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Hacker Twins
United States
Registrace 30. 06. 2020
Mark and Jeff are twins with expertise in tech but have taken different paths. Mark is a full-stack Ruby on Rails developer, who has worked at multiple startups. Jeff pivoted towards fin-tech, where using Python to create systems that streamline financial operations. Their teamwork brings a unique blend of technical skills and business experience.
We Fixed a Wiry Mess With a Custom Built PCB
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PCBWay website:
www.pcbway.com/
Our 3D Printed Robot Arm project turns 1 year old! Watch us give it a few upgrades and improvements.
#3dprinting #robot #pcb
PCBWay website:
www.pcbway.com/
Our 3D Printed Robot Arm project turns 1 year old! Watch us give it a few upgrades and improvements.
#3dprinting #robot #pcb
zhlédnutí: 109
Video
Can a 3D Printed Airplane Fly?
zhlédnutí 7KPřed měsícem
Like & Subscribe! Shout-out to Overture 3D for sending us Yellow Air PLA: overture3d.com/products/overture-air-pla-3dprintingfilament?variant=43982563115262 We've never succeeded in making a 3D printed project that can fly, and today we've built a classic toy airplane. In the past, we've made an ornithopter, but it couldn't fly. Let's see how well our yellow toy airplane can fly! #3dprinting #a...
Making a Handwired Keyboard
zhlédnutí 465Před měsícem
This week I make a hand-wired keyboard. I followed @joe_scotto's how to video step by step, check it out here czcams.com/video/hjml-K-pV4E/video.html This was my first time soldering but it was really fun to make a working keyboard. This project was all in preparation for the soldering.
ROVER UPGRADE
zhlédnutí 290Před 2 měsíci
This week we make major updates to our rover project. It uses #ros2 #raspberrypi #3dprinting. It live streams video and drives around the workshop! This was the first rover we made czcams.com/video/ft3W5tIa0N8/video.html&ab_channel=HackerTwins Hacker Twins is a new channel so like and subscribe if you want to stay up to date on our #robot projects.
3 Things you need for your Maker Space
zhlédnutí 191Před 2 měsíci
Like & Subscribe! We're Back! We have a new workshop and will discuss 3 things you need to build your own Hacker Space / Maker Space. #3dprinting #hackerspace #makerspace
Bluetooth Serial Connection: Windows & Ubuntu
zhlédnutí 144Před 3 měsíci
00:00:00 Intro & Robot Arm 00:01:42 Setting Up Bluetooth Windows 00:02:44 Setting Up Bluetooth Ubuntu Like & Subscribe! Code: github.com/doeswork/desk_buddy This tutorial covers the steps to set up a Bluetooth serial connection on Windows and Ubuntu. Learn how to pair devices using Bluetooth on both operating systems quickly and easily. We use an HC-06 for Arduino Nano, but this works for other...
Build a Rover ROS2
zhlédnutí 2,9KPřed 4 měsíci
We 3D printed a rover and control it with ROS2 and Raspberry PI. None of the Hacker Twins Robots can reliably move around on their own yet. The Rover will help us test visualization software and do more! #robots #3dprinting #raspberrypi #ros2 #rover
Build a Robot in 3 Simple Steps
zhlédnutí 1,5KPřed 4 měsíci
Like & Subscribe! In this video we use our first robot arm project, Desk Buddy, as an example to demonstrate our 3-step process in building and refining DIY robots. This is an affordable and simple robot arm project you can do yourself! github.com/doeswork/desk_buddy HackerTwins.com #robots #3dprinting #arduino
Control Robot Arm with Raspberry Pi | ROS2
zhlédnutí 2,8KPřed 4 měsíci
Control Robot Arm with Raspberry Pi | ROS2
Unboxing: Intel RealSense D435 Camera & SDK Setup Tutorial
zhlédnutí 717Před 5 měsíci
Unboxing: Intel RealSense D435 Camera & SDK Setup Tutorial
ORB SLAM3: Mono Webcam Solutions for ROS2 Humble & Foxy
zhlédnutí 1,8KPřed 6 měsíci
ORB SLAM3: Mono Webcam Solutions for ROS2 Humble & Foxy
$1 vs $4 Servo What is the Better Deal vs Strength?
zhlédnutí 2,4KPřed 6 měsíci
$1 vs $4 Servo What is the Better Deal vs Strength?
Build and Control Arduino Robot with Python - Bluetooth Guide + Giveaway!
zhlédnutí 541Před 6 měsíci
Build and Control Arduino Robot with Python - Bluetooth Guide Giveaway!
Desk Buddy Demo: Showcasing Our 3D Printed Robot Arm + Free Robot Giveaway!
zhlédnutí 692Před 7 měsíci
Desk Buddy Demo: Showcasing Our 3D Printed Robot Arm Free Robot Giveaway!
