Maintenance notice:
These forum archives are read-only, and will be removed shortly.
Please visit our forums at their new location, https://www.evilmadscientist.com/forums/.
Windell Oskay
About
- Username
- Windell Oskay
- Joined
- Visits
- 294
- Last Active
- Roles
- Administrator
Comments
-
Can you please clarify what you mean by "only powered on"?
-
So that LED can handle up to 350 mA, running at about 3.5 V. If you're running from a car, that probably means 12 V power. To run the Larson Scanner PCB from that you would need to use a voltage regulator, perhaps a 7805 to reduce the 12 V to 5 V. …
-
If you can figure out _exactly_ which LED you're looking at, and what power supply you'll be using, I can help recommend transistors and resistors.
-
It's not designed for high power LEDs, but if you really want to go MUCH brighter, you could always use the outputs to drive transistors that control higher output LEDs instead. Do you have a particular LED in mind that you would like to use?
-
No, they are by design set up so that the mode cannot change except by interacting with each board individually. However, you can override this by wiring up all of the buttons in parallel, such that pressing the button on one board does trigger the …
-
Yup! That looks fine (and huge)!
-
I like the idea of creating a font table like this, but I would recommend having only a single line in the drop-down menu to select it. Perhaps that should be something like "Generate font table from this text."
-
I have not seen that kind of ghosting before. That sounds like there's a significant problem. Is this a relatively new clock, or has it been around for a while? It is potentially possible that some kind of gradual LED failure could lead to this... …
-
Once again, these look really great! I think that I'd be OK with extending the format to allow floats directly-- seems that there shouldn't be any technical reason why we shouldn't do that. Glad you found the SPUD.
-
Here you go: http://web.archive.org/web/20110430074056/http://www.evilmadscientist.com/forum/viewtopic.php?showtopic=4551&fromblock=yes
-
Also: Awesome project, looks great! We have a hyperball machine, ourselves.
-
I don't know how much available power supply capacity you have in your machine-- I suspect that it's high enough that another lightbulb worth of power (enough to run several more kits) would not be a problem. The limits that I suggested were based o…
-
Implemented, just for you. I've just pushed an update to the EggBot software that will allow it to skip pen-up movements of zero (well, less than one motor step of) distance. This is something that we previously implemented on the AxiDraw software…
-
These attribution type questions -- especially the names -- are a little tricky. With the Jenna Sue example, "free for commercial or personal use" does not necessarily include derivatives, whereas the OFL fonts do explicitly allow derivatives. Howe…
-
Yes, that should work well. You might consider also looking at our clear-lens yellow flickering LEDs, which are particularly good for this purpose, since they project more of a beam than the diffused LEDs in the flickery flame kits. Computer fans a…
-
These look really great! If we start with fonts that are covered under the SIL Open Font License -- Architect's Daughter, Sacramento, and Allura are -- then it should be acceptable to create and publish derivative fonts of those, so long as we compl…
-
After some digging.... Looks like the img tag works OK, if the URL is the actual image. http://i.imgur.com/7wmraYb.png, not http://i.imgur.com/7wmraYb
-
Yes, it's a good idea. I've often thought about trying to create more fonts in the Hershey format... and there are precedents for creating font derivatives on your own computer (for your personal use). Having an editor that would let you create ne…
-
4.5 V DC is enough to run _one_ LED if it is blue, white, or "pure" green. It's enough to run two red or yellow LEDs in series.
-
Ah! Here you go: http://www.evilmadscientist.com/2012/resistors-for-leds/
-
The flickering LEDs cannot be used in series, nor directly driven by AC. Think of the processor in each LED as being a bit like a computer-- when you remove power (whether that's by switching it with AC or by putting it in series with an LED that bl…
-
Awesome-- glad to hear it. And, neat enclosure! Does the button switch settings?
-
The cutoff value is the setting for the sensitivity adjustment-- there is not any additional default level of filtering beyond setting a threshold on the rate of change of the infrared signal that is detected. Some other things that you can play wit…
-
Tempered glass can be tricky, because some types admit less IR light than regular glass. The "active" sensing part of the sensing tends to be diminished, since the IR light that is emitted has to make two round trips through the glass. What we wou…
-
Please check the rubber feet-- since they came off -- there should be a mechanical shim (a plastic washer) around the stem of the rubber foot, on the back-left and front right feet. I should also say -- even before you have a chance to check that -…
-
Great-- sounds like progress. Any chance your table isn't level? The machine should rest pretty well on its feet, if they're all touching ground.
-
Hi Craig,I'm sorry to hear about the issue. I'm not immediately able to reproduce it here. The issue is that you have an older version of the "plot_utils" script in your Inkscape extensions directory. I just tested deleting all of my AxiDraw files …
-
We are indeed swamped and running behind schedule on many things, but the software and the first part of the user guide are posted on the wiki. This (along with ramping up production) are our top priorities right now. We *are* dedicated to making su…
-
If you need to change the software to work with a different kind of plotter, you will need probably want to adjust the page size, resolution, speed, and acceleration values found in the axidraw_conf.py configuration file.
-
Ignoring the question. An interesting thing to think about is what would it take to be able to take an outline font, and draw it with a marker, such that it represented the intended outline as well as possible. Perhaps a path-inset type operation, a…
