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  • Techhlp commented on ChristineNZ's instructable Piano Metronome
    Piano Metronome

    I like your design of having the LED’s on the top where one does not have to look directly at them for the visual effect. Some commercial models as types from Korg incorporate visual beats, “dots” into their LCD screen where all of the other graphics are, not so easy to see without focusing. Now that you’ve introduced the possibility of us building a metronome ourselves, we can customize away. Only thing I would have done differently is to reverse the direction of the knob for tempo, I prefer to turn clockwise to increase, as we would with volume. Perhaps I may also add the option to have the audio be a wooden sounding knock or click instead of a beep, for the traditionalist among us.

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  • The Audiophonic Workbench - Recreate Early Electronic Music With Arduino

    Looking for some advice on the hook up of the pots as this is an audio project, considering only analog performance in this discussion. Is there any disadvantage to chaining or looping the grounds and +5V lines to each of the pots? If instead these cables were independently linked from each pot to ground and V+ posts, would there be an identifiable difference in the noise floor? Seeing how for power distribution this makes a difference as in auto audio installations, considering cable diameter in that case. If any of you for instance can identify with an oscilloscope where these less discernable differences can be observed, as in a reduction in unwanted oscillations, this can be a benefit to our notes for future design. Going further, if screened cables are used instead, then the screen c…

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    Looking for some advice on the hook up of the pots as this is an audio project, considering only analog performance in this discussion. Is there any disadvantage to chaining or looping the grounds and +5V lines to each of the pots? If instead these cables were independently linked from each pot to ground and V+ posts, would there be an identifiable difference in the noise floor? Seeing how for power distribution this makes a difference as in auto audio installations, considering cable diameter in that case. If any of you for instance can identify with an oscilloscope where these less discernable differences can be observed, as in a reduction in unwanted oscillations, this can be a benefit to our notes for future design. Going further, if screened cables are used instead, then the screen can be used for ground, the center leg will be the shielded center conductor and the +5V can be either separately run to our V+ post, or be part of a pair of wires thats screened. So we’ll be using a 2 conductor + screen cable. Some of your reply’s may state there is not much influence at these wire lengths, a topic for a new discussion perhaps?

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  • Robotic Paper Octopus (with Micro:bit)

    That’s an ingenuous method to have all tentacles move at the same time. This will take some viewers back to their days building with metal Meccano no doubt. The use of string is not to be overlooked as a learning tool for articulating, it can be used with pulleys in various configurations or fastened to a shaft as you have here.

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  • 4 Steps MOUSETRAP CAR (1/240 Mechanical Advantage)

    This is an example of using principles of physics to demonstrate how a simple device can be made. It is not to difficult to assemble, therefore it is encouraging for young students to make, and have some success to have their build an operational model.

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  • Custom Characters With Raspberry Pi Pico and LCD 16*2 Display

    Perhaps some of this Pi binary code can be rewritten into sketches that can be run on an Arduino. This, mainly as many of us have Arduino’s and some are living with fewer options for importing / ordering additional parts, well for just about anything this past year. I also have a few 16*2 LCD’s removed from commercial equipment, as well as a shelf of up-cycled supporting hardware and of course, an Arduino.

    Perhaps some of this Pi binary code can be rewritten into sketches that can be run on an Arduino. This, mainly as many of us have Arduino’s and some are living with fewer options for importing / ordering additional parts, well just about anything this past year. I also have a few 16*2 LCD’s removed from commercial equipment, as well as a shelf of up-cycled supporting hardware and of course, an Arduino.

    Perhaps some of this Pi binary code can be rewritten into sketches that can be run on an Arduino. This, mainly as many of us have Arduino’s and some are living with fewer options for importing / ordering additional parts, well just about anything this past year. I also have a few 16*4 LCD’s removed from commercial equipment, as well as a shelf of up-cycled supporting hardware and of course, an Arduino.

