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Windell Oskay
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This is a fairly normal effect, due to the fact that when the pen arm moves 90 degrees it covers more egg surface than when the egg turns 90 degrees. For a chicken egg, we would recommend:1. Positioning the pen motor roughly halfway up and down in i…
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Okay great-- glad to hear it. If you do figure out what made the difference, it would be nice to know for people who have the same problem in the future.
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We have GPS on and DST on... I'm not sure that there are other settings that are relevant.
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The author thought that using the Chronodot was not important when the GPS was used... and that is part of the explanation. Does the Alpha Clock Five indicate that it is staying locked? It indicates unlocked condition with the alternating colon se…
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To the extent that you do have a lock, it is likely not actually drifting. That means that you are apparently having periods of a sizeable fraction of an hour when you do not have lock. We haven't had this problem with our example running the code…
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If you have the precision coupler and you are not using it, that would be the very first thing that I'd recommend trying to solve this problem. Precession in the rubber couplers can cause the exact effect that you are seeing.
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Well, if anyone could do it, it would be you. We have, ourselves, never managed to wear one out in our demo units, or through anything resembling normal use. (We did manage to kill one by driving it directly at 9 V for a while...) But, thinking a…
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@Jaqcov:It's not clear what the situation is. You may have a bad power supply, or it may just be the case that you need to turn down the pot. If you have the current turned up too high on the pot, the motors will make noises, get hot, and plot poorl…
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Yes, something is mechanically shifting while plotting. We've seen similar "cracks" on long stipple plots, both on the EggBot and WaterColorBot, although usually not this frequent or large. Check very well to make sure that everything in the pen ar…
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Do you get this error with every file, including our example files?
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You should not be losing a step in any of these processes. I can say that if you change the pen height, that can result in a misalignment. Try to ensure that when the pen touches, (1) it is pointing directly towards the center of the egg axis and …
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Hi Anil,The capability is not currently supported, and I'm not sure exactly what would be involved. Using a tiny computer like the Pi is probably the most straightforward way to do this. However, if you're willing to hack at it a bit, it should sti…
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Hi Stefan, I would appreciate any code polishing that you are interested to perform, especially ones that help to remove fixed factors that should be changeable. However, please keep in mind that our primary concern in "official" Eggbot driver soft…
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>This might be worth putting in the wiki. That is, make sure your computer is not set to sleep during your plot. Thank you for tracking this down-- that's very helpful indeed. I've added it to the troubleshooting part of our wiki.
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>Why would you like to take out the egg and then put it into the eggbot again? Why not do all the marking at once? Certain important processes require that.
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>How about a pen-adapter for exact repositioning made by a 3D-printer? There are a few different ways that we could go about making an adapter for high-precision multi-pen positioning, but we wouldn't make any of them on a 3D printer. In practic…
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There is a lot of stuff in this thread, and I do not immediately have all of the answers. Some things that I can add, though: 1. The Eggbot Control extension does have a facility for adapting to the 1600 step/revolution resolution: Add a new, empt…
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All of those designs can be printed, but the filled area will only print as an outline, unless you "manually" fill the region. We have several recommended ways to do that, including the "Hatch Fill" extension, and a few other tips and tricks: http…
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Great-- thanks for the update!
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I'm not sure what is causing the problem. As Dan says, it is quite possible for something else that accesses the serial port to cause a problem, and the fact that it works on Windows suggests that this is the case, rather than a genuine hardware is…
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Only the hinge should move freely. If it looks loke the stepper is not moving how you expect, you may need to re-adjust the motor current; we have sometimes seen steps skipped or jumped if it's too high or low.
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If the machine itself is solid, it could be the pen wobbling in its holder, or the egg not firmly "coupled" into the couplers. Try to wiggle the egg by hand-- if it is not firmly locked in place, then you may see this kind of behavior.
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It sounds like possibly something is loose-- maybe a screw not tightened somewhere? Does everything feel solid to your hands?
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Ha! You found the secret code!
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Okay-- great to know that it's up and running, and that it was (same as in the previous case of this error) a USB extension cable that was causing the problem. Since things are working well, we would not recommend switching EBB firmware versions. …
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I am not entirely sure what is going on here. It could be an issue with the file-- and I would be interested to see the file to check -- but a serial read error typically indicates a hardware problem. For example, in this case: http://forum.evilm…
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Upon disassembly, it appears that the servo in question had its cable installed backwards. Unfortunately, that's the sort of manufacturing error that might sneak by QC, if the tester also plugged it in backwards. :P Anyway, I'm glad to hear that it'…
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This is an independently created file, uploaded to the Eggbot code repository-- I don't think that anyone currently involved with the Eggbot project has tested this. It should be straightforward to copy the relevant parts of the Eggbot extensions fo…
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Yes, sounds like a faulty driver board. One thing that you could do is to remove the board from the Eggbot, and visually inspect the solder joints on the terminal blocks to see if you can see anything obviously wrong. But, it's probably best and ea…
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I'm sorry to hear about the trouble. It could be a problem with the driver board, with the motor, or with the wiring. Please try swapping the motor wires, so that the opposite channel of the driver board is driving each motor. Hopefully, that will…
