7 Segment Counter v2.0 Tutorial, 3D Printed, STL Files Link 

New Version v3.0 video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LMwjKzrQjHg.html

A potential feature idea is to have carryover output/input so you could chain them.

That has to be the best project ive seen for a long time - bravo. Tempted to make a clock using steppers with it

Finally a handheld way to count to ten

One thing that's cool about this is that it could be built in any time period in history, if the correct shapes were known, and yet it feels so electronic and digitally driven. Most of our technology requires usage of a long list of previously created tech

Compliant springs in place of the bands and a way to link multiple together would be fantastic upgrades. Great project, thanks for sharing! :)

Can be argued as being a bit big and clunky, but this is rather driven by the limitations of the 3D printing and associated materials. The design, however, is absolutely exquisite in its elegance and I truly love it. Masterful !!!!

This is a super impressive project considering that the only non-3d printed things needed are rubber bands and a couple screws. You could probably even design it to be held together without screws. Super impressive. Well done.

I printed this for my numbers-obsessed kid, and he loves it - he was very excited to help me put it together! And thanks for adding the printed screws, saved me a trip to the hardware store.

Given how simplistic the mechanism is, this could very well be shrunken into a very slick mechanical watch. Would LOVE something like this on my wrist.

Mechanical engineering making a comeback of note.

What a beautiful design! Assembly so satisfying that I am going to print this, assemble it and then take it apart and give the parts as a present. Your video serves as the assembly guide.

I love this design a lot! A lot of these highly complex models are insanely difficult to assemble but this is poka yoke heaven! Product design mastermind.

I design, build and fly radio control airplanes as a hobby. As a designer, I appricate how much work you've put in your project. Job well done and 2 thumbs up !!

Wow! I love this, thank you for making the files available for all of us. I immediately thought of using it to make a counter for our sports match, which is currently made out of paper and no one wants to go there and turn the number after a goal. With this tactile feedback, I wouldn't be afraid of it. xD So I basically need to connect two double counters together!

Pretty impressive! Purely mechanical projects are so satisfying.

Thank you for sharing this and making the files available. Very well designed and explained. Great for helping my grandchildren to count!

I think the design of this product is very beautiful, this is how products should be made. Pragmatic and reparable

You are an amazing person for giving this model out for free. I wish you 20 million subscribers and all the wealth in the world. Have a nice day!

I rarely subscribe to a channel. When I consider it, I usually watch a few videos by the person first. Not this time. Instant subscribe. Before I even finished watching the video. This is so cool! I mostly print things I designed myself, but I'm planning to print this. Been wanting to keep track of how many containers of water I drink each day. This will be perfect!

This is absolutely brilliant. The design must have taken ages!

Thank you a lot. This is going to be my 1st project of 3D print as this is so greatly designed and step-by-step guide.😊

Amazing! Now a suggestion: Leaf springs or similar instead of rubber bands, and plastic screws or some nice snap together (with reverse open possibility). So it is 100 percent 3D printed. =)

i am happy I landed on the good side on RU-vid. Subscribed. What you have given me is ...food for thought. I may or may not attempt this...but there are many things I learnt from this video. Thanks a bunch!

I am not sure why anyone would want something like this, but it is very interesting.

Im printing 2 of the 2 segment versions for a competition im holding. THANK YOU!

Fantastic Project , I'm thinking about printing it but first modifying it so that instead of the manual button it's possible to put a stepper motor by controled with AVR Microprocessor, I could then replicate 4 displays and turn it into a beautiful wall clock !!!

I really love this thing, great design! I might have an area of improvement: The „locking spring“ (inner part of the spring) doesn’t have enough force to lock number one into place (after some use). I guess it needs the most force out of all the numbers when counting form zero to one. It worked fine at first but after some use it won’t count from zero to one. I‘m probably going to squeeze some foam behind that spring to increase the force. For a design improvement: Maybe „support“ the spring by making the cam flat or even a little bit concave at the number one position. Of course stiffening the spring somehow would work too. It could also be that I‘m missing something.

What a beautiful Design 🤩

WOW! Why did the RU-vid Gods take so long to show me your channel!?!? I'm printing this and subscribing. Keep these free designs and great videos coming!!!

This is absolutely beautiful - design/theory and execution. Awesome. A mod to allow for servo control (to make a clock) would be great.

F' ING BRILLIANT !! How satisfying is that! Thank you, this is a fun project. Mine is half printed so far.

