamed for no reason, no classic start menu, changing detailed power settings requires many multiple clicks, bloated personalisation dialogue (display propeties in XP was fine), network settings are overly complicated, program data/users folders are a mess. Some things can be disabled or changed by registry edits and by using classic shell, some other things can't.

[@StreuB1]

Teh safety relay is for systems that require a Category 3/4 or 5/6 safety circuit. It's all about redundancy, monitoring and cross checking of the circuits and systems. In the even of a failure of a circuit or one that is performing out of spec, the system can see that it's happening and then either note it and take no action because there are redundant circuits in parallel. Or the system can take corrective action in response to a failure. We use these in the xray systems I design for the package industry. All the interlocks and controls are controlled and monitored by Allen Bradley Guard Master safety PLC and Guard Master ancillary devices (contactors, etc). So, all the Mechan mag switches (interlocks) on the doors are all two channel which feed into the guard master PLC, the mains to the inverters are all controlled by guard master contactors, the e-stops all have failsafe early break contacts piggy backed on top of the N/C contacts and both are fed into the guard master PLC. The PLC needs to see the early break and then the N/C go open within a certain time of each other or else it will assume an out of spec condition and trip the safety system. As well if the failsafe contact comes loose, it sees that it is no longer attached to the e-stop and it also trips the safety system. If the guard master contactors monitoring circuit senses the contactor not performing, it will trip; the contactors are also double redundant internally for fault protection. I could go on and on and on. Its good kit and you don't really know what the stuff is unless you work in a field that requires it.

[@SenorBolsa]

someone probably answered but I can't dig through all of it, but the "hook" bit is for driving in eyelets or well... hooks, it just cradles the top of it so you can get some grip.

[@wayneg3127]

The SCHRACK force guided relays in the Siemens device are crap. Lots of issues with those guys in elevator controllers. A real PITA.

[@Spirit532]

I've got a video of these Vive base stations working in infrared slow motion(40kfps). Check it out! I use them both for fun and scientifically - with a bit of averaging(say, 100-1000 samples) _without_ IMU corrections, you can easily get sub-mm accuracy *across the entire room*. This consumer system has AMAZING performance for how much it costs compared to metrology gear.

[@ElNadaInLada]

27:38 i am genuinly interested how this works out - can you actually cross the streams without interference?

[@dcbedcbe]

You can always cross any light beam without any consequences. That's because Maxwell equations are linear. Just like two people talking in a room will not change their voice or anything. Or just like two signals on a cable or in a fibre. Of course, where the beams cross, there can be interferences, but this will not change de beams. Moreover, in this case, there's not interference because they are two different lasers (mutually incoherent light sources).

[@muctop17]

I really enjoy your having fun with industrial stuff ! Great !

[@Robonza]

The grating at 29:30 is called a line optic. It turns a laser dot into a line

[@TheDefpom]

Probably will just flag as not suitable for all advertisers due to the “strong language”

[@MaxKoschuh]

Because of 18:20 "bent over"? :-)

[@Ellipsis780]

The ifixit toolkit lids can be flipped over and put on the bottom with the magnets to get them out of the way.

[@FelixEFX]

Greetings from Owen, Germany! Leuze electronic is just around the corner :D

[@StreuB1]

The serrated area leading into the diode array for the laser is called a light trap.

[@EEVblog]

Makes sense

[@billigerfusel]

Bloody ST. Good and cheap controllers, but I don't like where they are going with their website snd their software. It's a shitshow.

[@Gubelat]

This Finder Timing Relay is often used in Stairwells to control the duration of ilumination.

[@SeanAlcorn]

10:40 is the spring to clip it to a standard 35mm DIN-Rail

[@Robonza]

The serrations are there to avoid multi-path. There should only be one light path. At obtuse angles almost anything becomes a reflector.

[@alien8r33d]

The Schneider unit looks like it was designed with a repair engineer in mind. It would be easy to pop open the case, hook it up to your test rig and probe around the circuit. And, of course, re-assembly would also be quick and easy.

[@dhpbear2]

00:15 - An Altair displayed on its SIDE? (lower left)

[@linagee]

47:52 You keep pronouncing it "Hadu-can", (with a short u), but it's "Hadooooo-can!" (As in Mortal Combat? LOL. I think that's why they put the little graphic.)

[@faytaliti]

Yeah, I can't believe Dave mucked up the "Hadouken" reference. Maybe his age is catching up to him. And it's from Street fighter, not Mortal Kombat.

[@EEVblog]

@@faytaliti I was never into street fighter.

[@hiredgun7186]

on the Schneider safty , the little spring thing is a din rail retainer , friction fit when you mount it to the din rail

[@EricWilliamsNeu]

The irony of the ST download website text about the Windows 10 driver sitting right above the Device Manager window the last minute of the video 😂. ST really goofed that user experience up something fierce.

[@EEVblog]

Easy to miss stuff when you are talking into a camera

[@EricWilliamsNeu]

@@EEVblog the way they have that site set up I can't imagine ever catching that the first time though, camera or not, haha. I have no idea how you can do it all off-the-cuff to begin with, nevermind the finer details.

[@perhansson6718]

@@EEVblog Well missed or not it certainly did not work with the inbox Win10 driver anyway so that gives a point to the Win10 bashers about its fantastic support ;)

[@jacobschloss8946]

To make it worse, it didn't work with the inbuilt win 10 drivers because they are much pickier than the linux CDC drivers or ST's drivers for windows 7... Working on Win10 support now, it doesn't correctly honor "use interface level class & subclass" and "don't send me line control codes" settings. Even with the CDC ACM bmCapabilities set to 0 it still tries to send LINE_CODING and SET_CONTROL_LINE_STATE commands I wasn't handling - because I told it not to send them!

[@jacobschloss8946]

Started getting it to work, can open the port now. Just need to add some code to deal with Win10 oddities.

[@PeetHobby]

26:55 Is that not a white pull strap on that adhesive? So you can remove the adhesive without damaging the board. 😁

[@pmgodfrey]

My sister works in an Amazon warehouse. It's massive. Medical benefits from day one, so that was a plus for her.

[@fenech97]

The serrations are probably for holding and adjusting a mirror. Also they could be as add-ons .

[@WilmerAriza]

The connector that dismount from the relay it is to simplify wiring. You pull the connector, wire your cables and reconnect. when you have 1000 wires in a control panel and you want to replace something is very difficult to pull a relay from a din rail.

[@davidjereb]

Safety relays are used to implement safety-critical functions in machines. See: ISO 13849

[@normswan5806]

We call them force guided relays. Use them on elevators, with limited success.

[@pglick123]

Overcome with the beauty of the design, "I think I need ti go lie down". 9:23

[@12346798Mann]

I just got back from a logistic forum here in Germany and got "clickbaited" by your thumbnail. The Siemens VP for Intralogistic was one of the speakers and talked about their ecosystem.

[@CraigHollabaugh]

Thanks Marty, excellent video. I'm applying for a new job at Butthead, got fingers crossed to meet you in the cafeteria.

[@Daveyk021]

That spring on the Siemens that you were wondering about is the DIN Rail spring, to snap it on to the DIN Rail.

[@karsnoordhuis4351]

That siemens one looks a lot like their plcs. Probably mounted on the same rail

[@helmuthschultes9243]

Memories, my first computer! ALTAIR 8800 with 8080 cpu, 256 BYTES Ram , 4 slot Buss card, big power supply NOTHING else. Kit arrived late 1975, serial no 33! One of the first shipped by MITS.

[@freman]

Given how hard those fuses are to get in australia... any little extra helps.

[@EEVblog]

Yeah, nice touch.