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PiCasso Design Challenge

9 Posts authored by: dubbie
My unofficial attempt at the Picasso Design Challenge is coming to an end, which is good as time is running out. I have connected everything needed to the Raspberry Pi 3B+, NOOBs SD card, mouse, display, keyboard and power and now it is time to turn everything on.     Apparently nothing happened, but it was just taking a few seconds to get going and put something on the display, because as soon as I stopped the video, the display sprang into life! I then had to setup the system - wh ...
After a hiatus in order to work on other things, including sitting in the sun as in the UK if the sun shines then you have to go out in it as it might not be shining the next day, or the next week! I have done some more work on my unofficial entry into the Picasso Design Challenge. I have managed to fix all the PCBs and strip boards to the underneath of the display, using Bluetac as there isn't much time left to do anything better. They seem to be secure but I'll have to see if they will stay th ...
For my unofficial Picasso Design Challenge I needed some more ABS filament for my 3D printer in order to complete the fourth motor unit. The filament turned up yesterday, all the way from America, and expensive! but I knew that when I bought the printer. After 3 hours I had managed to get my printer going again. I had used almost all my previous filament to make three motor units and it transpired that there was only about 5 cm of filament left, which was of course inside the feed tube. Withdraw ...
In my unofficial attempt at the Picasso Design Challenge I have made some progress and I now have two motor units fixed to the display screen. I did have some problems in drilling the acrylic sheet used to make the holder for the display as it is very brittle. I cracked both of the back sheets that make up the four layer holder, in three different places. I thought I had placed the sheets onto a stable flat surface before I started drilling, but unfortunately I forgot that I was resting the disp ...
Work on my unofficial entry into the Picasso challenge has been continuing, even if a little slowly. After a great deal of messing around and redesigning I have finally managed to design and 3D print the two plastic holders for the stepper motors that I have decided to use for my HoloPiBot. Because of the all the practice of making parts for Project14 activities I am getting much better and quicker at creating them. Still lots more to learn yet, such as tolerances when parts have to fit together ...
For my unofficial contribution to the Picasso Design Challenge the holonomic mobile robot will support or carry a colour graphic display showing the magnified image of the artwork that is underneath. The four corner direction and drive motor units will maintain the orientation of the display as it moves about over the artwork. I haven't yet decided on how the movement should be controlled, it could be some systematic approach, or maybe random or even allow some user interface, perhaps via WiFi o ...
For my unofficial contribution to the Picasso Design Challenge I am planning to create a holonomic mobile robot which is one which can move in any direction but always maintains the orientation. To do this I am planning to put a step motor on each corner of the chassis. The four step motors will be calibrated to always point in the same direction and then will always move the same number of steps. In this way, hopefully, they will always all be pointing in the same direction. On the shaft of eac ...
As I didn't want to be an official entry to this PiCasso challenge I have waited until the official contestants have been announced (well done to all of them) in order to avoid muddying the waters, so to speak. At the moment I'm still not sure what all of them will be doing so if any of my ideas clash just let me know and I'll do something else.   As I really like mobile robots (I really really like mobile robots) I wondered how to incorporate a mobile robot into this challenge. My idea is ...
I am thinking of having a go at the Picasso Design Challenge but have a fundamental problem. I have never successfully used a Raspberry Pi of any description, despite having organised two Christmas Raspberry Jams. All I did at the Christmas Raspberry Jams was to dress up as Santa Claus and hand out sweets to all the children, my colleagues did all the heavy technical work. I did try turning an LED on and off for the first Christmas Raspberry Jam as everyone said how easy the Raspberry Pi was to ...