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3Instructables128,333Views85CommentsRussellville, ARJoined July 1st, 2015
Clinical Engineer. PhD, MBA, CET, BMET, MCSE Works with electronic, mechanical, medical, and automotive stuff. Systems Design, Repair, Modification, Repair.

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs2 months ago
    Repair Dead COB LED Light Bulbs

    hi there,I do not think that chip is a rectifier. I think it is an actual LED driver chip.I see one on ebay that might be this one.. Look here on ebay and see if this one lines up with how yours is wired on your board...http://www.ebay.com/itm/2-1000pcs-WS2811-IC-led-Ch...I am not sure if you are where the AC is 120 or 220 either. The driver chips are a bunch of filters and waveform shapers to help the LEDs live longer and operate better with less distorted power going to them.. That ebay item has a pretty good diagram of the pins and circuit setup to look over too.Hope this helps a little..

    I think the link I attached is a color LED controller in stead of an LED driver.. Do a search for "LED driver" and I think you will find it. I had some bulbs which had these drivers for the LEDs to save physical space in the bulb. Digikey has a few here:https://www.digikey.com/products/en/integrated-cir...here is another place that I have not heard of before.. must be a chinese place:https://www.adafruit.com/product/1378Those are what your are looking for though..

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  • mrstan commented on happydupa's instructable Inexpensive Garage Lights From LED Strips4 months ago
    Inexpensive Garage Lights From LED Strips

    Just run the strips in parallel. The same 12 V will go through each pair a little strip as easily as if you tried to put them all in series. Multiple paths will allow you to drive each path individually.

    I did this nearly exactly the same running LED strips under my cabinets in my kitchen. The strips hide where you can't see them, yet provide excellent lighting for the countertops. Very good presentation here for your garage. The light should be excellent since so many sources should give you not much shadow either. Very good instructor bull and very good job.

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  • mrstan commented on mrstan's instructable Toothpaste Transfer Tool5 months ago
    Toothpaste Transfer Tool

    absolutely! And you can put your expensive toothpaste in that does not come in the tiny travel tubes too... That was the genesis of this project actually.

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    That's awesome! It's also very innovative too. It's good that we can overcome problems that we encounter this way, and that just shows how someone can find a solution to any problem. Good work my friend!

    That's completely awesome! I think it's interesting that we can fix a lightbulb now.

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    you might try using the ohm meter to see if the top right and left are connected togehter and same for bottom two as well.. Maybe there are only two contacts, but for some reason they used two blobs on the pads. I noticed there are little black dots on all your LEDs. Mine all have a blackdot if they are bad.. Are yours working you say? I can not see very clearly on the picture when I zoom into it. Might take a picture of the top angle or bottom angle to see the pair of connectors on each end of the chips...

    LEDS do not light up if you put the diode checker on each of them? Do you get DC out of the power supply? Your power supply looks easy to hookup and measure with a meter...

    When I look at your pictures, I think I see a rectifier in the power supply there.. Test it with the diode checker as this is basically four diodes all pointing in one direction. Each diode should read like .590 in one direction and open in the other. You should not be seeing any AC on the LED side.. What you are saying seems to indicate your recfifier has failed and AC is getting into the DC side of the bulb. Check that out...

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  • mrstan completed the lesson Conclusion in the class LEDs and Lighting Class6 months ago
  • mrstan commented on MakerDrake's instructable Broken Plastic Box? Weld It Back Together!6 months ago
    Broken Plastic Box? Weld It Back Together!

    Really great job! Is the welder a Harbor Freight one? I looked at that one online yesterday and looks like it anyway.. Good instructions! I made one for fixing a gas tank with a heat gun that is similar

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    That is the manufacturer's reference to this kind of bulb... not my own. You are correct. These are indeed SMD LEDs.. I chose not to alter their term.These are just cheap home lights from ebay. I am just intrigued that one can repair a light bulb... LOL

    yeah.. They call it that, so who am I do change the terminology.. They are SMD LEDs all in a line.. I did not get into the circuitry because we are just removing dead LEDs and replacing them.

    When I try to drive more than one of these LEDs with my diode test, I can drive one, and posibly two series (can see hint of light), but I find best to only drive one to clearly see the light for test.

    easiest way is by measuring it and knowing what color it is putting out... When I bought the bulbs they stated what chips are on them...

