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Alexandru Babaian
Германия
Добавлен 27 сен 2012
Видео
SCARA arm with closed loop stepper motors.
Просмотров 9 тыс.6 лет назад
I updated my SCARA arm by installing some closed loop stepper motors. Now I can limit the torque of the motors but still keep track of the positions of the arms. PID coefficients still have to be tuned and I will have to decrease acceleration just because the construction is not quite stiff.
First moves of my SCARA arm.
Просмотров 33 тыс.6 лет назад
This is a replica of SCARA robotic arm by Idegraaf. www.thingiverse.com/thing:1241491 Finally made it to move correctly.
Asembled PCB made christmas tree decoration
Просмотров 3856 лет назад
Christmas tree decoration made out of printed circuit boards for Elecrow Christmas PCB Contest. The boards was manually depanelized and soldered in a shape of a lantern. On the top square pcb an RGB LED have was mounted in order to illuminate the inrerior of lantern. Due to the fact that 0.6mm pcb's are quite transparent, images printed on copper layers, solder mask and overlay layers will be c...
Doppler effect radar.
Просмотров 2517 лет назад
I was building a FMCW radar. Here is the testing of antenna, mixer and frequency synthesizer.
Elevator main controller board.
Просмотров 2,5 тыс.7 лет назад
Elevator controller board. - 16 output channels high side drivers with diagnostics and protection - 16 digital input channels - 1 analog output (configurable voltage/current -10V to 10V or 0-25mA) - 1 analog input (current 0-25mA or voltage 0-10V) - 3 RS485 channels - 4 output channels to supply slave modules ( with diagnostics and protections) - ethernet module - GSM module - 16x2 display
Buttons controller board.
Просмотров 777 лет назад
The board based on STM32F0 microcontroller. It's indended for interfacing elevator buttons, led's and display to RS485 bus.
Elevator cabin controller board. Atium video render example.
Просмотров 1427 лет назад
Elevator cabin controller board.
PCB made christmas tree decoration.
Просмотров 4037 лет назад
Christmas tree decoration made out of printed circuit boards for Elecrow Christmas PCB Contest. The boards have to be manually depanelized and soldered in a shape of a lantern. On the top square pcb an RGB LED have to be mounted in order to illuminate the inrerior of lantern. Due to the fact that 0.6mm pcb's are quite transparent, images printed on copper layers, solder mask and overlay layers ...
very good
Hanzhen harmonic drive gear , over 30 years experience , robot joint , strain wave reducer
Hi, Thanks for sharing the videoo. I have a problem with a similar arm which I have made with the exact similar architecture as this video: Movements of links 2 and 3 are not independent. That means when I command motor #2 to move link 2, link 3 also moves relative to link 2. I guess this is the reason why the final sketch drawn by my robot gets screwed up. Did you have a similar issue ?
Hanzhen harmonic gear , robot arm gear , joint gear , over 30 years experience
Can you please you please help me to make a code for dmx stapper motor with encoder
hi make but it dosent work can u help me? it will write but have some mistake with writing
bruh its 3d printer working in 2d
かわいいね動作が、、なの
I’d like to build such arm, how have you made it so accurate? Could you open source the project software? How to generate GCode for it? Does it have some grbl software equivalent?
Please read the other comments before. I described it there. It is running marlin software with configuration described in the comments
Which microcontroller have you used for this robotic arm?
Hi. Source code pls.
I just discovered this. It's really great. Are you by any chance also sharing the design files or only the gerbers?
The design was done in Altium Designer. As far as I remember, it was quite tricky to modify due to a lot of the details in the image. Anyhow, I will try to find the original files in my archives and post them somewhere.
What firmware/hardware were you using?
arduino uno!
WOW
What did you use to get it to plot? I have gotten it to move using Pronterface but I dont know how to make it draw something. Any help would be great!!
Looks like it is just running 3D printer gcode tbh.
Hi, good job bro, i´m doing the same project but i have some problems with the marlin´s configuration , (I´m using the marlin from ttsalo) when i start to print using proterface, it says that the printer stopped due to errors of temperature, how did you delete that part of the heatbed and all that things? just for use a marker or pen like you. Thanks for answer me.