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  • Techhlp commented on AdrienR's instructable Affordable Camera Slider
    Affordable Camera Slider

    Just an idea, but for those who want to get away with using electronics not utilizing a controller, how about making a ramp-up / ramp-down motor control circuit. This will slowly increase the speed or decrease as needed. The user control can be a DPDT toggle switch with a sizable paddle for convenience, positioned horizontally for left or right swing. It all depends on each individuals needs, a ramp rate that is not adjustable may not be flexible for each sessions shoot, the resulting video may appear too monotonous.Do let individual creativity flow.

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  • Build a Left-handed Bass / Guitar From a Right-handed Kit

    I’ll send this link to a guitar builder friend of mine, not on Instructables, ‘yet.’ I think he’s right handed, but with his collection of rare and some vintage pieces he has, a suitable player is sure to benefit.

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  • Easy-Build Handwashing Station, With Videos

    This is an excellent idea, especially considering the present world status affecting so many states. I like simple affordable solutions like this so others are encouraged to give it a shot. I’ll very likely make one or a few, with the slight change of using a wheeled pulley where the cord hook loops for the direction transition. I used this method in a catamaran once and it lasts really long.

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  • Techhlp commented on randofo's instructable Easy Zoom Quit Button
    Easy Zoom Quit Button

    I also agree with you that a one touch is an extremely practical solution. There are other Ables that added a few other keys such as volume and webcam On/Off etc., they turned out to resemble one of the home studio trigger button percussion kits, but suitably labeled you wouldn’t want to be without it.There’s a entire study on ergonomic efficiency of dedicated levers, switches, knobs etc. where conventional multipurpose devices, (keyboard/mouse) are already right in front of us.

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  • How to Make Pirate Rings Out of Polymer Clay

    Hi Nikita, I think you answered by saying the paint holds up ok through flexing. Oh no I wouldn’t want to suggest to crafters to break the budget to make large pieces, staying with smaller items such as rings, I may have been inaccurate with my description. For larger areas I agree with you using Worbla or similar with the inside lined for comfortable wearing. I included Thebra as there is a walk in craft store where I am that sells it, that store also sponsors a local Cosplay competition, or used to before 2020.

    This gives me some ideas considering flexible vs rigid. Flexible polymer clay is ideal for allowing movement when wearing, I’m wondering how paint will hold up without cracks though. How about some designs using the polymer clay where it fits you but incorporating a harder amulet etc which dry’s hard, I’m thinking about using Worbla or Thebra. One concern is their method for shaping, the clay is moldable before heating, Worbla and Thebra are sold as sheets and become pliable for shaping when heated, then they cool hard. They may have to be prepared separately then joined after, so many possibilities.

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  • Easy Joule Thief Circuit

    I can’t help but notice the perf board is from Radio Shack, I’m sure I have one of those very types in my box / drawers of hardware, also the types that replicate the format of solderless proto boards. The idea was, if anyone put the time in designing and tweaking a design, ‘solderless breadboard,’ until it’s just the way it ought to be, simply transfer the project component for component using the same layout. Then solder for permanence.Keep up supporting the Radio Shack faith.

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  • PAD HERO (Guitar Hero Using Arduino)

    Love it that you made an interactive device that is so intuitive to follow and use. This can be categorized right along with the number of existing musical learning aids that enhance our cognitive response. Great work all of you.

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  • International Space Station Tracker

    That’s an incredibly detailed instruction, there’s so many areas where I am immensely impressed. The mechanical engineering is spot on, I especially like the bearing fit and threaded center, that’s textbook.The 3D videos on stages of assembly leaves me surrendered, you win, I couldn’t begin to attempt such an undertaking. I’ve watched several scientific and technological videos in the past and am especially keen on the several “Transtel” series episodes, your video clips remind me of them.Be not so concerned on the wish list extras, you can incorporate some of these in your v 1.1.

    I know someone who built an antenna receiver to capture frames from an orbital weather satellite back in the 90’s, but he had to manually time the flyby. If only one of these was available, would have automated captures, perhaps even rigged an unattended set up.

