Artistic Electronic Sculpture in 3D movement
Hello friends, I like to drive +- 50 small motors to move a small ball or others objects up and down with a nylon wire (max 10gr) with a vertical distance of 2 meter . I need to control the exact distance of each object and to synchronise all motors to make some figures pre-programmed on 3D position up and down of all motors!
Hello friends, I like to drive +- 50 small motors to move a small ball or others objects up and down with a nylon wire (max 10gr) with a vertical distance of 2 meter . I need to control the exact distance of each object and to synchronise all motors to make some figures pre-programmed on 3D position up and down of all motors! Sorry for my bad English, If it's more easy for you in French, this is my mother languish. Please use French in case... If you know some schematic or the theory to help me to make this kind of project, will be great, may be with Arduino and stepper motor with encoded wheels. I'm open to all suggestions, Thank you, Marc from Belgium
Discussie (4 opmerking(en))
Koen 11 jaar geleden
Beckhoff has done something similar in Changi Airport, Singapore with 1216 axes.
In the article http://www.pc-control.net/pdf/012013/solutions/pcc_0113_cover_e.pdf you will also find some information about used hardware.
MarcD 11 jaar geleden
olimag 11 jaar geleden
MarcD 11 jaar geleden
ClemensValens 11 jaar geleden
Toshiba has demonstrated a nifty brushless motor controller that allows precise positioning without the use of sensors. A contest is currently in progress on this very same site based on this stuff. The contest page is in German, but you can click the links (see the 'post-it' on the home page).
You could also imagine a system with only one motor, a long spindel and a clever gear system that allows you to connect each channel (nylon wire) individually to the spindel to move in both directions up and down.
Regards,
Clemens
petrus bitbyter 11 jaar geleden
Don't complain about language. Your English will be better then my French so let's keep it. Unless you want to learn Dutch :)
First thing that comes to my mind: 'What's your budget?' Fifty small motors with a winch. Able to turn left, right or not at all. With two end switches both for safety and for synchronisation. Some sensor(s) to count revolutions as you want to keep track of the heigth off your load. If it is available as an off the shelf unit it will not be cheap. And you need to multiply by 50. If not available as an off the shelf product you'll have a lot of mechanical work to do.
Suppose you will control a 7x7 arrray of motor units. You can control every unit with a micro but that looks like some overkill. As you will need three I/O pins per unit I expect you to be able to controll seven units by a twentyeight pins micro. Expensive? I expect the seven micro's to be cheaper then one motorunit.
The micros will get their commands from a central computer by a serial link. Async, I2C, SPI or whatever you have available. That parts are available on the net in various tastes and seizes.
You can think about controlling the motors directly from the main computer but controlling a hundredandfortyseven I/O lines by one processor directly does not look like a good idea. FAIK there are no general purpose computers with that many I/O lines on the market. So you'll need a bunch of electronics anyway. There are industrial computers off course but they are not cheap either and you will nevertheless need a general purpose computer to compose your sculptures.
petrus bitbyter
MarcD 11 jaar geleden