Very nice project indeed! I suggest moving the actuator to the right side (maybe with a detachable extension rod to the top to keep the existing functionality), and add a recessed "carry lever" on the right side so it can operate a digit at it's right and be stack-able. Of course the amount of digits would be limited by the force needed to turn from 9999... to 0000...

Count down and / or connecting multiple segments would take this over the top. Amazing work keep it up. +1 for subscriber count!

Awesome project. For the inner parts not to be seen, you can use a constant white background as a zero, and hide the relevant segments when counting, using the same case's color.

Fascinating! You have a very pleasant and calm voice, clear instructions and the project seems "doable", it really tickles me to power up my 3d printer right away! ☺ Thanx very much, you got a new subscriber!!!

thanks for making this free and not trying to nickle and dime people who are just trying to have fun building stuff for free not havibng to worry and have anxiety. i really do apreciate youf or not being irrationally greedy

That mechanism is amazing. What a great job!

The most wonderful thing i've seen... Thank u

This is a very cool project! Thanks for sharing - I admire the dedication to making something like this and taking the time to explain the operation.

Awesome job. It is a just mechanical mesmerising mechanism to look at. I ❤ it. As a mechanical engineer who like to play with his 3D printer, I clearly now what my next print will be.

I was thinking how it could be actuated electronically. Wheels turning. Awesome job!

Pretty amazing! You areca master Sir... well done! Awesome design and very clear video. I love how it is all 3D printed. Downloading as we speak

What a great job!!! The only thing I'd change is replace the 4 dome type screws with flat heads to make the whole stack back flat.

Excellent! Subscribed! Thanks for sharing!

Bravo, it is good work and very intelligent.

Beautiful project, congratulations, I'd love to have a 3D Printer to try it, really good stuff, it is wonderful what it is possible to do nowadays with one of those machines, thanks for sharing!

Fantastic work here!

Nice design! Clever cam and gear arrangement. I'll test this at my grandson's hockey games and we'll see how it hold up.

Incredibly ingenious

wow, just appreciate all the work that went into it behind the scene. Only thing I would change is to remove the visible slot, although this might make the device slightly wider

This is one of the most impressive things I've ever seen printed. The level of thought and math behind it is nuts. People don't realize, you can use CAD to do a lot of heavy lifting, but not for the creativity side of actually conceiving how to go about this and knowing what cams to use. Amazing work. A lot of people overuse the word "engineering" when talking about prints and inventions. This is NOT one of those instances.

Really awesome concept, video, and delivery. I’m going to love printing this. Subscribed!

We need a translucent case version to see what’s going on! Brilliant!

I have absolutely no idea what I’d use this for but I want one.

Amazing design and great build video. Thank you for sharing with us.

Awesome work! I need this project evolved into a powered clock!

That's pretty cool, could use something like that when I am loading my dump trailer so I don't overload it with buckets from the tractor.

Poka Yoke: If you offset the key in the shaft out of the center, each with a different amount, you'll prevent wrong assembly of the cam wheels - 6:28

Such a nice video. Impressive design and a very good and full detailed explanation. Thank you!

I just want to click it! Thank you! Imagine one where the numbers count in reverse for a countdown!

I can definitely tell you’re a This Old Tony fan, awesome project!

I really like this! Great job

I would love to see a loud clicky version of your clock with this new design, I just love the sound

You did really well there! The most I like it's the inners, because it looks like it could be driven by a motor. And maybe you didn't think of this, but if you can stack these in sync, (and in parallel) these could be used to replace all the electronic ones seen on almost every shop, so that not electric power would be needed to run these. All the best!

Bless you for making this available.

Incredible engineering. Thank you for sharing.

This is SO great. Beautiful design. How about adding another timing gear that can protrude sideways and power a carry in the neighbouring unit. So we can have 2 or 3 chained for larger numbers. Just brilliant bravo!

That is an amazing project, congratulations. I hope in the future the rubber bands get replaced by compliant mechanism, rubber bands, at least those simple yellow ones used to hold money, which are the only ones I can find in my country, get ruined after a few months, specially after a hot summer, they melt and glue to the object resulting in a mess. Also the screws, 3d printing allows for so much freedom in shapes otherwise impossible to make by any other manufacturing processes, so many interesting latching options, screws almost feel like a step backwards.

Thanks for making this really cool design free. You are a real one for that.

That's a remarkable piece of engineering!

Wish my print worked like yours. :) Thanks for sharing.

This is one of the coolest things I’ve seen! What a cool and accessible project for 3D printing.

Super Nice design! And clear explanation. As a remark I would like to mention that having it fully printable would be a big plus (with compliant springs). Rubber bands do not last that long and need to be sourced. Any ways great project!