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  • LED & Sound Bending Machine

    Highly agreed, that original race game doesn’t make the grade, I’m often in favor of up-cycling around this nature of game. Except for 70’s LED classics which I strongly support should be reserved for preservation. If I found one of these or similar the fresnel lens effect would also have caught my eye, the possibilities for back lighting effects are endless. I’m sure I’ve come across past Ables using similar builds around other vintage sound chips if they can still be found, as in the; SN76489, SN76496, SN94281, and AY3-8910. Great to see the creativity distributed.

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  • Simple Inexpensive Wireless Using Any IR Remote, Even Older/Discarded Ones

    Another one of these; Why didn’t I think of these? projects. We probably all have orphaned remotes lying about, some former device remotes are the mini slim types as in those bundled with:Mini component stereosAuto dash radiosString rice lights or other decorative stringsOlder PC CD drives from Creative LabsSome laptops once PC card slots went out of fashion, some models repurposed the slot to house a multimedia remoteThese slim remotes pop up all over, especially in Arduino kits and companion assortment kits for any controllers.Some IR receivers that come to mind are the TDA8160, TDA3047 /8, T2525 /6, MAXQ617.

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  • Circuit Board for Making Freeform Circuit Sculptures

    These are the type of projects I have been keen on from my very start in electronics. My change wish for another variation though, would be to have the LED’s slowly increase in brightness to a determined max then fade and return through a cycle. Maybe 3 seconds up 3 seconds down, that type of speed, your iable gives me ideas though.

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  • DIY LED Studio Ring Light

    If you or anyone is looking for translucent sheets, this distributor had a sale on recently, they may still have at sale prices:Luminit LLC1850 W. 205th St.Torrance CA 90501(310) 320-1066sales@luminitco.com

    If you or anyone are looking for translucent sheets, this distributor had a sale on recently, they may still have at sale prices:Luminit LLC1850 W. 205th St.Torrance CA 90501(310) 320-1066sales@luminitco.com

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  • Techhlp commented on megardi's instructable Think-a-Tron 2020
    Think-a-Tron 2020

    I will keep an eye out for that, thanks. I also want to mention to anyone out there that has a similarly motivated project for a desktop pinball machine. A long wish of mine is to replace the mechanical score rollers with 7 segment LED’s on the Tomy / Parker Brothers Atomic Arcade Pinball, or the updated 3 flipper Astro Shooter from 11 years later. As a kid I watched the score counter increment and wrote the entire sequence, the 3 least significant digits move together as one cylinder. I’m sure an Arduino can be interfaced to replicate the scoring exactly. I’ll preserve the mechanical bumpers, rollovers etc and ball counter but change the mechanical score, with the Astro, there’s a high score thumb dialled counter display above the active one as a player record. I’ll replace that one too…

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    I will keep an eye out for that, thanks. I also want to mention to anyone out there that has a similarly motivated project for a desktop pinball machine. A long wish of mine is to replace the mechanical score rollers with 7 segment LED’s on the Tomy / Parker Brothers Atomic Arcade Pinball, or the updated 3 flipper Astro Shooter from 11 years later. As a kid I watched the score counter increment and wrote the entire sequence, the 3 least significant digits move together as one cylinder. I’m sure an Arduino can be interfaced to replicate the scoring exactly. I’ll preserve the mechanical bumpers, rollovers etc and ball counter but change the mechanical score, with the Astro, there’s a high score thumb dialled counter display above the active one as a player record. I’ll replace that one too and have them count together but retain the high score until a separate reset button under the case or power cycle clears it. I just happen to still have my original Atomic Arcade, its flawless with the original box, so I’d dare not touch it. Never opened the chassis. So, if anyone knows of one out there that no longer works, I think you see where I’m going with this one.

