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The "Artist" robot



  • ercoerco Posts: 20,222
    edited 2015-01-05 10:41
    Has anyone actually created any Binford-brand products yet? There's an opportunity staring us in the face.
  • NikosGNikosG Posts: 705
    edited 2015-01-06 03:06
    erco wrote: »
    ... A figure 8 drawn by your Artist robot will be a thing of beauty!

    erco, this is for you!

  • Tony B.Tony B. Posts: 356
    edited 2015-01-06 04:52
    In a word AWESOME!

    It's a delight to see your hard work take flight or should I say, SPIN around?

    OK that was bad.

    Thanks for Sharing.
  • zappmanzappman Posts: 418
    edited 2015-01-06 05:37
    An excellent eight, from an excellent robot.
    The quality of your work is amazing.
  • GarethGareth Posts: 278
    edited 2015-01-06 06:23
    Nice one Nikos ...... you have raised the bar to new level......(even worse for us you achieved it on carpet).
    Regards G
  • ercoerco Posts: 20,222
    edited 2015-01-06 11:00
    C'est belle, Nikos!

    L'Artiste parle le francais aussi, oui? Tres bien, mon ami!

    Nice 8, but you better vacuum up that chalk off the rug before the wife comes home! :)
  • PublisonPublison Posts: 12,366
    edited 2015-01-06 11:17
    Looks like he put craft paper down to save him from the wife's wrath. :)

    Guess not, I saw a seam a 1:28 thinking it was paper.
  • NikosGNikosG Posts: 705
    edited 2015-01-07 05:16
    Cleaning was extremely easy!

    Only one passing with vacuum was enough!

    In Greece we say: “Ούτε γάτα ούτε ζημιά” = ”No cat, No damage” = “no harm, no foul” :)


    However I’m thinking to buy a piece of cheap black carpet for Artist’s tests….
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  • ercoerco Posts: 20,222
    edited 2015-01-07 08:47
    So now you need a Roomba (robot vacuum) to follow the Artist doing a figure 8. That's almost vandalism, destroying fine art like that!
  • NikosGNikosG Posts: 705
    edited 2015-01-12 06:37
    erco wrote: »
    So now you need a Roomba (robot vacuum) to follow the Artist doing a figure 8.

    I think this is a job for the Artist's twin brother.......
    It would be amazing if this second Robot could move on the same path as the Artist ( after a period when Artist finish a drawind) and could erase the chalk traces .....
  • NikosGNikosG Posts: 705
    edited 2015-01-17 05:28
    A new video with the Artist drawing a "flower"....

  • ercoerco Posts: 20,222
    edited 2015-01-17 06:12
    Beautiful flower, Nikos. Great job!
  • zappmanzappman Posts: 418
    edited 2015-01-17 07:34
    Nicely Done, Great Job Nikos!
  • PublisonPublison Posts: 12,366
    edited 2015-01-17 07:39
    Now you're just showing off! :)

    How many figure-8's was that?

    Now, mount one of erco's flame thrower, and print that on ice. (It reminds me of skaters).
  • NikosGNikosG Posts: 705
    edited 2015-01-17 11:26
    Publison wrote: »

    How many figure-8's was that?

    It was 12 asymetrical figure-8's.

    After each figure-8 the Robot makes an arc about 30 degrees and then again a new figure-8 and a 30o arc and so on... 12 times.

    Here is the algorithm:

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  • WhitWhit Posts: 4,191
    edited 2015-01-17 17:30
    Great stuff Nikos! Very impressive "scribbling!" I love the flower
  • NikosGNikosG Posts: 705
    edited 2015-01-24 16:37
    Before go to the last part of the project (the drawings programming),
    I think is useful to give some more information about the painting mechanism, and how someone can use it with a different way
    (e.g. using a marker) or with a different robot eg. the original Stingray robot.

    First you must print the mechanism parts from
    I uploaded project with the name “Chalk painting mechanism” here.

    You can divide the mechanism in 3 parts:


    The first part is optional and is the feedback mechanism. You can see more about this on post #80
    The main body is the second part. This part is necessary for both options (chalk and marker).
    You ‘ll need the third part only if you use chalk.
    Edit: If you want to use a marker instead of the chalk, then completely ingnore the "C. parts".

    In the next posts I' ll give the assembly instructions and some examples with use of marker.
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  • TtailspinTtailspin Posts: 1,326
    edited 2015-01-25 22:30
    Some mighty fine work NikosG,
    Makes me want to get a 3D printer.

    Keep up the good fun. :)

  • NikosGNikosG Posts: 705
    edited 2015-01-26 13:02
    Ttailspin wrote: »
    Some mighty fine work NikosG,
    Makes me want to get a 3D printer.

    Keep up the good fun. :)


    3D printer is actually a powerful tool......

    However you must pay attention what 3d printer you'll buy...

    Here is a new video that shows the assembly of the painting mechanism...

  • NikosGNikosG Posts: 705
    edited 2015-02-15 01:18
    If anybody wants to use the painting mechanism using a marker instead of a chalk, is very easy.

