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Dale Sparrow
Registrace 6. 05. 2012
The rebirth of the other sparrow, the evolved and yet timeless existence of his conscious.
Make the sun WATER?
I make the sun water.
Yes.
Also I got my cool half life gordon freeman shirt from this shop: www.nova.co.za
Yes.
Also I got my cool half life gordon freeman shirt from this shop: www.nova.co.za
zhlédnutí: 161
Video
Inkscape background tutorial - bouncy science
zhlédnutí 206Před 4 lety
A request was made on how I achieve a particular Inkscape art effect in backgrounds I make about sciency stuff. Since it looked like a video would be pretty fast to make, I slapped this together. The image files can be downloaded here: png: s000.tinyupload.com/?file_id=03797270411471829964 svg: s000.tinyupload.com/?file_id=00497911522791156718
Paintball Turret - Sentinel control system design (Video 4)
zhlédnutí 1,5KPřed 4 lety
This video goes into some detail about the control system design of the Sentinel automatic sentry gun.
Air Force - the purely mechanical emergency ventilator
zhlédnutí 131Před 4 lety
This design was submitted as a proposal to the South African government's need for rapidly producible ventilators due to the COVID-19 outbreak. We did not have the manufacturing capabilities available to us for a prototype, but all the critical calculations on the pressure adjustments, volume control, and mechanical actuation shows it's feasible. This ventilator has very little moving parts, an...
Paintball Sentry - Sentinel Tracking System (video 3)
zhlédnutí 3KPřed 5 lety
In this video I explain the Sentinel Tracking system and how it achieves it's accuracy using stereo vision, kalman filters, and interception calculations. Make sure to watch the previous videos in this series for context. Intro video: czcams.com/video/wICsZwd6lOk/video.html Mechanical design video: czcams.com/video/zHxRDFLMUcg/video.html
Paintball Turret - Sentinel mechanical design (Video 2)
zhlédnutí 4,8KPřed 5 lety
This video goes into some detail about the mechanical design of the Sentinel automatic sentry gun. The first video discussed how the requirements were defined and what I was working towards.
Paintball Turret - Sentinel, super accurate target leading with stereo vision (Video 1)
zhlédnutí 2,1KPřed 5 lety
This is the first video of a series I hope to release on how the Sentinel Turret was made. My previous videos did not do this system justice so I thought I'd try again. Next Video: czcams.com/video/zHxRDFLMUcg/video.html&ab_channel=DaleSparrow
BE KOI - the math behind koi aesthetics
zhlédnutí 145Před 5 lety
I like koi. They swim in spliny smooth curves. Fluid mechanics, bright colours, serenity in the shape of sword made of meat. I like to understand the mechanics of things I like, this game was me digitizing what I love about koi. You Can check out more of how it was done here: BeKoi7 makegamessa.com/discussion/5586/be-koi#latest Stranger Think Is the song by famous minecraft music co...
A canvas of undulating locomotion
zhlédnutí 110Před 5 lety
Using my Be Koi fish simulator, I removed the GL clear function so I could see how I maneuvered the fish's body in order to move around. See more about Be Koi here: czcams.com/video/WahMk47Hino/video.html The program I wrote calculates the lift and forces produced by the body of the fish, and I control the contraction of the tail muscles with the X movement of my mouse while I control the contr...
How To Assemble Your DROPSTOP
zhlédnutí 67Před 6 lety
Stellar Stuff has brought you the cheapest and most effective way to save 50% of your household water usage by collecting your shower water in one of our DROPSTOP units. This video details how to assemble your unit.
DROPSTOP water saver. Save, re-use, stop the drop
zhlédnutí 244Před 6 lety
In 2018 it’s estimated that the city of Cape Town will completely run out of water. A lot of effort is being done by members of the public to save the little that is left in our dams. All over the city you can see the effects on gardens, unwashed cars, the massive increase in water levies, and the trucks full of JoJo tanks. We need to save all the water we can to push back Day Zero when the cit...
Sentinel auto-turret . Stereo vision paintball sentry test 2
zhlédnutí 3,3KPřed 6 lety
A collection of clips showing the Sentinel system at work. The first clip demonstrates the target interception and tracking software and the rest show the system in action.
Advanced auto-targeting stereo vision paintball turret
zhlédnutí 80KPřed 6 lety
I used to go nuts building auto-turrets in Garry's mod back in '08. Now I get to do them in real life. Check the final tests for more impressive strikes: czcams.com/video/kdTBOc3NZV8/video.html This was for my final year engineering skripsie project at the University of Stellenbosch These are the initial tests of the system and I'll upload more as I make improvements and iron out the kinks. FEA...
