Mechanical Laser Show

[@williamosman]

This is a really cool project!!

[@jornprenger7926]

omg why are my favourite youtubers in these comments, william, your awesome. how did you build your laser cutter?

[@JMMC1005]

He used a laser.

[@louisgilliland6617]

hi will

[@foxrumor]

You are the best youtube person.

[@bucurionutrusu3260]

Keep it up with that Scooby shit, William//// I love your project videos, great, great job you and of course Camera John

[@murdockscott]

We just got a 3D printer a week ago and I have been trying to find projects that will justify it as a learning device for my son beyond simply learning about 3D printing. Well, this is a slam dunk! Good lord man! He is going to LOVE this! Thank you SO much, I will be sure to check out everything you have uploaded. Keep up the good work.

[@make.anything]

What an awesome project! You should laser onto a UV reactive surface so the images glow ;)

[@xdgfxr]

you do love your uv :)

[@make.anything]

Brandon Gloeckner yuupp 😁

[@xdgfxr]

Devin Montes responded to my comment and I think my life is complete

[@andrejoseph3630]

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

[@andrejoseph3630]

Hey Devin make a video doing this

[@NiteSaiya]

The mad scientist we were warned about by all those cartoons growing up.

[@Bilby3DPtyLtd]

Fantastic project for STEM classroom - well done guys

[@qwerty3663]

You should separate the gear from the profile for the cams, making them two pieces each so you don't have to keep printing and cleaning gear teeth. It's much easier and faster to make a cam with a square shaft hole than with an integrated gear.

[@skylerockspecial]

qwerty true!

[@nopro_films]

man, the math behind your project is mind blowing! You made me learn something new!

[@billymanilli]

See, kids... The math you learn in school CAN be useful one day! VERY COOL BTW :)

[@davidhomer1632]

Wow, I expected this guy to have like 200k subs from his detail but when I went up to see his sub count a bit over half way through the vid I was surprised to see that number, please share this guys KZbin channel with friends, he's an awesome designer

[@madjedi2235]

This thing is so cool... it’s such a simple idea which just makes it better

[@farrenyoung]

Very nice work. I'm looking forward to playing with this project. Thanks a lot for sharing the code and all the details behind it.

[@chinmay_tamhane]

oh boy that's a lot of maths involved..... hats off to you.... :)

[@JorgeGamaliel]

Congratulations. Excellent work!!. Trigonometry, parametric equations, visualization of trajectories in R ^2 .

[@NotSoFr0sty]

i liked that motion tracking you put in there

[@vinny240sxdba4]

I love people that have so much free time on there hands they make this bad ass shit

[@joseincer728]

Best of Luck Evan, thank you for the model...

[@TURK_182]

I'd love to see how complex of a pattern you can make! What a great project! Nice hands btw=)

[@preddy09]

This is an amazing project for many reasons. It's got creativity, simplicity in making it, yet clearly has its complexity in designing a certain principle you want to explain. This is perfect as advanced tutorial projects for future engineers. I subscribed in hopes that you'll be doing intellectually stimulating designs such as these. Way too many tech channels out there that do silly projects with little intellectual complexity.

[@kentvandervelden]

Very cool project, and interesting math (here from Hack-a-day)

[@abhishektiwari2101]

You explained everything! This is amazing, I hope you didn't lose anything (money wise or sth) because of this. It was unbelievably amazing, can't thank you enough for this!

[@francobianconi9227]

I love that auto captions say [applause] at the beginning, it is not correct, but suits the video.

[@sqidgery9960]

Bro, you got Devine AND William Osman commenting, that's awsome! Great job!

[@fredomeireles]

That is inspiring and tells alot about how they make those laser shows! Cool vid.

[@jambrand3708]

3D printing going places. So many applications

[@TaiViinikka]

Good luck with your post-software career! That really snuck up on me and I had to laugh. Not that you can't do it! I just wasn't expecting it.

[@thiccboi258]

I like how it looks but it's loud but super cool

[@Fifury161]

Awesome maths lesson! Nice work, I want to see more videos now!

[@Cameron_Mind]

Amazing, you’re awesome for keeping the plans free aswell, cool dude

[@agepbiz]

Such an awesome project! I love it, although, the math did hurt my head :)

[@SineEyed]

That's a super nifty gizmo ya got there! It's noisy as hell though - is that the gears making all that racket or the cams against the laser casing? A little bit of grease on the gears would help. Or securing as small strip of velvet like material to the casing where it contacts the cams might quiet it down a bit too I think - maybe sandwich a little slip of foam in between. Sidenote: I've never been to a Maker Faire but have been meaning to check one out for a couple years. Maybe I'll see you down there come May. Keep making awesome stuff!..

