Very nice, Peter, the moves look very smooth. For that roll-compensating you need another motor/gear in-line between the boom-arm and the head, I think..... basically a harmonic drive or similar that has enough torque to hold the complete head and camera. However, this will complicate the intuitive programming by hand.
3 года назад
Thanks! I also plan an extra axes, but now I just enjoy what is already working:) I really don't need extra weight in the head, so I have to figure out a light tilt head.
awesome.! i have made my camera robot year ago and i wasnt able to finish it because of the software. please if you can answer few questions will help me alot. thank you
3 года назад
Hi. No problem. Just ask, I will try to help, if I can:)
@ i build my camera robot on Cartesian system with pan,tilt and roll head at the end of my z axis. And i used AR3 software by cris annin robot arm it works but some limitations because the software inverse kinematics are written for robot arm. My question is how can we modify the source code of ar3 to work with Cartesian robot.
3 года назад
@@RapidShots_Studio Hi. This is not exactly the question, I could answer easy:) I suppose You have Step/Dir drives. If the kinematic doesn't fit your robot you can also try something simpler, like Mach3. There you just set the coordinates and interpolates between two points. On a Cartesian it can work at the beginning:)
@ oh ok, it's pretty complicated to get those servos working, or? I tried it with an JMC servo but switched back to steppers as I couldn't get them to work properly. Do you think you could do a video also about controller and software which you use or are available for private use? actually I'd like to record a path and then replay it. With a joystick I would be super happy, don't even need to position the robot by bare hands. I'm wondering how to record the data and hwo to store it. If it's recorded with position waypoints and speed, or position at a dedicated timestamp. I'm super impressed by your builds
6 месяцев назад
@@mt8385 Hi, If you like stepper motors, there is a possibility to install a rotary encoder on a stepper as well. My problem with stepper, that even if you apply microstep and so there is still a small resonance, can be seen on the recorded video. I use Siemens Sinamics drives now. The software is free for those drives.
Wow , it's amazing ! can you make a tutorial video on how to positioning the robot by hand? I'm interested on the software and whole system , but i found not any source from youtube
3 года назад
Hi. This video is relatively detailed. There are AC servo drives on the robot with rotary encoders. So when the robot moves or if it is moved by hand the rotary encoders always detects the actual coordinates and with the robot controller the position can be stored and later replayed. This is shown on this video.
@ Does stepper motor can store the position ? sorry i'm quite new on this field as i just study engineering
3 года назад
@@suren9353 The stepper motor also can have rotary encoder, but usually it doesn"t have. Most of the stepper motor controllers are open loop so there is no rotation feedback.
Awesome work! How can i contact you? I'm trying to remove the input coupler from the harmonic drive on my sr60. Would love to speak with you about your motor swap.
3 года назад
Hi. This is my facebook channel: facebook.com/bugstickeranimation/ Write me a message there and if I can, I will try to help!
Hi. Most of the components are secondhand. The whole budget is about 800-1000 USD, but took me ages to collect all the parts and it was a lot of work. 99% of the parts are industrial.
@ I wish that was possible in Thailand: anything that has a hint of value will be quickly picked up, dismantled and sold in pieces for high prices at used-gear shops.
3 года назад
@@steadirob There are people here also, who hunting good stuff on junkyards, but even if you buy from them it is still not too expensive. Once I saw a picture about a huge pile of KUKA robots (like 100 robots) in a pile in a junkyard near me...
Stop saying DIY. You're a robotics engineer, we are not so clearly I can't Do it Myself. This is awesome anyway. Wish I could make one for myself but surely not in my wildest dreams.
If you’re building something from a PET bottle home, you could say DIY despite not have an extruder at home that makes the PET bottle itself. If you want to build a robot you need components! If you find them on a scrapyard, and assembly them differently and entirely change its function I think it is a DIY project to. If you watched the video you saw the modifications on the original robot.
@ In no way is my comment to take away credit from your work, which I find spectacular. But from a DIY project I would expect more "basic" components, perhaps motors, controller boards, milled or 3D printed parts, not the modification of a robotic arm ... build from less integrated components. It's not my idea to DIY build your own convertible car, the first thing you need is a car ... Sorry if you offend my comment, it's just a matter of definition. Nice job