Superbe ! Bravo ! Congratulations from Paris. 😊

The mechanism is incredibly, I definitely printing this model, you are a genius

Once again a video makes me wish i had a person that could 3D print things for me. Of course i would pay the material costs and some for their time. Its a shame you dont sell these.

Nice project. You have a new subscriber. I'm looking forward to future projects.

This print is so great! I actually ended up using some hairbands I had laying around instead of rubber bands, but mileage may vary with those hahah. Thank you for putting together the video as well, otherwise I am sure it would have been fairly confusing to put together. I did have to sand some of the cams down, but that's probably just a tolerance issue on my side honestly. Thanks so much for posting this one! It's awesome!

Great stuff! Thank you for going into so much detail. I can't wait to make this!

This is pretty slick. Though on something I designed that had rubber band then spring approaches someone redesigned it to use magnets (reversed poles) to work as springs which was a good idea in the compact space + for a longer lifespan.

Very well done, I could have used these years ago for outdoor sports score keeping.

This is cool as hell. 7 segment displays will always have a special place in my heart, because I had to lead and carry a group project designing a FPGA circuit for a countdown timer driving one of these. Translating that into something so physical, so mechanical, is awesome. Great design.

Definitely adding to my to do list. Awesome stuff. Thanks for sharing! Subbed.

A fantastic project and expertly presented. I will be making one of these for sure to track boxing rounds. The big button will be easy to press with gloves on. Many thanks. Subbed! Cheers 👍🇦🇺😎 🥊

At first this looked pretty cool. Decided to build the dual one as a present to someone who teaches children with special needs - thought it could be used as a teaching a. After a week of tinkering I have come to an understanding that the biggest flaw of this design is the thickness of the followers and cams and too tight clearances between different cams. After several days and evenings of sanding and filing the parts the followers keep getting stuck or not actuating (slipping past the correct cam). If the cams and followers were thicker with bigger gaps between them, the assembly could have been more repeatable for everyone using different printers. I'm using Prusa Mk3s+ and found out that turning on the ironing for the cams and followers helped to make them really flat and with acceptable tolerantces. But still... I can't give this unusable counter away as a present unless I wan't spend the next year finetuning it.

You could add files for the rubber bands as well to be printed in TPU. If you also make the shell snap together, you won't need any extra hardware! 100% 3D printed! Or design 3D printed screws, that also works fine.

i think this has potential to be the most compact mechanical display.

wow dude taht's superb! wishing u luck to a profound youtube channel

its impressive how you get soo much, with soo few parts, and interesting combo of simple complexity. my suggestions are.... 1. silicone bands, since rubber bands degrade pretty quickly. 2. the ability to select a number, not just cycle through till you reach the one you need. 3. use M3, M4, M5, screws, not wood screws, as they are the standard for 3d printing, and lots of other things, and would be more common for people to already have, or find. 4. version with and internal button, or is otherwise hidden, instead of sticking out the top, so you can make a nice neat looking clock with it.

You've earned yourself a new sub JUST based on this video! Can't wait to see what else you've done and will do!!

This is SO. Friggin. COOL!!

Really cool idea! I'll have to try making one one day!

Nice design. Now it could use a carryover to combine multiple modules while retaining only one push button.

This explains so much about how this works. Great video, thanks!

A very impressive design

I like the design, really cool. 3D prints often require a level of fettling to get things working, but after two build attempts with different filament, I'll wait for V3. The mechanism would bind up and fail after a couple of cycles. There is nothing retaining the seg plate in place, maybe a retaining ring between the seg plate and the mid plate? The cam locating pegs on the Segment plate need to be longer so the cams stay in place, I had to ream the cam pin recesses and the gear barrels to fit the locating pegs. The gears need to be thicker to stop them jumping. I understand their purpose from your reply to @ouroborusseven 2 weeks ago, but when this happens the strain of the gears appears too great and they jump, causing the cams out of synchronization, this in conjunction with he push action pegs jumping out of the spring barrel slots causes the mechanism to fail completely. The push action pegs fitting into the spring barrels need to be longer to stop them jumping out, maybe a t-slot mechanism? The push action is too flimsy. I can't see how to do that without increasing the mechanism thickness... Rubber bans, Yeah Nah... I don't mean to be critical, but every design can me improved. That's what testers are for...

I like how the 6’s have the tops

Ain't gonna lie, this is pretty cool. Subscribed.

Level 1000 version. Print in place completely assembled and with 4 digits