Marble Distributor - Stellenbosch Mechatronics Project
zhlédnutí 255Před 7 lety
Marble Distributor - Stellenbosch Mechatronics Project
Home Built Discus Launch Glider - mini-q
zhlédnutí 16KPřed 9 lety
Home Built Discus Launch Glider - mini-q
non iterative collision resolution test
zhlédnutí 409Před 11 lety
non iterative collision resolution test
Absolute Basics - Code your own VERY simple 3D engine - part 7b
zhlédnutí 971Před 11 lety
Absolute Basics - Code your own VERY simple 3D engine - part 7b
Absolute Basics - Code your own VERY simple 3D engine - Part 7a
zhlédnutí 898Před 11 lety
Absolute Basics - Code your own VERY simple 3D engine - Part 7a
Absolute Basics- Code your own very simple 3D engine part 6
zhlédnutí 761Před 11 lety
Absolute Basics- Code your own very simple 3D engine part 6
Absolute Basics - Code your own VERY simple 3D engine - part 5
zhlédnutí 670Před 12 lety
Absolute Basics - Code your own VERY simple 3D engine - part 5
Absolute Basics - Code your own VERY simple 3D engine - part 4
zhlédnutí 864Před 12 lety
Absolute Basics - Code your own VERY simple 3D engine - part 4
Gmod A-10 - joystick controlled moving fin surfaces (controlled by fin tool)
zhlédnutí 984Před 12 lety
Gmod A-10 - joystick controlled moving fin surfaces (controlled by fin tool)
Absolute Basics - Code your own VERY simple 3D engine - part 3
zhlédnutí 977Před 12 lety
Absolute Basics - Code your own VERY simple 3D engine - part 3
Absolute Basics - Code your own VERY simple 3D engine - part 2
zhlédnutí 1,8KPřed 12 lety
Absolute Basics - Code your own VERY simple 3D engine - part 2
Learn the hardcore enginering of offseted systems at Precision Control Systems: An Advanced Engineering Project - kickstarter
Nice idea XD
Love it
It's nice physics remove your facial video screen and show the equations clearly on full screen
This would be great to keep deer out of ones garden.
Is it aiming ahead of the target instead of at the target?? This is amazing!
Thanks! It's doing even more than that, it uses two second order equations to shoot where the target will be even if it's accelerating. So it's shooting ahead of where it's ahead.
Cool 😮
Interesting for home application 😅
I want to ask you something about this subject. How can I reach you?
Thank you for this video. Ever got started on a 3d printed model?
Low tier bike
I love your design and your explanation was very helpful. I'm much more of a coder than a mechanical guy, but I've been working on a paintball sentry bot that can move around. Lmk if you'd be willing to collab on a new turret design!
Totally man! We should have a call some time :)
hi all. amazing project. Did you share any stl files or plans for this project anywhere. Would love to attempt this.
can you share the plans? thank you so much!!! excellent work!!
this is probably the best paintball turret design I've seen, great work man
Thanks dude!
why did she not have safety glasses
The turret wasn't loaded or connected to gas for that point in time. When we did firing as you'll see later she definitely did.
This is the part of engineering that I *absolutely hate*... The development engineer has to figure out what the client *NEEDS* as opposed to what the client *THINKS HE WANTS*... Almost always the most frustrating part of any project...
Absolutely brilliant work. 'n Boer maak 'n plan!!! I have a bunch of sterilized cats that go stomping all over my sinkplaat roof in the middle of the night that need to be "taken care of" Paintballs may be a little extreme for them so I would use something like an airsoft.
"Ex-axis" and "Why-axis" killed me xD
When you buy a paintball gun for you, but not a protective mask for her 🤣
Very good work. Not many working in this.
How does your belt drive design work? Is there plans
No thug is going to enter my property with something like that in backyard!
Wow. Glad nie sleg nie. Waar in SA bly julle? Ek is in Port Elizabeth en sal graag wil ontmoet.
Eks in Stellenbosch op die oomblik :)
@@ThoughtinFlight Beautifull plek. My dogter is in Paarl en coach gimanastiek in Stellies. Ek sal laat weet as ons vir haar gaan kuier. Dalk kan ons ontmoet.
Maybe a PID controller would help? It slows the turret a bit but it smooths the movement and precision.
BUILDIN A SENTRY!
Does anyone know of a guide to actually build one like this? The ones I've seen, the tracking is very slooooowwww.