Tripedal Walking Robot: Arduino Nano & HC-06 Bluetooth 3-Legged Servo Walker
zhlédnutí 362Před 7 měsíci
Tripedal Walking Robot: Arduino Nano & HC-06 Bluetooth 3-Legged Servo Walker
Open Source Arduino-Bluetooth Robotic Arm: Desk Buddy
zhlédnutí 361Před 7 měsíci
Open Source Arduino-Bluetooth Robotic Arm: Desk Buddy
Learn FreeCAD Fast: 5-Minute Beginner's Guide
zhlédnutí 196Před 8 měsíci
Learn FreeCAD Fast: 5-Minute Beginner's Guide
How to Build a Continuous Spinning Robot with a Stepper Motor
zhlédnutí 2,9KPřed 8 měsíci
How to Build a Continuous Spinning Robot with a Stepper Motor
We're Hacker Twins and we Make Custom Robots
zhlédnutí 1,7KPřed 8 měsíci
We're Hacker Twins and we Make Custom Robots
Arduino HC-06 Tutorial + CH341SER Driver Install | ATmega328P CH340G
zhlédnutí 511Před 8 měsíci
Arduino HC-06 Tutorial CH341SER Driver Install | ATmega328P CH340G
Unboxing Bambu Lab X1-Carbon in Just 42 Seconds!
zhlédnutí 504Před 9 měsíci
Unboxing Bambu Lab X1-Carbon in Just 42 Seconds!
3-Legged Walking Robot: Wireless Control with NRF24L01+ & Ubuntu
zhlédnutí 462Před 9 měsíci
3-Legged Walking Robot: Wireless Control with NRF24L01 & Ubuntu
Robot Framework: DoesRobot | Tutorial for Installation Tools and Scripts
zhlédnutí 46Před 9 měsíci
Robot Framework: DoesRobot | Tutorial for Installation Tools and Scripts
DIY Simple and Small 3D Printed Wallet: Ultra-Cheap & Easy to Make!
zhlédnutí 208Před 9 měsíci
DIY Simple and Small 3D Printed Wallet: Ultra-Cheap & Easy to Make!
Charge 18V Lithium-Ion Power Tool Battery with 100W Solar Panel Using MPPT Solar Panel Controller
zhlédnutí 594Před 9 měsíci
Charge 18V Lithium-Ion Power Tool Battery with 100W Solar Panel Using MPPT Solar Panel Controller
more than happy to burn up a servo to hold my cell phone <3
I had to make one of those a couple of years ago. I used scissors and a piece of foam. Took ten minutes.
You know everything looked great except you didn't match the color of the filament to the color of the microphone, and you bought a microphone that connects over a USB cable. Have fun.
Thank you for sharing this great project! what camera model did you use for this project?
An old cheap Logitech 720p webcam, but we've recently upgraded to an Intel Realsense D435
Thank you for sharing this super job! what camera model did you use for this project?
Desk buddy has come so far! Great work! 🎉
nice
this is epic
Thank you!
Ryan Reynolds!?
He was recording
you need a dihedral.
Yes! The next plane will have two separate parts for the wing, it wasn't really possible with the way we were printing it this time.
You guys are noob😅
💯
Maybe you should add some aileron/rudder twist to counter the propeller torque. Don't forget Newton's Third Law!
Haha, kinda worried about Newton's Third Law
excited to see where this project goes!
Amazing! Does this work with mono inertial? I couldn't find a folder in your github repository dealing with mono inertial.
its in the CMakeList.txt
Hey, so the problem with your soldering is that you're trying to solder a thick copper wire held with hot glue. Since the copper wire is so thick it needs a lot of heat to overcome its heat capacity, and reach the solder melting temperature, and before then it's already hot enough to melt the hot glue again. Next time try with thinner wire (I usually use the leads cut off from used through hole components) that can heat up more quickly locally, before the temperature reaches the hot glue.
That makes a lot of sense! I turned the heat up and down for certain parts, but different material would have been the play.
As long as it's something super light otherwise printing it laying flat would probably be a better option.
Sweet!
Were did you get it (the monitor)
Amazon
Respect for modeling in freecad
Wouldn't it be better to print this on its side, for strength
Stand for portable monitor is not portable….
It is?
Why not have the base and mount part be two seperate pieces so it collapses nicer for storage in a bag?
I started doing that but this was overall easier to design and print. If I'm having issues with it I'll for sure go with the two piece
Mark get a fucking wallplate for that outlet
Great update! :) Cant wait for more videos!
Great ideas for a Hacker/office space. A location where ideas grow and get built. Get more vids coming.
Thanks Bill!
dose This uses IR? if so it probably dosen't work well outside
it does use IR, but I've seen other videos of people using it outside. We'll be testing it outside on our rover in a month or 2
Hello, amazing work. I want to ask can this be applied to gazebo ? like camera in gazebo? if i know the topic of image and everything ? thank you
Yes, if you already have the correct version of Gazebo working with the corresponding version of ROS2. Although I've had issues with Gazebo in the past and have given up on it, I would like to try it again in the future.
I've found very few resources on actually connecting ORBSLAM to ROS with an output that can be used for odometry/global positioning (a nav2 stack). Can you point me anywhere?
Thats a big reason why we're working on it! You should see a lot of activity in our EASY-ORB-SLAM3 repo on github in March.