Be careful because he will grow up someday and give you leson :D :D
ruclips.net/video/epIHbMrfiRw/видео.html Need help I want to print draw exactly what you drew just to see if my machine is working right don't know where to begin can you post Marlin firmware setup
Please explain ,how elevator bord work,,,
could u share the marlin you are using please? szlmauricio@gmail.com
That looks really good! How did you do the closed loop steppers? DIY or off-the-shelf? I would love a link.
It uses mechaduino motors. You can check it out. It's an open source project.
How much would you say it cost you to build this little guy?
Very nice project sir, smooth moving..What firmware do you use?
looks like 3d printing firmware , due to the nature of the drawing looks like its drawing infill layers
Can send me price sir
Very Nice project, it's very precise? I think it require more reduction
Ola! teria com me enviar este código?
como configurar esta impressora?
hi, nice work. I am currently doing the same project. May i know where did you place your endstop? thank you
I don't have any endstops right now.
I already test the ttsalo firmware and I use your marlin configuration but when try to test for instance cube square of 20x20mm the arm draw a square but oblique it seem that somthing is wrong. I can't understand this line of marlin define SCARA_MOVE_APPROX_LEN 1.0 Maybe is this make the configuration wrong because the step per mm is ok. Other thing is which is for you the motor that move x axis and y axis
Check the deffinition of manual home position and the actual position of the arms when you apply power to the board.
puedes ponerte en contacto conmigo para ayudarme con mi scara?
Can you use an Extruder on this one? I just 3d printed one out. Thank you
I guess yes but I haven't try that.
Other thing that I must to do is to connect a thermistor in the ramps boad, because if I didn't connect it the marlin show a error.
Have you try the wangsama firmware ?
no
Hello from Spain. I'm become crazy with the configuration of this arm. I'm try with marlin of vitaminrad. Which firmware are you used? And where are you install the endstops? and the last question which is the step per mm that you are calculate in my case is 200 x 16 / 360 x 3 = 26,66. 3 is gear reducction . Please I 'm glad to find somebody that work in the same project that me.
Hello. I also had a lot of problems with the software for that arm. I also tried marlin from vitaminrad but I had a lot of issues with homing procedures. I tried a lot of different positions of home switches but I have problems with trajectory of arms during homing. The arm just collides with itself before reaching home or goes over the max reach. Now I am using marlin from ttsalo. The homing there is not implemented ( it's manual) but it's not a big problem for me. Anyhow I am working on adding some positional sensors to the arm and writing my own software for it ( I don't intend to use it for 3D printer). I guess the software from vitaminard should also work but I could not configure it properly. Gear radio is 3.1 therefore steps per mm are 27.55555.
Thank you very much for you replay, I will try the ttsalo marlin version in my scara arm, but I don't understand some data of the configuration because I thought that this arm is a single arm no a parallel as the version of marlin ttsalo. +//// SCARA settings++// Arm segment lengths+ #define SCARA_SEG1_LEN 100.0+ #define SCARA_SEG2_LEN 150.0++ // Rotation axis Y position+ #define SCARA_AXIS_Y -82.0++ // Arm base axis separation+ #define SCARA_AXIS_SPACING 75.0++ #define SCARA_MOVE_APPROX_LEN 1.0 For instance scara_axis_y is the offset ? The spacing how calculate this and the last scara_move_approx_len? I'm sorry but I don't understand. Thank again for you replay and need make run this arm because now is my personal target.
This is a parallel scara arm. The angle of second linkage is not determined by both motors (like in serial scara). If you turn only first linkage (closest to the base) the second linkage will just translate and remain parallel to it's initial position.
Thank for you explanation about the theory of this arms but I only work with cartesians printer, maybe the problems that I have had during this time it has been this. I 'm going look for information about the parallel scara and I try to learn for myself a little bit more about this robots. Thank you and let me ask you if I will have problems, ok.
Today I try the firmware in my robot arm and I have one doubt, the distance between axis in this scara rm is 0 isn'it?
Very nice! Where did you get plans? Is it using belts?
Thank you. The plans are from here: www.thingiverse.com/thing:1241491 The arms are driven through belts but there is a mistake in a design. Standard 160 and 320 teeth belts are sightly too small so I had to make my own belts with 162 and 324 teeth. Now I am working on adding positional sensors to the arms.
Hello can u send me your email pls
alexandrubabaian(at)gmail(dot)com
Hi, please contact me I would like to know your progress, I am designing a similar board and I might be interested on yours if available.
w18593323
at google
could u contact with me about board