I have to admit i had to google the stellar engine thingy and it kicked up many hits with reference to "Vespa" motorbikes......... now i do in fact own one of these beasts and there is infact plenty of place to mount the EAS .....however the vibrations will in no doubt cause much movement of the Aluminium dust (not Aluminum) and cause "Auto delete" or "Auto Reset" of the screen.
The Aluminium dust is a VERY messy substance and cannot be removed very easily from objects outside the EAS environment. (case closed)
One idea would be to draw circuits underneath and somehow connect wires to the aluminium dust traces.... there must be some idea there that has not been exploited yet.
maybe some kind of programmable capacitance plate type thingy.
Wot.... 'oh my' i should have researched parallax before i started..... Yes just checked its data base and he has posted a neat walkthrough here PropEtcher. complete with circuit diagrams .
I was already calculating how to wire up my SN754410 quad half-H drivers for my larger version......so now the job will be a synch.....
+Plus factor, this one is based off Turtle OBJ which i will need for another project in embryo stage.
Erasure is not so straightforward - linear rotation seems not to be enough - it requires a circular movement around the Z axis to give even layer of dust.
I had to double take when i saw the pattern he posted (with deadband removal)
One idea would be to draw circuits underneath and somehow connect wires to the aluminium dust traces.... there must be some idea there that has not been exploited yet.
You could, of course, indirectly connect, i.e. draw circuits and read their pathways with a simple optical sensor that senses reflected or absorbed light. You probably have these sensors on several of your cool robots! Try a SFL lens to improve resolution.
Excellent. Now add a moving spear of sunlight, properly aligned to chronicle the motion of both the sun and moon, and you have matched the "Sun Dagger" technology of Chaco Canyon's ancient Anasazi, circa 1000 AD.
There are a lot of smart people here. Now who among us knew anything about the 18.6 year lunar standstill cycle? I didn't, but those crafty Anasazi did! http://en.wikipedia.org/wiki/Lunar_standstill
I guess the TSP guys were also around during this time period......if you look closely at the "Sun Dagger" picture its made up of "Dots"
Dots are what i need for the next stage........
ie take a picture - reduce it to field of dots - apply the Travelling Salesman Protocol to the dots finding shortest best continuous line to connect all of them - then launch the steppers into action....... It has been done before (not sure about Propeller version though) .... its just a long term wish at momo.
Comments
The Aluminium dust is a VERY messy substance and cannot be removed very easily from objects outside the EAS environment. (case closed)
One idea would be to draw circuits underneath and somehow connect wires to the aluminium dust traces.... there must be some idea there that has not been exploited yet.
maybe some kind of programmable capacitance plate type thingy.
I was already calculating how to wire up my SN754410 quad half-H drivers for my larger version......so now the job will be a synch.....
+Plus factor, this one is based off Turtle OBJ which i will need for another project in embryo stage.
Erasure is not so straightforward - linear rotation seems not to be enough - it requires a circular movement around the Z axis to give even layer of dust.
I had to double take when i saw the pattern he posted (with deadband removal)
attached below is mine (raw with deadband :-(
Here is the latest twist to my EAS work ...
Displaying SVG (Scaled Vector Graphics) to the Etch-A-Sketch :-
SVG Graphic produced with "Inkscape" Data displayed on EAS
This is just the rough and ready version - now creating a Parser for the SVG data (SVG protocol has a couple of tricks up its sleeve)
http://www.jqjacobs.net/southwest/chaco.html
There are a lot of smart people here. Now who among us knew anything about the 18.6 year lunar standstill cycle? I didn't, but those crafty Anasazi did! http://en.wikipedia.org/wiki/Lunar_standstill
Dots are what i need for the next stage........
ie take a picture - reduce it to field of dots - apply the Travelling Salesman Protocol to the dots finding shortest best continuous line to connect all of them - then launch the steppers into action....... It has been done before (not sure about Propeller version though) .... its just a long term wish at momo.