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  • mrstan's instructable Repair Dead COB LED Light Bulbs's weekly stats: 6 months ago
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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    I am notsure if I understood your inquiry.. Are you wanting the source for the LED chips? The last place I bought the LED chips was here on eBay item #291791093809.. Check it out: http://www.ebay.com/itm/291791093809?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    I was actually working on about five lightbulbs at the time I made this tutorial. I had a group of about 10 dead lightbulbs that I fixed in the process of making this tutorial.

    Yes, this is mostly about the Chinese EB bulbs that have the COB technology. This Bob's power supply has the discrete components as well. Some of the lightbulbs from namebrand companies have a lot of surface mount components in their power supply. These lightbulbs are very very simple. That's why they're very easy to work on.

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  • mrstan commented on mikeasaurus's instructable Unusual Uses for Vaseline6 months ago
    Unusual Uses for Vaseline

    I see this message.. I am not understanding what you are saying though.. you mailed me something?

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  • mrstan commented on mrstan's instructable Repair Dead COB LED Light Bulbs6 months ago
    Repair Dead COB LED Light Bulbs

    I did not really get into the electronics talk in this project.. I did not feel it was really needed, but if you have questions, ask me and I can explain as well as maybe others might be wondering the same thing you are wondering as well... be good!

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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)7 months ago
    Plastic Repairs (Gas Tank Example)

    That would probably work good.. interesting..

    How or what you use to hold the patch with is not very important, and I could have used an array of items actually.. the needle nose pliars was there at that time though. Also, the patch was a little hotter than the tank corner, with the intent on keeping the rigidity of the corner intact so the patch was more mailable than the base material.. that might be something useful to know...

    I used a pair of needle noses pliars pointing down dangling the patch piece with the tank in its back so the hole was pointing up and at an angle so the corner broken was up. This allowed me to "drop" the patch shaped like the corner in place. Since the corner was pointing up, the patch simply dropped vertically into place so all I had to do was smooth it and massage it so the two plastics would melt into one. Gotta be careful not to "melt" them fully though or get too hot or plastic will thin out.

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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)7 months ago
    Plastic Repairs (Gas Tank Example)

    might hold it with some pliars or something while it is heating up. You just need to be able to "drop" it on the spot where you want it to be permanently. You can use anything you think feasible to your task to hold the patch while it is heating up. I apologize.. I left out that point because I thought it would be self-evident. I probably should have said something to that point though. I do not wear gloves because I like to have more control and can "feel" where I am dropping the patch.. You can wear gloves if you wish though. I think someone else brought up that point as well. It would be a good idea for safety sake though in my opinion.

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  • mrstan commented on mrstan's instructable Toothpaste Transfer Tool7 months ago
    Toothpaste Transfer Tool

    I used the same procedure to do a couple of squeeze caulk tubes together. I did some caulking in my home to paint the trim and use caulk to fill in cracks between the baseboards and trimwork and my walls. I ended up with several squeeze calk tubes that had a little bit left in each tube, so I put two tips together and squeezed all the surplus calk into one tube and ended up with an extra tube of caulk from "nothing".. LOL This is not limited to toothpaste bottles is the point here. My wife had me make one for her sunblock bottle for when we went to the beach, we reclaimed a free bottle of sunscreen.. look around and you can find other things to do this with if you use things that are in squeeze bottles like that...

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  • mrstan's instructable Toothpaste Transfer Tool's weekly stats: 7 months ago
    • Toothpaste Transfer Tool
      1,897 views
      15 favorites
      14 comments
  • mrstan commented on mrstan's instructable Toothpaste Transfer Tool8 months ago
    Toothpaste Transfer Tool

    I suppose you could squeeze it into a tube using this tool.. Never thought about putting my own homemade toothpaste in one.. I do not see why not though..

    Believe it or not, I hear your exact statement from nearly everyone... LOL

    That would be pretty cool I think. I do not have a 3D printer, but I would think you could really make something crazy with that though.

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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)8 months ago
    Plastic Repairs (Gas Tank Example)

    I need to look up some on those.. I have not heard of this mgun.. I am curious now!

    That is what I used the first time. Vibration caused it to loose its connection though.. lawn mower is too violent of a place evidently for a chemical repair like that.