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  • Maglite 2AA Conversion to a White LED

    When I started to read the article, I was gearing up to suggest close measurements for the difference in focal length, similar to how several probably by far most aftermarket car LED headlights fail this. But you nailed it, kept a T1 “3mm” LED up far enough to where the incandescents filament would’ve lined up, this is often missed during retrofitting. I bought a Nite Ize® LRB-1W 3.0V for a 1998 2AA mag years ago, but this patented design limited the range it could be focused. The ring couldn’t screw down very far so accustomed to the range I had before, the cap just comes right off! Easy to lose at night. This is even with the bundled replacement reflector that compensates for the additional thickness of the Nite Ize, focal range difference etc. I think I’ll use your build as soon as I c…

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    When I started to read the article, I was gearing up to suggest close measurements for the difference in focal length, similar to how several probably by far most aftermarket car LED headlights fail this. But you nailed it, kept a T1 “3mm” LED up far enough to where the incandescents filament would’ve lined up, this is often missed during retrofitting. I bought a Nite Ize® LRB-1W 3.0V for a 1998 2AA mag years ago, but this patented design limited the range it could be focused. The ring couldn’t screw down very far so accustomed to the range I had before, the cap just comes right off! Easy to lose at night. This is even with the bundled replacement reflector that compensates for the additional thickness of the Nite Ize, focal range difference etc. I think I’ll use your build as soon as I can figure how to get the battery cap back off without damaging the aluminum case, I left the Mag in the car for a few now the back cap won’t turn, it’ll be a shame to ditch a mag I’ve kept with hardly a scratch for 22 years.

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  • Techhlp commented on megardi's instructable Think-a-Tron 2020
    Think-a-Tron 2020

    The original has that “..it looks like a futuristic show piece..” look, considering the Jetsons era it was released in. A clever implementation of accurate mechanical intricacy. Your implementation however, is by far a fitting example for today, with actual electric switches, LED’s and QR codes. It shows how far we have come, and will no doubt be more encouraging for younger minds to get some entertainment out of it, not to forget, educational.

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  • Discrete Chain Link Oscillator

    No problem at all, I like to see various methods used. A neighbor used the etch resist pen a while back when I was 11 and the first board I was involved in was made. My 5th grade teacher designed the circuit, my neighbor etched it and soldered salvaged and new parts, the year assembled and our initials were also etched. Embarrassing how long ago that was.As for the link, they maintain a close customer relation, they also do limited production runs. Goes that extra.

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  • Techhlp commented on andrei.erdei's instructable Fiber Optic LED Lamp
    Fiber Optic LED Lamp

    I could stare at one of these each night! My only pref would be to set it on a slow transitioning fade through colors which is ideally suited for a family or entertainment setting. I’ll probably also bias code to showing more blues, reds and purples, that’s only me. Don’t know how much entertaining we will be doing in the future, but it’s an extraordinary appealing eye catcher, perhaps have it in a window set to my slow fade and allow the neighbors to enjoy. Its distanceing thats recommended isn’t it?

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  • OneBox - Control Zoom, Meet, and Teams Online Meetings

    The gears are turning, this gives me ideas, I’m considering using a junked laptop numeric keypad. You know the USB type that accountants etc use if their model isn’t equipped with an extended numeric. Somehow find where the matrix is raw from the keys, relabel, rewire and make it a foreign language one-press for certain keys when using a US keyboard as; á, é, ñ.

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  • Discrete Chain Link Oscillator

    That’s an intricate method for boards and gives fine looking results. My early years taught me not to pursue going any further than the perfboard option you gave as a 2nd choice, for now I’d be sending my designs to Advanced Assembly for fab: https://aapcb.com/blog/ceo_2021/?utm_mediumBut for those like yourself that have the talent to take it further with a CNC, keep it up.

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  • Techhlp commented on Gautchh's instructable Modded Casio F-91W
    Modded Casio F-91W

    This is just what I was considering with my DW240. Only as that’s much older I’d have to figure a way to replace the incandescent lamp with an LED, correct current and voltage. I reversed the polarizer in a Casio calculator I used in college, but it was easily removed, only to orient opposingly to have a reversed display. I actually did cause some 2nd glances.

