This is a brilliant idea! Have been looking for a configuration to install at the end/back corner of my work bench for a 3d printer that would be out of the way when not in use, as my current 500x500x500 cube takes up SO much room. This design would allow for a removable or hinged heatbed that could fold up out of the print area when not in use. Reminds me of a delta printer in motion, but a much more decrete footprint. Bravo!
My biggest concern with a design like that would be that you would have to re tram the frame whenever you moved it. I guess a bltouch could help to some extent?
@@etch3130 Not by much, it depends on how rigid the joints are. The each only band about the axis they move on, so as long as they are rigid and the position along the axis is known, the head must also be perfectly in line with that position on the axis.
Great design. I liked the idea that all the actuators are positioned at the ground so that I presume less load act on the end effector and the motors. Also the production is high quality. Thanks for sharing.
Nice one. BUT precision and stiffness (and one or both are always heavy requirements) depend completely on your bearings and the levers. So stiffness and precision require really good compnents or will easily be compromised or lowered a lot over time. But still a really cool motion system with a lot of free space! Nice!
This is good design. Efficient use of space, and the structure is easy to make rigid and accurate. Also easy to increase the parallelism for accuracy if supporting too much mass at the toolhead. Kudos!
Anything but "easy to make rigid". Levers meeting in the middle at joints are just about the most impossible thing to make rigid. These machines *look cool* but there's a reason they're not widely used.
Super simple presentation. Your song fits perfect with the video. It seems to be something from the future. Congrats ! I'm waiting for a 3d printer using this system of movement ;) P.S. I watch this video every day just to hear your music.
Your videos are always so clean I honestly ask myself if they are made through a CAD software or with a camera. Anyway, it's always a pleasure to watch your work. It's really inspiring and beautiful. Keep the magic ;-)
AWESOME work, you are the human perfection you represent the biggest inspiration for do the things RIGHT, thank you very much for inspirating me and sharing your work
@@OleksandrStepanenko I think pd is misunderstanding the design. Correct me if I'm wrong but there is no "rotational joint (spherical joint?). All joints are single plane pivot joints like a door hinge.
Everything about your short demonstrations is just perfect: the mechanisms, the material colors, the lighting, the sound and background music. **chefs kiss**
looks interesting! was thinking if this structure can be used on a 3d printer to increase high speed printing quality! do you plan to share the details of this implementation?
It occurred to me that if the arms and linear sections could be easily detached, this would make for a pretty incredible portable robot. (For larger versions, the two horizontal linear sections would just need to swing up and the arms only detach from the head. The upright section would be mounted to a handcart with a winch to raise the whole thing as high as needed. This would allow for easy transportation and use on any elevated surface.) Does that make sense?
Yes, but in this case, it would be much easier to use a simple gantry robot. The only advantages of this architecture are high speed and high acceleration due to the low masses of the moving parts.
I want to see you *try to make something look like cgi, before ruining the illusion Best i can think of is hiding wires behind a thick part of the mechanism and letting it run before moving it slightly and tilting the camera to show the corner of the table, framing it as an accident
@@OleksandrStepanenko so this is a simulation then? Or did you mean that you used motion analysis for the mechanical design? If so what are you actually using to program and control the real world servos?
@@zanecook4402 No, everything is real. I only used motion analysis to create trajectories for the motors (generate trajectories for the real robot from animation).
Good question. Rigidity is not the strong point of this type of robot. It's mostly about moving lightweight payloads very fast with very high accelerations.
In 25 years every house will have a room with one of these only ten time bigger, manipulating an exoskeleton. You pop into that thing, put your VR glasses on, and you can walk, run, jump, feel pushed, thrown, shot, driving a car on bumpy roads, you name it.
There are no motors in the arms. This system has 3 motors (look at what the cables are connected to). These motors turn ballscrews that move the slides on the rails.
I know its not CGI because i watched many videos of yours. but why are the shadows "lagging"? why is that? im really currious because i know of no way shadows could "lag" the only way i could think of is because of compression or something
Amazing work. Based on your design, how do you go about calculating the required length of the arm segments, and/or how do they relate to the expected working area/volume?
Congratulations! a nice video and a very clean solution! is the cad model available? what is the right tool to simulate the workspace of this kind of robot?
Thanks a lot! You can find the CAD models here: grabcad.com/oleksandr.stepanenko-1/models This particular robot is not uploaded yet, but you can easily assemble it using the CAD of linear modules available. SolidWorks is the right tool to estimate the workspace.
Oleksandr Stepanenko я производил примерно тоже самое... несколько лет назад. У меня называлось конструктор роботов и станков с чпу . ) железок часть есть на канале .... но увы было и прошло) тебе успехов и открытого доброго сердца!
@@robocook74 Спасибо, Сергей. Очень понравилось, как реализован механизм редукции через винт в роботе, никогда такого не видел! Станок так же впечатляет!
Yes. There's been several iterations of variations on a theme. Our erstwhile host has made what is absolutely the simplest of those. They provide the promise of extreme accelerations, repeatability, and "speed" for FDM systems, amongst other things.
Considering the University that initially developed the design, you're likely to be able to do the other two. Which is fine. There's some, however, that're in pursuit of *insane* speeds and accelerations for 3D printing systems...this is a promising one in this regard. Especially HIS rendition thereof.
Это что, можно одним мотором подвигать, и не надо будет компенсировать напряжения в конструкции другими моторами? И напряжения не возникнут ни при каких условиях?