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  • Travel Toothpaste Refiller - SUGRU STYLE

    I made a instructable just like this one. I did not see this one here! I hope I am not a copy cat.. Here are pictures of mine if you are interested... I welded my caps together using heat so they could not come apart. Sorry to copy your process.. How embarassing!! LOL

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  • mrstan commented on Asadullah Mughal's instructable 3 Watt Energy Saver8 months ago
    3 Watt Energy Saver

    This is an excellent idea to modify a CFL into an LED... I have thought about doing this, but never did it because of being lazy. LOL I love this project!

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  • mrstan followed mrstan8 months ago
      • Toothpaste Transfer Tool
      • Plastic Repairs (Gas Tank Example)
  • mrstan's instructable Plastic Repairs (Gas Tank Example)'s weekly stats: 8 months ago
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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)8 months ago
    Plastic Repairs (Gas Tank Example)

    LOL. That's funny. You could always pull it out and fix it though. Just a matter of initiative I suppose.

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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)8 months ago
    Plastic Repairs (Gas Tank Example)

    patch has been there almost 4 years now with no issues. Thanks!

    I tried two different gasoline tank patch products which always fail after a short time because of vibration and the fact that they are not part of the plastic material ultimately: It is better to fix the problem correctly the first time instead of just trying to plug a hole with a foreign material that is doomed to failure (opinion injected here). I made no suggestion of using gloves: You can do that if you wish, and might be a good idea. I do not, because I do not touch hot things with my hands normally. In an OSHA world you would need to do that. I am just fixing my gasoline tank in my place though. I do not promote or detract from PPE usage, so I leave that to whoever does this kind of stuff, and leave it external to this kind of post... By the way, do you wear protective glov...

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    I tried two different gasoline tank patch products which always fail after a short time because of vibration and the fact that they are not part of the plastic material ultimately: It is better to fix the problem correctly the first time instead of just trying to plug a hole with a foreign material that is doomed to failure (opinion injected here). I made no suggestion of using gloves: You can do that if you wish, and might be a good idea. I do not, because I do not touch hot things with my hands normally. In an OSHA world you would need to do that. I am just fixing my gasoline tank in my place though. I do not promote or detract from PPE usage, so I leave that to whoever does this kind of stuff, and leave it external to this kind of post... By the way, do you wear protective gloves when you cook on your stove at home?.. According to OSHA regulations, you are supposed to, if one wanted to really pursue this line of thought.

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  • mrstan commented on Asadullah Mughal's instructable 3 Watt Energy Saver8 months ago
    3 Watt Energy Saver

    Where did you get the LED driver board? Was it a complete board or did you have to build it from components?

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  • How to Make Your Tooth Brush Last Indefinitely

    My toothbrush splays out if I brush my molars up and down on the outsides I found. Maybe it could do with how you move it when brushing maybe? Dunno. I did find a kind of clip that I put on my brush that clamps around the bristles and actually squeezes them back to being straight so the next night they are all in a row again. Does anyone know what I am talking about? I would love to find another one or two as it was awesome until my wife stepped on it and now it is in two parts...

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  • mrstan commented on mrstan's instructable Plastic Repairs (Gas Tank Example)8 months ago
    Plastic Repairs (Gas Tank Example)

    You are correct and accurate for sure. I was just trying to put a way there someone can do this at home with very minimal knowledge or equipment needs. I did not get into the kinds of plastic or anything like melting points. Its a gas tank for an old lawn mower, so I just did it to be done... nothing really professional there. I just hope it can incite someone to do something new to them.

    Hi dacarls,I did not really get into the exact kinds of plastics because most people would be confused at that level (an assumption on my part). The materials that I used were just stuff I have laying around my place and the tank I was looking at had no markings on it as well, so I just winged it. They were both of the "slimy-plastic" type, so I connected the dots and found it worked. I could make another one that explains the identification system, but I think people would be a little overwhelmed. I understand your concerns, which are justified... but this is a lawn mower gas tank.. LOL. You are correct, I was just trying to utilize what simple materials I had around me is all I was after. I have 70% alcohol, so I used it. I would be much more diligent if I were worki...