[@ToddyBeer69]

Looks like old technology but cool idea for persistence of vision. I like it👍

[@smileclinic1883]

dude this is such a cool idea I admire all the time and effort you put into this!

[@Build-It]

Thanks! If I would have known how many people would eventually see it, I would have put even more time into it!

[@la-ia1404]

If only I could grasp these math concepts better.

[@grahamwerner8386]

came for the laser, stayed for the hands

[@199NickYT]

What happens when you use mismatched inserts? I want to see half-batman/half-star!

[@Na16Patman]

Incredible video! I loved that you went into the details of the creation and even how you did it. Hope you see more ideas from you

[@meowthchu7307]

we need bigger lasers and we have the bat signal XD

[@zubiez.524]

For anyone interested in a non-geared similar device, try to backtrack an old "Amateur Scientist" article in SciAm (probably c.1980) for building a laser oscilloscope using two speakers and front silvered mirrors. I built one using some small 4 inch speakers from Radio Shack and small compact mirrors. The article describes some of the optimizations involved but the crux of it was to reflect the laser off two orthogonally mounted lasers on the speakers, controlling the x the other the y deviations. This coupled to the a laser and 2 wave generators (one for each speaker) yielded an interesting graphics projector. I suppose with careful construction and digital wave generators to fine tune the displacement waves, you could generate a similar effect.

[@SoaringMoon]

The whole video I was waiting for you to combine gears outside of the same set just to see what would happen.

[@frantisekzverina473]

I'll have to watch it again when I'm sober. Don't go anywere

[@MrTechnic]

Hlw bro great work .keep up the good work

[@DangerDarf]

Could be worth modeling helical gears instead of spur gears, Would make the device a lot quieter with less vibration - presumably producing a cleaner image

[@Yairoo]

Amazing! With a few modifications, you should be able to turn this into a drawing automata.

[@plasticochido]

Genius! Sooooo cool! Thanks for sharing and explaining in that way...

[@CaptainDrill]

This project is FREAKIN' GOOD! Absolutely Loved It! :)

[@johanponin1360]

Beautiful. Polar encoding of uv equations

[@FeelMyLance]

How did you know where to space the points on the path of travel sketch? Looks like you compensated for highly accelerated movements at the vertices by placing more points near them. Was there math involved in this?

[@Build-It]

Great observation! Yes, I spaced the points such that sharp angles where taken slowly and straight sections go faster, with finite acceleration. I just did this part by hand, no math involved. Automating this could be a great future feature.

[@satanmessenger361]

I love your idea it's keeper then buying a clubmax 3000 Loved it

[@austinharlan7970]

Just graduated hs and only understood 76% of that math XD! Glad you know your stuff dude ;D

[@me323me]

I don't really do any math that requires me taking off my socks but this is fucking rad.

[@portdunco]

2:45 how is it we know the coordinates of the cam center points and the laser point? And the base radius of the cam that places the laser at (0, 0)? I'm not understanding how you had enough information to make these calcualtions.

[@samykamkar]

Awesome!

[@anasarkawi4331]

first security research then hardware hacking now.... engineering?

[@walkerharris2662]

That is awesome,i downloaded it and printed it from thingiverse

[@Goejii]

I love gadgets, lasers and maths, so... take my thumb up !

[@aidanner]

Indeed this is called (in italian, i don't know the equal in english) "strappo" that translated literaly means "toring up" and is the 4th derivative of the space in physics. This is really interesting

[@StarSaphire9981]

Did not understand, but loved the aspect of it :)

[@iBuyNewStuff]

Hey there Vertle Vert, love this video! This is the exactly the content i love and try to make on my channel. Coincidently, I have also recently got a 3D printer, would love to try things similar to this!Great video, keep it up.

[@17-.]

imagine the tedious designing of the discs. well done!!

[@ImaginationToForm]

Pretty neat. I understood about 1/10 of the math I think. Other 9/10th made my head exploded

[@GiatrosDys]

Custom-made spirographs, possibly improved with phosphorescent surface to lengthen time that images stay up for more complicated designs requiring a lower speed.

[@abdallaalsubaie1280]

Your idea should be shown in the next Batman movie for the bat signal

[@homegamerengineer3747]

Awesome Video, great explanation. I hope the hand modeling goes well! Thanks for sharing!!!

[@shortyspcchannel7777]

i am currently in my 2017 summer break and i end up watching a guy do math godamnit

[@todbot]

Super cool! And great descriptive video. Hope you make more vids!

