Really creative stuff. I liked seeing the gait of the ant. I never thought about it, but I would have assumed there were more than two steps.

@SergeantShrimp1

7 жыл бұрын

Practical Engineering hey man, I love your videos! You and applied science should collaborate.

@evilplaguedoctor5158

7 жыл бұрын

I had that same thought, I've seen robots move like that, but I always assumed that was for simplicity's sake.

@ExaltedDuck

7 жыл бұрын

Biological systems are often excellent at finding at implementing efficient solutions.

@aserta

7 жыл бұрын

EvilPlagueDoctor, most robots that have more than a pair of legs are based on nature. Why bother designing your own gait when there's something much better built already in working condition for you to copy. Wish i could remember the fellow who made insect robots that mimicked them almost perfectly. Simple things, that was almost two decades ago, so nothing smart, but they worked really, really well.

@tzimmermann

7 жыл бұрын

+aserta You can also let the robot learn its own gait, we had people doing that in the lab I used to work in. Possibilities are endless, there was a team whose goal was to evolve a robot geometry in parallel with gait generation in simulation, then they would 3d print the robot parts, assemble it and transfer the controller trained in simulation to make it work IRL.

I'm only a few seconds in and already complete wow'd! Awesome!

I can't believe I've spent 5 years roaming the youtube educational space, and I've never once been recommended this channel before 2020.

Out classing the slow mo guys at their own game, well done.

@aserta

7 жыл бұрын

It's not like Gavin invented slo-mo on KZread, some of us were watching bacon and popcorn sizzling here long before he even heard of YT.

@QuietDuplicity

7 жыл бұрын

He didn't say the Slo Mo guys invented slo-mo on youtube, he does have a point though. When most people think of popular slow motion video on youtube you can be pretty safe to assume that they're thinking of The Slo Mo Guys, maybe Destin too but not as common I've found. What he was referring to is that Ben is bringing something new to slow motion on youtube with his engineering knowledge and this high speed dolly. I mean the Slo Mo Guys could have done something like this a long time ago but to my knowledge they haven't.

@BlackEpyon

7 жыл бұрын

Heck, I'd live to see a few collaboration projects between them :-)

A good source for long linear actuators are old (cutting-) plotters. Have made a video about that once ...

Visual effects done practically, and relatively easily built.... This just made me super happy!

A jerk limit is what I had to make for myself when working from home.

@Aistlander

6 жыл бұрын

Sometimes you can try loosening the limit screw and see what happens. If things get too out of control then tighten it up again.

@Asdayasman

5 жыл бұрын

Gross. But relateable.

As soon as I saw the camera mounted on the rail, I immediately thought of dolly zoom and how amazing that would look. Glad you did it!

That garage is packed with tools and equipment. :-)

I just finished my motorised camera slider project and that pivoting technique is pretty cool! Thanks for that!

I love this channel with all of your videos! Thank you very much for posting your cool inventions!

Sir, have you been told before you're a genius? I bet you have, but here it goes again: YOU SIR ARE A GENIUS! Thanks for sharing your creativity and knowledge with everyone. Greetings from Mexico :)

I liked the video after 10 seconds when I saw how the camera moved. Wished there is another Like button when I saw what it does. Well done! This is amazing!

The Chronos is an amazing bit of kit, it's size and mass appears to open up so many opportunities that aren't open the Phantom range of cameras. The internet has given access to so many different possibilities from people who think outside the box.

I used to watch one Ben's video every morning during breakfast. Now I have watched them all and I have to wait a month for a new video to show up, really looking forward to it every time though. This is my favorite youtube channel.

30 seconds in and my mind is already blown. Great work.

Wow, that is really cool! So many things all happening at the same time!

I think your ideas are great, i am a filmmaker and someone appreciating framing movment ect. makes me happy!!!

I love the poor man's panning of the camera. even though you went with a decent linear actuator. beautiful build sir (again) cheers! and happy new year !

For long enough I have wondered what that effect was and now I know; dolly zoom. Thanks 👍

Excellent video! The servo motor and the clamp coupler in that configuration would be so useful for a lot of cool things

Awesome video, rigging, and explanations!

This is a really cool idea Ben!

Pretty amazing camera rig. Slick software too. Can't wait to see what you do with it.

Something involving a power, like flour, would be cool. Your trick for keeping the camera focused on the subject is so smart btw.

the footage you get out of this is beautiful, btw the slow motion + dolly zoom is dramatic as all hell

You are always on a different level

excellent as always. I hope to have a shop like yours some day.

These videos make me happy

amazing 😍

Great and very interesting work. Please share more vids as you progress!

It's crazy to see a channel that has literally zero self endorsement, you never ask for subscribers or anything, no patreon page.

Yeah im calling it, youre definitely the next slomo guy, youve got the engineering skills to set this thing up to do all sorts of cool things. I suggest you do a venus flytrap, that would be cool to see in slow motion, and maybe a frog or a chameleon.