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  • Creating Easy Glass Circuit Boards at Home

    C'est une excellente application de l'art et de la fonction, rappelez-vous à tous que STEM / STEAM est particulièrement recommandé pour encourager les jeunes esprits. J'ai vu pour la première fois de l'électronique soudée à Disney World, pas de PCB mais monté dans ce qui semble être une carte dans un cadre en bois. L'appareil était ce que nous appelions une boîte «Ne rien faire». Il n'a pas la forme d'une boîte, mais vous savez ce que nous voulons dire. Le circuit exposé et à vendre n’a fait qu’allumer, puis éteindre une lumière au hasard, c’est tout. C'était un éclair occasionnel lent donc pas trop distrayant.La seule chose que je ferais différemment est de suivre l'une des méthodes des techniques industrielles, au lieu de couper les broches inutilisées, d'avoir une trace de 2,7 à 3,4 mm…

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    C'est une excellente application de l'art et de la fonction, rappelez-vous à tous que STEM / STEAM est particulièrement recommandé pour encourager les jeunes esprits. J'ai vu pour la première fois de l'électronique soudée à Disney World, pas de PCB mais monté dans ce qui semble être une carte dans un cadre en bois. L'appareil était ce que nous appelions une boîte «Ne rien faire». Il n'a pas la forme d'une boîte, mais vous savez ce que nous voulons dire. Le circuit exposé et à vendre n’a fait qu’allumer, puis éteindre une lumière au hasard, c’est tout. C'était un éclair occasionnel lent donc pas trop distrayant.La seule chose que je ferais différemment est de suivre l'une des méthodes des techniques industrielles, au lieu de couper les broches inutilisées, d'avoir une trace de 2,7 à 3,4 mm à souder. Oui, je sais que c'est plus de soudure sur ce verre délicat, mais cela ajoute à la résistance mécanique.

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  • BIG Alpha-numeric DISPLAY

    A brilliant example of designing externally to conventions. I came by a bunch of the Hitachi HD44780’s that were out of time and attendance clocks, was wondering how I could use these.

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  • Techhlp commented on -BALES-'s instructable Luigi's Mansion 3 Costume
    Luigi's Mansion 3 Costume

    That’s an amazing amount of work Bales, with quite a lot ofdetail. At times I thought I might have crafted something differently, as inhaving both internal and externalcylinders transparent / translucent, then you actually did it. No need for my input,lol.

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  • Techhlp commented on BrittLiv's instructable Nerf Light Gun Controller
    Nerf Light Gun Controller

    More along the lines of, “not having access to 3D printing”, you also suggested using card and hot melt glue etc. We’re all different and I have a thing for durable splash proof materials, so without 3D we can use Thibra or Worbla, have a look up, really neat. I prefer another option where ordering stuff is recently somewhat limited, how about up-cycling spent printer cartridges, that’s right, I can hear the endless possibilities from you creative types straight away. So many shapes are ready made for cutting and fitting, do allow your mind to travel, both ink and toner casings can find their way into your creations. Made-for-plastic glue can be used, small bolts, nuts, whatever you can get your hands on for assembly. It can be messy, but us builders are used to that.

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  • Awesome job. I always wanted to do this, “had I had the room”. OculumForamen stated my thoughts exactly, star wars is a decent theme but my individual preference would be star trek, or fallout for a more recent genre. Now I know too how to fab the steel beams, MDF, and the in-structure readouts, my specialty. Like nothing more than building displays that serve as a prop and no more. I like the portal on the wall, like to implement one on the floor, it gets to people as that; wow, even there?, how'd you do that?I was in 6 million dollar man's time back then, ‘a kid’, even had the rocket/tune-up station, still have it. Didn't miss many episodes. Look forward to seeing your completed build.

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  • Hi bekathwia, was thinking of a door authentication solution, ‘hobby’ for some time now. I have a membrane just like that except a 12 and not a 16 from a surplus store. Can I use that instead or do we need [A, B, C or D]?

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  • For a while now Icollected them for any possible parallel work. Like converting a clock radio toa car clock. Junk the transformer, regulate the autos 14.5V to 12V, connectwhere the transformer was to ignition. Regulate 14.5V to 9V, connect where the9V battery was to constant power. Use a much smaller LED display likefrom an old DVD player, use ribbon cable to the display. (The clock radio maybe too big to fit close, use a longer ribbon cable)

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