    As I said before on post #108 you need only the parts B and A (optional).

    As you can see in the next image I have completely remove the “chalk holder” (part c).
    Instead of the “chalk holder” (part c), you will need a marker and a “marker holder” in order to adapt the marker into the painting mechanism.


    I made this “marker holder” with me 3d printer and here is how it works: (extremely easy installation).

    First we adapt the marker into the “Marker holder”. Then we simply adapt the marker with the holder into the up & down mechanism.
    (Note: you can change the internal diameter of the “marker holder taking into account the marker you use. However the external diameter will be constant)

    In the next post I’ll show the installation of this marker mechanism on the original Stingray robot for indoor painting……..
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  • ercoerco Posts: 20,222
    edited 2015-02-15 10:34
    Great job, but but how will your wife get the marker stains out of the carpet? :)
  • Martin_HMartin_H Posts: 4,050
    edited 2015-02-15 16:18
    That's a really nice robot, and great job with the drawing.
  • NikosGNikosG Posts: 705
    edited 2015-02-16 04:44
    erco wrote: »
    Great job, but but how will your wife get the marker stains out of the carpet? :)


    Maybe another type of marker, like the “Erase Liquid Chalk Markers” can save me from trouble !!!

    P.s your new avatar is very cool!!

    EDIT: Ken introdused the best carpet destruction ever!


    After that, chalk and marker are nothing....... :)
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  • NikosGNikosG Posts: 705
    edited 2015-02-18 05:11
    Installation of the “marker mechanism” on the original Stingray Robot

    The installation on the original Stingray robot is very easy and is remarkable that after the fist installation you can change multiply markers without opening your Stingray robot.
    However you must pay attention where you will adapt the mechanism.

    As I have already explained on post #26 the rotation center of a robot is the best place for the painting mechanism.

    Unfortunately the center of the hole that has the chassis of the Stingray robot is not the rotation center of the robot. The rotation center is in the middle of the Axle that connects the two wheels of the robot. This axle doesn’t pass through the center of the hole.


    As you can see the rotation center of the Stingray is somewhere in the upper part of the hole.
    So if we want to place the painting mechanism exactly on the rotation center we must move it a little bit forward leaving a gap.
    Before we adapt permanently the mechanism we must be sure that the nose of the marker is exactly on the rotation center of the robot.

    Another good feature of the “marker mechanism” is that we can easily remove the marker from the robot and we can replace it with another without opening our Stingray robot!
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  • ercoerco Posts: 20,222
    edited 2015-02-20 13:27
    NikosG wrote: »
    Erco, ... your new avatar is very cool!!

    Thanks Nikos. My girls are redefining robotics for me, now I realize that function is secondary to bright colors. Lately they have fallen in love with rainbow ribbon cable. I must incorporate that at every opportunity.

    BTW, your Artist robot is fabulous, but it does need some color. :)

  • NikosGNikosG Posts: 705
    edited 2015-03-09 12:08
    The Greek robotic portal GROBOT.GR host an article about the "Artist" robot.

    Here you can read the article about the "Artist", in Greek language:"Καλλιτέχνης" : Ένα ρομπότ κιμωλίας με επεξεργαστή τον Parallax Propeller
  • WhitWhit Posts: 4,191
    edited 2015-03-09 19:52
    εὐαγγέλιον! - That is my kind of Greek! ;-)
  • ercoerco Posts: 20,222
    edited 2015-03-09 22:31
    Very nice, Nikos! Great PR for you and Parallax!
  • NikosGNikosG Posts: 705
    edited 2015-04-03 10:52
    And some public events with the "Artist" in the first place!

    My students (3rd General Lyceum of Patras) and I, had the opportunity to participate on the 5th Digital Student’s 3–day Festival that took place in several Greek cities and some islands. (Thursday, Friday and Saturday 2-4 of April 2015)
    We had two presentations of Patras festival (Thursday 2 of April 2015). The one with the title “programming the S2 Parallax robot” and the other “dancing with the robots” and of course we have and the "Artist" on our show!
    The oficial presentations broadcasted on-line to all the country and one copy of the first day presentation's video is here: (we start at 5h 9m 43s) :
    We also created a kiosk with Parallax robots, performing several activities.
    “Neil’s Maze with S2”, “Synchronized Hokey Pokey ballet with 4 S2 robots”, “Evdokia’s Zeibekiko (sound and dancer’s drawing) with S2 robot”, Drawing sport teams logos with s2, and of course a show with the “Artist” robot (remote control, music and chalk painting)

    Parallax robots stole the show! My student’s had such enthusiasm and they convert the festival to an exhibition of Parallax robots!

    The event took place on media and newspapers. Here is an article from “Peloponissos” newspaper.


    Tomorow is the last day of the festival. Will be there.....!
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  • WhitWhit Posts: 4,191
    edited 2015-04-03 12:20
    Great stuff Nikos! Super photos and video!
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