@0xF33D

7 жыл бұрын

You got the idea of this channel completely wrong. The guy is doing whatever he wants, not stopping at one particular solved topic. A difficulty of the problem is what he likes, and not the application of the solution.

Excellent work!

ALWAYS informative videos. Thank you so much, sir.

This is awesome, I think for the changing of the whole dolly zoom sequence you could lay down precisely fitted strips of reflector tape and use something like a mouse sensor to (Similar to how most middle mouse wheels work) to calculate the position and drive the motors. This has the benefit of not having to rely on a mechanical relationship between the rail and the rig and relying instead on light.

supercool ! Thanks, Ben.

you have inspired me to do so many cool things, I love it. thanks!

I thought Chronos had an adjustable lens mount to adjust lens to sensor distance, avoiding the need for shims

@whitcwa

7 жыл бұрын

Yes, there's a setscrew on the bottom to loosen and then the C mount turns in/out.

@AppliedScience

7 жыл бұрын

You're right! I should have read the manual!

@johnnyj540

7 жыл бұрын

Read a manual?

@PAhmad99

7 жыл бұрын

so geniuses' make mistakes too... didn't know that...

Happy new year Ben!

Always awesome!

Dropping a egg setting off a firecracker blowing up a lighter pooring out water. breaking glass just some of the ideas that came to mind

So digging this channel. Thanks mate

Great video! You could put the potentiometer on the arm's pivot point that's away from the track and that way you would always know the exact position along the track.

Super cool setup! I think a confetti popper aiming upwards would yield a cool shot, granted you would need an additional mechanism to actually set the popper off, but that should be reasonably trivial. Keep up the awesome videos!

Just me, or is the wobble at 16:16 pretty damn unsettling? I found that to be an incredibly fortuitous event! Hopefully something used by others in the future! Really loved it!

This is a seriously cool video

Reversed footage would look very impressive with this set up.

I think that a shot of one of your flash tubes going off would be cool!

This is awesome!

I really learned new stuff todayn thanks !! learned abt servomotors, and special techniques

I'd love to see you do a collaboration or two with The Slow-Mo guys. The kind of stuff you're experimenting with has great potential if you can scale your rig up to take a larger camera!

Amazing. Thank you.

That's amazing!

Great work! When using the linear actuator long-ways, for par focus, the left/right motion is very apparent.

great video, thanks

Nice job!!

Your fiberglas rod/arm is brilliant. I like the idea of moving the axis though such that it is not necessarily directly underneath the subject. Moving the axis closer or farther from the track will give the camera either a little over or under panning. You could get some cool "tracking" shots this way. Filming something like a projectile through a glass - you might want the camera to somewhat track the projectile as it approaches and somewhat follow it (and the debris) after the collision.

mind blow as always.

very interesting stuff !

A panto-graph movement for the positioning stick and head would allow for other angles and pan rates, would also let you get the assembly behind the camera.

you can also find a ratio of focus/travel and use same motor with extra belt. a conical cvt like arrangement can provide infinite ratio adjustment.

For a 300K subscriber channel, I'm surprised you're not a bit more engaged with making videos in a more timely fashion.

Excellent project! The Dolly zoom effect is especially interesting I think. I noticed that the camera starts shaking as it starts moving and then that effect is of course then amplified as the camera zooms in. The shot might be more stable if you move the camera towards the subject since since you'll be mitigating the shaking by zooming out as the camera starts to move.

That's what I need in my life - a jerk limit.

that was so funking cool

This guy is awesome. I wish I knew so much

I think the BBC documentary team can still learn from your techniques ! I'd love to see some high class nature events with your setup

his highly developed ideas change the world

Cody's Lab should totally get in cahoots with you and do some potassium exploding in water shots, or maybe something with mercury. That dolly zoom effect would be really cool with some of the stuff he does!

great video, loved it :) suggestion: in your last shot you made a *dolly in* for an action that took the same amount of space from start to end. it feels odd to not see the whole thing, which can be on purpose, but you can also try to shot a *dolly out* for a (re)action that starts small and ends up taking a considerable amount of space

nice video, hope you can get it tuned in just right so the zoom works perfectly

as already suggested, I think a firecracker going off would be cool, and to add to that theme and the motion aspect, tie a pack-o-crackers above the plane to be captured and then get the shot of them 1st breaking away from the bunch when their fuses burn loose, and then the following explosion. I think the moments between their separation and detonation would be interesting to explore. Thanks so much and All the Best for 2017!

Footage ideas: - make some contact explosive, coat a flat surface, and set it off at one corner, capturing how the combustion progresses. - particulate flocking - dye mixing into a transparent fluid? (maybe too slow to be of interest) - progression of a compression wave down a spring/slinky - different modes of a guitar string vibrating

Very cool.

Everything you do is so dam impressive. What type of engineer are you?

I thought you where going to film something falling (vertically oriented), a drop of water or something like that, but still great video, keep up the awesome work you do :)

amazing

Science has been applied! Wow!

