Direct drive SCARA robotic laser plotter test
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- čas přidán 12. 09. 2024
- Home-made direct drive SCARA robotic cnc laser plotter.
Components: old printer dc motors without gearing, AS5311 magnetic encoder,
1 W 808nm laser diode, mosfet driver, like this:laserpointerfor...
My idea is that neodimium-electromagnetic pen-holder, eddy current damping.
Kinematics and PID servo controls the LinuxCNC / EMC2 /.
Work area is about 100x100mm
Accuracy of about 0.05mm / laser
Accuracy of about 0.3mm / pen
Max velocity 2400mm/min
old printer dc motors without gearing?! Really impressive!! Wow!
Incredible results, congratulations!
Manufacturer: Austriamicrosystems, AS5311 and magnetring for AS5311:
AS5000-MR10-128 Magnet for Rotary Encoder
"Home / Products / Magnetic Position Sensors / Magnets / AS5000-MR10-128"
Pretty amazing, amazing speedness and precision
LinuxCNC includes kinematics: scarakins.
DC servo drives with eg. L298 H-bridge.
CONGRATS, no gear??? AMAZING, I cçan´t believe the precision, it looks like a stepper, I have dozens of those motors, can you explain how you controlled them?? can they be used with arduino???
Great project
This model of scara is useful for knowing the simple construction of scara for beginners ......
is it an l297/298 combo or is it just the l298? also are those steppers? if they're gear motors then it's a pretty impressive build! it's an impressive build regardless
Wow, I'm mostly impressed by the fact, that these motors can be controlled this precise. How did you find the right PID-Parameters?
Follow this site: PID Tuning - LinuxCNC org
1.3.1. Simple method
Required many experiments! Good luck!
hg5bsd Thanks :)
That seems to be simpler than I thought. I'm experimenting with control of geared DC motors using an AVR microcontroller and had also some work finding the right parameters. I hope i can find some way to make them really precise with good dynamic, your video is a very good inspiration for me :)
Can you say anything about the disturbance behavior? Since there's no gears the motors have not much torque, right?
Write me your email address
another great work. congratulations.
GREAT WORK!
would you be so kind to tell me a bit ore on the motor interface / Hall effect sensor circuitry? Schematic? Where do those rings which run on the hall sensors came from?
Thanks
wow, this is amazing!
diode and module from ebay,
driver like in the description
Awesome stuff!!
old printer dc motors without gearing - make me crazy.
very cool!
where I can download source code with circuit? :)
How did you wire up the AS5311 sensors to use them with EMC? Is the PCB layout freely available? Thank you.
Great!
Thanks!
Is it an PID servo with dc motors. No gear-motors! L298 dc H-bridge.
Add a fume hood and vacuum
Hello! That is great! Which software available for g-code creating? Or how to create g-code for this robot?
Szia! A vezérlést a Linuxcnc software csinálja, a PID szabályozást is beleértve! Nagyon szuper, de párhuzamos port kell hozzá. A rajzból dxf formátumú vektor grafikát kell csinálni, ezt megeszi pl. a CamBam progi és szöveges gcode fájlt generál. A trükk ebben a szerkezetben a kinematika, amit tartalmaz a Linuxcnc. És a nagyfelbontású jeladó, ami ingyen mintaként beszerezhető a gyártótól. Ha érdekel még valami, írj emil címet.
Üdv. József
how do u know the exact angle
Kinematics bro
I'm confused: on AMS site there is info that minimum magnetic pole lenght for AS5311 is 2.0mm, but the magnetic ring you use has 1.0mm pole lenght per magnetic pair:/
Einseitig magnetisiert
Material: BMNP-8L
128 Pole magnetisiert
Pol-Länge: 1 mm ---- one pole, pole pair (1mmx2) = 2mm. This is ok.
Hanzhen harmonic drive gear , machine gear reducer, over 30 years experience , robot gear
Is it possible to get 180000 ppr from this AS5311 setup ?
Thanks.
There are 4096 pulses (12-bit) per 2.0 mm pole pair length on the standardized quadrature output interface
hi, help me please, where can I get the magnetic ring?
OK, write me your email address!
hg5bsd c.masseratti@live.com thanks so much!!
Share the connection encoder. Interested in contact CSn
+MrAllimp Hello!
Note that Pin 14 (CSN) must be low to enable the incremental outputs!
If you need draw of pcb, write my your email address.
Greetings
Jozsef
+hg5bsd : Great work and the resolution looks fantastic! If it's available, could you share the closed-loop control code that you used? I'd like to reproduce something like this, and it would be great to learn from a successful example, even if it is rough. My email is: thomaserikssen02@gmail.com
Hi ,Can you help me make that machine ?
Write me your email address
nguyenapolo24h@gmail.com (thanks)
Hi sir. I am Vietnamese. Your project is amazing. I have the same design and alredy finished the frame of this scarabot. I try to find the open-souce code for it but it seems to be impossible. Could you please share me the adruino code and the software control. I am just beginner in this field. My email: anhduc88nb@gmail.com thanks for your sharing
bạn có thể cho tôi hướng dẫn làm máy này không? địa chỉ email tôi binhhd2567@gmail.com
thank.
Like for Linux!!!!
Parallelport inputs use.
Write me your email address!
where can I get the magnetic ring ?
Write me your email address
Write me your email address /József Papp/