[@lowgrs1]

Great video. And Ha on the hand modeling. Nice

[@pinaz993]

So, as a software developer, have you developed something that will take the input path and output the path of the cams? As far as I could see, all of that was programmable, and it didn't look so hard. Then, after that, it could do some simple math and alert the user if the cams are concave, so that they can vary the size of the input path accordingly. (Or, the program could do all the work for you, and vary the size until it finds the largest it can manage while still maintaining convex cams.)

[@Build-It]

Yes, check out the code here: github.com/EvanStanford/cams Currently the code is very simple and does not deal with concavity at all. It also has no UI. Those both could be future features.

[@squareoctopus]

Hi! Tried to build the go project with no luck. I don't know any go, so maybe I'm misinterpreting how it should be used! Should I expect an executable file or is the project supposed to be used as a library? Any help would be greatly appreciated.

[@sweburner]

Love your alterior motive! :)

[@peterh8441]

Love it

[@alhdlakhfdqw]

awsome project and explainantion Evan great job man!:) Thank you

[@joeynuggetz]

The math portion might as well be some ancient alien language that someone dug up on Mars. My brain cannot process this.

[@CenterpointConnect]

Great job! Any suggestions for one of the shorter laser types? Or will I require a longer, pen style laser?

[@reggiep75]

This was epic! A real great project and if possible get the concept or design patented if you can. I've never seen anything like this and it's great. A drill or electric screw driver would be good to incorporate so that you could power as many devices as you wanted connected to a large platform!

[@wktodd]

that is a great idea for a toy. have you thought about approaching any of the big toy firms?

[@iamamazingist]

this is really cool... great design...

[@florb860]

God I never knew drawing a star was so complicated

[@mini_ko]

Smart and elegant - I love it!

[@fred-9929]

Great project! Is there a way to graphically build the cams? We would like children to be able to build their own, based on a figure they would like to project...

[@TanerNilluhktaf]

Great design! In your math explanation portion, I think Kx should be equal to just 2pi/n*i. And when you get to those expressions for x and y, how do you input original coordinates to those final two equations? Do you have full math explanation somewhere written you can share?

[@Radit204]

Great design! You sir, have earned my sub

[@Tampajoe77]

good luck with the hand gig

[@firefly255]

You're a god...if only my math is as good as you

[@krunkel39]

Holy lasers, Batman!

[@bettercallprashant6695]

Thanks for informative video Evan. Good luck

[@EslamsLab]

awesome what about running it with 2 servos

[@GroovingPict]

I felt there wasnt enough noise, can you maybe make it louder and noisier? thanks

[@notserpify]

this is so cool! seems we could write a program to do the math and modeling. really impressed at the Batman one. I bet one could design one that sweeps across and is a walking animation and at a set distance would look great. would have to be turning even faster though

[@speedoguns247]

very impressive! love the concept!

[@morganfreeman1906]

I think the math was a little overcomplicated. you just have two radii plus the width of the laser chassis. You always know the shorter of the two radii will cause the laser to sway in the x direction of the cam with the shorter radii. Then you just have to map the cartesian xy coordinates of the desired shape to the cam at incremental radian lengths. Basically two right triangles and the cam radius is each triangle's hypotenuse so you can solve the whole thing without any trigonometry.Just recycle things you already know about the problem and rearrange the pythagorean equation, then map the cam's radius with polar graphing. What you did is still really cool though.

[@hydrochlor]

0:00 That's perfect to summon the demon

[@laszloluda2487]

I said this too to him and he said:i dont summon demons

[@crazy808ish]

Wow. Okay, I generally hate math, but seeing how the math made this possible was pretty cool!

[@Gnudel]

Such a neat project! Really cool :D

[@One_KHRN]

It's so amazing ! Love it !! Liked 👍🏼 😃

[@ChaiHaoran]

That was pure genius!!

[@maxistarling]

Can you make a software that transforms drawing into that matematical thing and all the other parts of the project?

[@chook100]

What are the tempatures to your 3d printer? For the baseplate and nozzle.

[@sidraket]

Make sets of cams for each letter, make modular laser+cam holders that can be linked up in a row and driven by one crank. You now have a set type laser text projector. Spell out words, gets strong lasers and beam propaganda at walls in public places. All sorts of possibilities.

[@jbGraphics_]

clever setup, awesome project

[@MrPuff1026]

wow, great hands you should really consider hand modeling!!

[@adeeperbluegreen]

Really cool! Great Design

[@Rubikari]

Awesome, although I am more impressed at the intro, how did you make the text stay relative to the point of view? amazing.