Ich habe auch so ein ähnliches Gerät gebaut und würde mich interessieren, ob die kleineren Drehscheiben ein eingebautes Getriebe haben. Sind da Zahnräder drinnen verbaut?
Laynie Fingers If the 'rules', or the speed of the motor and other factors like the diameters of the circles and linking are not changed during the operation, ideally it would repeat. But the pen is not copletely accurate and the links can move so it may not repeat itself.
It's amazing how simple non linear systems can produce such beautiful images. Probably it's no coincidence that these drawings look so much like those "flames" fractals.
I like that the machine hiccups in places, creating these breaks in the perfect rhythm of the lines. The ink flow stuttering is also nice, keeps it from becoming too mechanical.
I'm doing parametric modelling for my architecture now and these forms are amazing! Out of curiosity, after a long time, will it repeat the same thing again? or is it forever drawing a new line?
@alfredhoehn Hello Alfred, I understand the mechanics but how do you achieve the continuous offset? how come does the pencil not following one and the same line? therefore... how do you set the distance between the single lines? does the speed of one of the spindles changing continuously? thank you kindly
Excellent!! Superb!! It is very interesting how easily and how fast you can touch high complexity just by combining simple motions. How long doesn it take to repeat itself? When are these movenments periodic? -.
+Alfred Hoehn Thanks for the response, I was referring to the lateral motion of the pen getting wider, not the actual pen point. Instead of the pen going over the same line repeatedly, the motion is offset on each cycle. I might be over thinking it too much, I just can't understand why the pen doesn't just go along the same line over and over. Now that I've watched it over a few times I'm guessing it has something to do with the offset of the two disks.
Quick question, is there a motor or gear driving the small circle as well? Or, is the small wheel just fixed to the large wheel and its turning freely as the large wheels are being driven around?. Also, is there a ratio between how large small circles are compared to small circles? Amazing video!
I am using this as inspiration for a project I am working on now. I am at the stage of choosing the motors. Obviously our projects will have different torque requirements because of differing weights. (your spinning plate is metal and mine is light wood). How do I approximate the torque required to spin my disks and push my pantograph and pen along the paper, so as to choose the proper motor? Do I just use the weight of everything and the approximated friction of pen on paper? Thank you, your drawing machine is really incredible.
Will the machine's drawing eventually form a closed loop? To find how long before the loop closes, you would need to find the smallest number that all the periods of all the wheels divide into (I think). So if the large wheels' periods are 9 and 10 seconds, and the 2 small wheels' periods are 6 and 7 seconds, then what is smallest number that is multiple of all those numbers? How about 630? So after 630 seconds or 10½ minutes, the loop would close. Course, that's assuming periods are exact.
Hallo Herr Höhn, bestaune immer wieder ihre technische Professionalität. Ich möchte gerne die gleiche Maschine nachbauen und möchte sie fragen ob sie auch ihre Unterlagen zur Verfügung stellen können? Würde mich freuen wenn es klappt. Viele Grüße
+John Sorge,Send me an email and I will send you a VBA program for Excel that draws these designs to an Excel screen for HD multi-color printing on your printer. I could also send a spirograph simulation, a 3-pendulum 6-DoF harmonograph simulator, and a program that draws very complicated random designs.hrcarey@comcast.net. If you tell me your mailing address, I could send you a 13x19" print.
Hi Alfred, Do the two-disks on the rotating platters operate like planetary drives? Is the large disk the sun and the small disk the planet while the ring gear is not visible? Thanks!
Ha Rosamvietnam The Motor is a DC 12V Motor, made in switzerland and very expensiv. Each Whell has a Motor. The speed of the Motors does not change, but it's a few different. Thank You and best. Alfred Hoehn
With a lot of these type machines you get a kind of osculation, or geometric pattern and it's really uniform, but not very interesting. But this seems much more random. That's very intriguing to me.
The guilloch is soo awesome, this machine knows how to make universal geometry! Try the hub with different shapes, square triangle rectangle and see what happens..
If its possible, I would give You a drawing. But to send a big paper like this (70x90 cm), it is nearly impossible. Thank You for compliment. Alfred Hoehn