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    Hi dacarls,I did not really get into the exact kinds of plastics because most people would be confused at that level (an assumption on my part). The materials that I used were just stuff I have laying around my place and the tank I was looking at had no markings on it as well, so I just winged it. They were both of the "slimy-plastic" type, so I connected the dots and found it worked. I could make another one that explains the identification system, but I think people would be a little overwhelmed. I understand your concerns, which are justified... but this is a lawn mower gas tank.. LOL. You are correct, I was just trying to utilize what simple materials I had around me is all I was after. I have 70% alcohol, so I used it. I would be much more diligent if I were working on car auto bodies or more critical things for sure, I promise. Sorry if I seemed too laxi-daisy here.. I hope it sparks interest for someone to try something new.

    I think it would.. just have to be sure the plastic materials are close to the same kind. Like some of the comments state, there are some numbers that tell the chemical properties of the plastics to guide you... I just look if they seem the same to me if I do not see these indicators.. Hence the "slimy plastic" description. LOL

    no problem... same thing happens to me all the time. I put this on PFF as well and have the same name on pennocks there. I drive an 88GT.When you drive a fiero, sometimes you have to do crazy stuff like this because parts simply do not exist. LOL

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  • mrstan commented on mikeasaurus's instructable unusual uses for Vaseline8 months ago
    unusual uses for Vaseline

    that is awesome! Tell your grandmother thanks from me...

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  • mrstan commented on DrewPaulDesigns's instructable Free Energy from Thin Air!1 year ago
    Free Energy from Thin Air!

    its not common core of course..

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  • mrstan commented on m1k3y's instructable How to lie to authority figures1 year ago
    How to lie to authority figures

    Dictionary should have as defintion of a LIE... See Clinton.

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  • mrstan commented on Lorddrake's instructable Decrystallizing honey1 year ago
    Decrystallizing honey

    Has this been approved by Winnie the Pooh?

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  • mrstan commented on MadScienceHacks's instructable Crack nuts with your bare hands1 year ago
    Crack nuts with your bare hands

    I thought you were supposed to crack the two nuts perpandicular with each other so the crack in on the centerline of the nuts??

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  • Car Pre-Heater (Remote Start Alternative)

    maybe park car in garage?

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  • mrstan commented on Asadullah Mughal's instructable 3 Watt Energy Saver1 year ago
    3 Watt Energy Saver

    As a side note, these will not work very well on ceiling fans because of a circuit in the ceiling fan light connectors which are supposed to remove flicker from incandescent lights by shunting spikes out: The LED lights draw such a small amount of current, the limiting circuit will cause a flicker on the LEDs connected to the ceiling fan because they are either on or off as opposed to indescents which have a time lag for the filiment to cool off and heat up. I called Hunter (company that makes mine for example) and they had me remove the limiting device from inside the light fixture on the ceiling fan so now it works correctly. I think this is not too much to do with your instruct-able (sorry about that!), but if one would put one of these in a ceiling fan, they would think the bulb i...

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    As a side note, these will not work very well on ceiling fans because of a circuit in the ceiling fan light connectors which are supposed to remove flicker from incandescent lights by shunting spikes out: The LED lights draw such a small amount of current, the limiting circuit will cause a flicker on the LEDs connected to the ceiling fan because they are either on or off as opposed to indescents which have a time lag for the filiment to cool off and heat up. I called Hunter (company that makes mine for example) and they had me remove the limiting device from inside the light fixture on the ceiling fan so now it works correctly. I think this is not too much to do with your instruct-able (sorry about that!), but if one would put one of these in a ceiling fan, they would think the bulb is malfunctioning because of the blinking they could encounter.. Other devices are built similarly to keep in mind.. Just sayin'...

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  • Outsmart the Machines: How to Poop in Peace

    Just leave the paper on and will be a landmine for the next weary traveler.. LOL

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  • mrstan commented on Mjtrinihobby's instructable How to open a can of corned beef. 1 year ago
    How to open a can of corned beef.

    Made in Brazil! Hey!!

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  • mrstan commented on fungus amungus's instructable Open a Stuck Jar with a Knife1 year ago
    Open a Stuck Jar with a Knife

    Take jarSmash it on the floor with as much force as possiblepickup broken jar piecesEat contents now on floorclean up mess on floor with mop before mom sees itall done!

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  • mrstan commented on Penolopy Bulnick's instructable Jell-O Marshmallow Fondant1 year ago
    Jell-O Marshmallow Fondant

    I keep it in my tummy... LOL never makes it past consumption...

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