Forum Replies Created
-
Posts
-
This article shows you how to connect up an ATtiny2313; the ‘4313 works identically:
http://www.evilmadscientist.com/2007/using-avr-microcontrollers-minimalist-target-boards/
No, not without extensive rewiring.
Not exactly sure if this is what you are talking about, but if you plot a circle on a spherical object (like a golf ball) it will come out circular, whereas if you plot the exact same shape on an egg, it will come out stretched, because of, well, geometry. Usually, you correct for this by stretching the initial figure by about 150% horizontally.
Yes, absolutely. Here’s a detailed tutorial, showing how to plot with two layers, to get two colors: http://wiki.evilmadscientist.com/Drawing_a_smiley_face
We use thick, gap-filling super glue. It generally works very well– and this part does indeed work indefinitely –if applied correctly, but it sounds like there was a batch of them that was not assembled correctly. :(
We’ll look into this on our end, and see what we can do in our process to make sure that this doesn’t happen any more.First, build up the Peggy 2 with the “SER” option selected.
Download Arduino and Processing. Download and install the Peggy2Serial library for Arduino.Use Arduino to upload the RecvSerial example sketch to the Peggy.(Examples> Peggy2Serial>RecvSerial)Open Processing, and run the included example sketch for sending webcam video to the Peggy.(Examples> Peggy2Serial>RecevSerial > Processing >MirrorPeggy3)One type of mechanism that you might consider is a solid state relay, one is rated to handle 12 V DC at sufficient current as your motor draws.
The input to control the solid state relay is usually (essentially) an LED, so if you can control the internal LED, you can control the motor, too.First off, as you know, setting a limit higher than 30 mA is not “officially supported,” but we’ll do our best to help you out. :)
For maximum current, solder together the two connected (or all three) pins of VR1 and VR2. Then, put the selected resistors (one per driver chip) into RA1 and RA2. We are not *aware* of anything else in the circuit that will prevent you from going all the way to 90 mA (besides the temperature of the LED driver chips in free air), but you are in somewhat uncharted territory.>Funny enough, the onboard Pi computer, at $35, is even less expensive than the EiBot motor controller board.
It never fails to amaze me how stark the differences are between the costs of things when you’re making hundreds (or even thousands) at a time versus millions.The instructions are in Part III of our essential documentation, the part about Making Your First Plot:
It’s very neat that you can run Inkscape on the Pi, and I’ve added a link to your Instructable to our wiki.
However, the Pi is indeed an external computer– a full featured, tiny and cheap computer– that communicates to the EBB through USB.It is possible to run the Eggbot itself in stand-alone mode by reprogramming the EiBotBoard to store the drawings and run them on its own. To do so is a bit more involved, and so we haven’t done much with this capability in quite a long time.If you do want to drill holes in the Eggbot chassis, you should take extreme care when doing so, because the chassis is made of fiberglass; drilling fiberglass will produce dust that you don’t want to breath.The shaft collar (the metal piece) is glued into the wooden part with superglue, and needs to not slip. You can either get some super glue and add repair it yourself, or write to our shop using the contact form ( http://shop.evilmadscientist.com/contact ) to request a replacement.
Wow– great! That’s a pretty strange bug, indeed….
The distribution includes the source code, and the image along with it. I would have guessed that the executable includes the actual “grace.jpg” image internally, and doesn’t look at the version from the source code, but from the sizes of the files, it looks like that is not the case– that it must actually be pulling the file from the data folder. Hmm.
Hmm. Unfortunately, I don’t immediately know how to fix that.
Do I understand correctly that it still runs correctly on the “Grace” image?