Interesting video. thank you. Any plans to use such a control from an Android device?
We've used NRF24L01+ transceivers to control it with a remote controller, but the next plans are to make it bigger and use a raspberry pi
Good job! Keep going!
Hi. Thanks a lot for the video!
I need to pick up some SG90s to do more stuff like your robot arms! What's the purpose of FS90R continuous motor over a normal motor? Besides not having to use a motor control board. Please add hardware notes to your youtube (or github? in case I am missing it) so I dont have to zoom in and squint :)
Very cool. I'm picking up some of these servos for my own rover and testing!
I love this advice
Thank you!
Nice video. I have one question about the code to control it. So, we have a publisher (laptop) and a listener (RPI). Is the entire code stored on the development machine? If not, do you write the code via SSH to storage at RPI?
The code is both on the Raspberry Pi and my Laptop, its the same exact code too! It works because both machines are running ubuntu OS with ROS2 installed. Here's the repo github.com/doeswork/stepper_motor. Both my machines are set to listen/talk to nodes over the network `export ROS_LOCALHOST_ONLY=0`. I go into a bit in this video where I install ROS2 czcams.com/video/s7DQPL3VZfg/video.html
@@hackertwins Ok. So, if I understood you correctly, you develop your code on the dev machine (laptop). Next, you push it to GitHub, and then you clone/(sudo apt update -> sudo apt upgrade) the repository to RPI. Next step is testing (check sensor values(gpio) and control actuators). Does it look like what I wrote?
somehow you were my third video on my homepage. This is amazing! keep up the good work!
Same!
Wow, thanks!
fourth on mine!
6th video for me... :) Hello fellow nerds
Awesome! I am stuck at the "waiting for images". I can see that the terminal outputs "one frame has been sent" but nothing appears on the actual orbslam viewer. It worked 1-2 times and since then never again. Any idea what might be wrong? And is it necessary to adjust the TUM1.yaml file at all to get some first results?
Ever so slowly move your camera on startup, it needs to build a 3D space before it opens the map
Thanks for answering! Unfortunately this also doesn't help there is still only a black screen and it keeps saying "waiting for images". I get the frames "one frame has been sent [INFO] [1705854255.607086745] [ORB_SLAM3_ROS2]: Received image at time: 1705854255" like such and can even see them in rqt_imageview under /camera topic. Do you have any other possible solutions? Thanks a lot. @@hackertwins
The shape and movement almost look like a cartoon gorilla. The velocity of the servos on the outer legs seems slower in comparison to the outer legs. This difference may cause the gait to be off. I'm glad to see progress. Keep it up!
Very cool! I always love looking for new projects. One question, though: I just built an RC car with a Raspberry Pi controlling the outputs. I encountered a similar issue with the servo twitch. Do you have any ideas on how to fix that? Thanks for the inspiration!
Usually its a bad universal ground connection, or not enough power. Check that every negative wire is connect to each other. Next add more power, even if you have to plug it into the wall just to test. Then probe voltage during operation and see if you are getting a voltage drop on the PI. You might need a capacitor or buck converter to keep raspberry pi voltage consistent.
@@hackertwins Cool! Thanks for the info. I just added a 100 uF capacitor to the circuit and that did helped with my issue. I think the spike in current is dropping the voltage through my buck converter.
I wanted to become a Robotics Engineer, thank you for encouraging me a lot
You got this!
hahaha, this is cool!
Gorilla tag
I don't understand why not just use two legs with the help of a mcu 6050 accelerometer board for balancing with a camera and opencv
In the future the outer legs will also be arms
Looks like butter bot
Great video! I'm looking to make a bipedal robot too and this is great inspiration
Awesome! Be sure to share pics/vids
I love this, I just got back into robotics, and this is inspiring! I agree that batteries and wires could be moved to contribute to center of gravity. Traction pads could help. But I absolutely love to see walking robots of any type. Most, myself included, go straight to wheels; nature didn't, so it's inspiring to see walking bots!
I hope you post videos of your robots!
Very cool! Maybe mount the batteries and SBC on the legs and lower the center of gravity? Or add weight and traction pads to the feet. Love the companion app to visualize the steps!
I've always liked the idea of batteries in the feet, but maybe they'll go in the thighs? Also, I'm super excited to finally build shoes for Tripedal!
can't wait to see your future projects using this cam
Curious if you feel this approach could replace the need for lidar in navigating an indoor warehouse space?
ORB SLAM3, as well as other stereo camera SLAM systems, have some practical advantages over LiDAR. LiDAR typically generates 2D maps and might need extra sensors for complete motion tracking. On the other hand, ORB SLAM3 can function with just a (stereo) camera and create 3D maps, which can provide a more detailed understanding of the environment. Check out our new video were we unbox an Intel D435 Stereo Camera and record in 3D!
Nice build. Just curious why add the python layer?
TBH I'm mostly a python dev, but my official answer is, "We're already using OpenCV so it makes it easier". I hereby select you to be this week's robot winner! I'll send you and email for more details.
@@hackertwins Nice yeah definitely better image processing options in Python