Perfeito fantástico! Rio Brasil

I subbed, part of the reason I did was because your mustache is amazing

Cool. Best wishes for 2017

An idea for the panning truck shot setup: if it's fast enough it could be interesting to see a shot arrow go through a watermelon or something similar, where the camera sees the front as the arrow enters, and then the camera makes it around back for the arrows exit.

Great setup and footage. A couple ideas for you: first, you could use a USB presentation 'clicker' to reset and run your actuator without needing to use the mouse. Second, how about a mechanical connection between the focusing ring and the linear track? That way there's no delay in the stepper focus out of sync with the rail stepper? A rack and pinion?

thank you KZread because without you I would never get to see stuff like this. suggestions: firecrackers , and any animal small big, bug, mammal ,whatever

suggestion for the 360 setup: an electric arc would probably look incredible, and has the benefit of somewhat being self-lighting.

Ben, have a look at the "Orbis" absolute rotary sensor from RLS for accurate position feedback. It's a contact less magnetic encoder with 14 bit resolution. There is a version that communicates over SPI so interfacing with Arduino is very straight forward. The data stream contains both the absolution angular position and the angular velocity if needed. It is quite affordable (compared to other rotary encoders). I think you can mount it directly on the outgoing shaft of the linear actuator. I have used a beta sample and am extremely satisfied with the performance! Keep them brilliant videos comin'!

Instead of working against the grain, why not with it. Get an autofocus lens, hack a mini servo in the lens' drive. Get an ultrasonic range finder module for Arduino, meld all of those together with some code, and voila, a self adjusting autofocus lens for a high speed camera. If the code is done right, based on the USR module, it should know exactly where to keep the focus. edit:mistake

@moritzkockritz5710

7 жыл бұрын

aserta or you could just figure the needed focus adjustment out and not deal with range finding

@aserta

7 жыл бұрын

Kyrill, guilty as charged. However, i must admit, i was thinking of it more for the slide+turn situation, than the dolly zoom. I think it would help immensely with tracking an item that has irregular shape, and, or, if say the subject itself is in motion (you could, in theory, extend the tracking to the point where given complete control on the camera in 3 axis + zoom + focus, the Arduino based USR would self-track a bird in flight, much like a prop turret i saw a few years ago done for Portal 2 (i think)). Now, i don't know how it would perform against a soft target like, say a water splash, but those modules are pretty darn good. The original creator (most you find on eBay are copies of a copy) was a pretty smart individual.

non newtonian fluid on a speaker would look really cool in slow-mo with a circular rail set up around it.

cool

what about encoding the rail to be optically read for .....

Could you build a rig so that the camera rotates to follow the tilt of the cup (or other object in motion)? The subject would stay vertical in frame, with all the action rotating around it. Just an idea! Love your channel!!!

This video is exactly what I have been searching for, thank you for creating this. Quick question, what should I search for to find the same rail that's in this video? Any info you can provide would be awesome. Thanks in advance!

I always wondered how hollywood got those particular shots. Thanks.

@KnolltopFarms

7 жыл бұрын

Man Duncan, you'd be fascinated by all of the gadgets, gear, and gizmos you'll find inside a Hollywood movie-making rental house! There are so many amazing tools, and the creativity of the inventions is top-shelf. I worked for a lighting and equipment rental company in the early 90's, and we were the 1st outfit to carry digital square-wave lighting for flicker-free capture of slow motion.

Nice videos! Btw, there's a cnc controller for arduino called grbl that has the same functionality as the program you use to control the slider. So up to 3 axis using the same serial interface is not bad at all ;)

A cheap way to get linear actuators is to disassemble roller plotters. The big machines to cut or draw on paper sheets. The head is moved by a linear actuator. Look for old broken HP Plotter. They have often only problems with the electronics, the mechanic is very ridged and build modular. I've brought two broken ones for 100 bucks. The actuator is often driven by a servo (electro motor with an decoder attached)

Great stuff! How about a long narrow trough filled with jello or agar and make some waves, embed some iron filings in it and use magnets to move the wave, could have a magnet on an arm moving under the tray.

Make a driven focus puller. Basically just 3d print a gear that you can secure to your lens's zoom ring then put a spur gear on the servo you have running it to eliminate most of your slippage issue. You could also drive a second gear around your focal ring. With depth of field information combined with knowing distance to subject as it changes over distance traveled, it should be pretty easy to find a ratio of gear ratios that will keep the subject in the bounds of the depth of field. What could be more interesting than something like a dolly zoom is building a rig that moves the lens in relation to the sensor plane (tilt shift).

Fantastic video and very creative! (I was wondering if you could solve your potentiometer-slippage problem by using a laser range finder? Perhaps gut a "digital measuring tape" if the components aren't cheaper.) Just a thought. :)

You can achieve similar effect by capturing background frames separately and gradualy sacle them up in postprocessing while focus frames stay untouched. This should be easily doable with static backgrounds or in scenes where background is not reflected in focus frames and you don't need to move camera at all.

@loro.h9612

7 жыл бұрын

Paweł Audionysos boring!