Look at my tutorial videos I made about it
Hello - I just needed to write a short piece here, this presentation, no, this renaissance of art and engineering, has completely changed my life. <3 My good sir, this was an astounding experience to watch
:3
This should've changed the world.
What an impressive project. Well done. I would love to build something like that. Keep it up.
Pragtig
dayum your alive
Goeie hel!! Hierdie is beyond befok ouens!
Dankie mnr
RIP blackberry camera
fajna zabawka
Hiya Dale I'm working on a similar project and was wondering if you could release the cad files so I could have a better look at the belt system, thank you
Or any mechanical drawings you have would be immensely helpful
what about worm gears ? will they work fine? I considered because I think they'll make the mechanism more stable
They will allow very accurate movement but very very slow response
hey how did you cut those aluminium parts so clean and fine?
I sent the DXF files to a metal laser cutting shop, told them the aluminium i needed, then picked them up
24:52 can u explain how that triangular thing on the top is getting affected by the big pulley insider system?
The big middle gear has a smaller pinion that the belt around the triangle goes around. Same as the bottom mechanism where the section gear at the base connects.
hey I'm doing the same work as yours but instead of servo im using Nema 17 Stepper with Geekworm Stepper HAT, my motors aren't moving smoothly they make a hell lot of noise that it feels like someone is firing a turret and keeps on moving in one direction even if i give command to rotate in oppsite it just keeps on going sometimes it just roatates one step back and then keeps moving forward direc. in microstepping mode it keeps on vibrating but don't rotate it heats up the motors too. See If u can help me, your any help could be a precious one for me :).
I'm doing all this with RaspberryPi model 3B+, if I intend to use servos then how can I with Raspberry for such kinda application?
the first version I made was on Servos but I was just kid back then so I didn't knew the technical stuff
This sounds like an issue of wiring or coding since they should move, but probably not as good as servos
@@ThoughtinFlight yeah true
0:12 hey could you please show what's hapenning on the other side (insider side) like how the movement of the wheel as shown is affecting the gears on the other side which is hapenning to move the turret
I don't know exactly where my hard drive of this footage is, but look on my channel for the mechanical tutorial vid on this thing, maybe you'll see it there :)
@@ThoughtinFlight alright thanks, btw what if I use Steppers and Raspberry?
@@shrinkz804 it's gonna work but steppers are not amazing for rapid random movements with a high load
@@ThoughtinFlight yeah ur ryt
I got it.
Amazing videos. And great music. You changed my life. Best videos on CZcams.
hi do you have the stl f?
I couldn't even set up the regular launcher and this guy made it automatic
I miss Gmod so much. Best 3 years of my life, 12 years ago
Can I get this design drawing dimensions?
2.8mm lens or 3.6mm lens to webcams with ir-cut ? What you thinking?
You should do the calculations :). What's your design requirements? 2.8 will give you better distance resolution but lower field of view. Are you on a targeting range or a back-yard?
@@ThoughtinFlight range <20metters
estimate distance is also possible with one camera. Why you chose double camera ?
If you think about it, getting distance from one camera is mathematically impossible unless you know the exact cross sectional area of the target, and that area doesn't change ever (I.E a sphere). To get 3 co-ordinates in 3 dimensional space, you need 3 equations to relate, or two equations and one fixed variable. In this case the fixed variable is the distance between the cameras, and the equations are the projections from 2D to 3D space (in actual fact its 6 variables including all the rotation angles! but we ignore them because they are also all fixed). If you want an in depth understanding of this math field, look up Homogeneous coordinates and projection geometry in Euclidian space :).
@@ThoughtinFlight thank you
This is the best turret I've ever seen on CZcams made by an enthusiast, the perfect device and code. Do you plan to share this project in the future? especially the code ;-) Magnificent work
thanks Aleks! I think I'll make a plan to release the code. I just need to find it on my old PC!
@@ThoughtinFlight This is amazing, I say this alot, but this one, I will actually do. I don't have the engineering skills, I would just botch it together, this goes so much in deep in subjects I wouldn't dreamed off. Hope you can find the plans. Thank you
why you choosed static camera ? if would you put camera with gun, PID alghoritm would be useless. You could be see more area by turning around turret. (would not have restricted visibility) If you will add add slip ring you could be turning turret around indefinitely.
Many reasons. You can run a much better and faster image algorithm on static cams, and your origin for the gun laying algorithm can be hardcoded. If you really want 360, you could have 3 sets of cameras rather. I would much rather put one turret facing opposite direction along with one facing forward.
jou arme bure XD.