Yey... feedback. 
So.. one at a time:
@lusian - thanks - this link should be beter.
@Knightrous - Thank you!
Welcome to the forum i guess. 
And yes, i will make the code public, i think
that is the essence of the Arduino. Fell free to ask if something seems weird.
@marcuschan - Thank you!
And yes, future development is planned. The pen was mounted just to visually show what it can do.
@tinkermonkey - Thank you!
The code is posted now.
@focalist - Thank you!
Of course i know that project, at first i was simply amazed because i thought that the marker was hanging
in the air with a magnetic field. Congratulations. After i've looked closer (and listen your comments) i've
figured out what's the deal. Very nice, and very precise. And a very nice name too
To the chase now:
-
"How are you compensating for the difference in distances radially (in that a movement toward the center is "smaller" than a movement further away)?"
This i don't understand. If you can explain further please, i will be happy to reply. -
It's so nice that your system is in a plane (like xyz plane, sorry for the english) so you only have x and y to mess with.
That simplifies the process. I was thinking about stretching of the wire, but you said that you use fishing line, so most
probably that isn't a problem. -
Yes, mine is faster, but with some costs. I can actually decrease the speed, and that makes it more accurate, but..
i have a new problem: servo jitter. And that makes the drawing very not cool. The current speed is a compromise
between speed and accuracy. For the future i have in plan a dedicated servo-controller. -
Bouncy'ness
. I was thinking. What about my quick sketch (the second attachment)? -
Thank you again. I worked very hard on this.
So the code is now public.
Notes:
I admit that the code is improvable. I have changed my mind several times
during the design, and that is reflected in the code.
Special thanks needed for this code go to: mzavatsky and jarkman especially.
deltaBot.rar (12.5 KB)
