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ragstian
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Hi. Ingenuity unlimited!! (This reminds me of my wood routers, the cost of the router itself is "nothing" compared to the cost of all the accessories - like bits, jigs, tables, fences etc!) From your picture I see one thing that caused me (your mi…
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Hi RayT quote; "The question came up yesterday when I was asked to bring the bot to a preschool shindig and do something for each of some 30 kids, only having an hour and a half to complete." Where are you? I'll bring my bot and join you! RGDS …
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Hi That explains why setting some of the options in the code does not produce the expected result, for instance setting bDryRun = True # write the commands to a text file instead of the serial port does not redirect the output but causes the exten…
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Hi dnewman Clever indeed. Like your comments in the code about the software patent 'troll"! For the multi-bot setup to work on Mac / Linux this will have to be incorporated in the eggbot extension. From other threads on this forum I see that the in…
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Hi. Thanks, got it working - sort of - not getting the "The image has been resized to fit the image" yet. Edit; got it! Thanks for the "pointers"! This is what I like about forums - learning something new every visit! RGDS Ragnar
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Hi. I have seen this 'error' on many of my plots as well. The error is caused by different pen height when installing the second pen. If the pen is just a tiny fraction off compared to the first one this will be the result. I use a bent paper clip a…
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Hi. Interesting question. I have just tried this on a Windows7 system and it works like a charm! The difficult part is to know which plot goes to which bot! (If you plot the same design to the same media it would not matter.) Some methods to get t…
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Hi. From the kit page; The circuit runs on 2 AA cells, and has an external battery box with integrated power switch. Under high-brightness mode: A new set of alkaline AA cells would be expected to last about 60-80 hours continuously, or 10-13 d…
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Hi. When having serial or usb problems on other platforms one trick is install a 'monitor' to see all 'traffic' on the port. One such goodie for the Mac; Port_Monitor Good Luck RGDS Ragnar
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Hi As stated above; Your "design" can be plotted on the eggbot with just a few changes to some of the parts. The eggbot does not produce "filled in" parts. The fill-in has to be added manually. To change your design I would set the fill to none a…
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Hi Brian. Thanks for the feedback, I know there are too much info to digest in one go! No rush on the answers. My code for the "automatic check of the motor voltage before plot" is almost finished, it now works with all the firmware versions I could…
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Hi StefanL38. Good catch on the coding. Using "hard-coded" values in (any) code is a 'pain in the neck". It' is used "all over" in the inkscape extensions, I have changed most of my extensions where I need higher default values - like in the "Rende…
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Hi I plot designs 6400 wide on my 3200 pixel eggbot (1.8° motor) without problems ( with the "Wrap around" option enabled ) The largest canvas size I have used was 32000 pixels (to get a 10 turn spiral of text on the egg - the text go between dia…
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Hi. Have you selected the "Egg (x) axis wraps around" in the options tab? RGDS Ragnar
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Hi. Experimenting with the EBB board and "extending" my test program I discovered that the pulse output from the EBB is acting a "little strange". When pulsing at a low rate the pulses stop briefly every 16th pulse causing the motor to "stop" brief…
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Hi Reverse engineering of Brian's file ebb_demo.c in python. Plotted with standalone python test program used for above tests. Front and Back RGDS Ragnar
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Hi Another fruitful run without errors. Dump of last four lines from program; Moving pen 279 steps= 31.39°, egg 279 steps= 31.39° in 697mS. Moving pen -558 steps= -62.77°, egg -535 steps= -60.19° in 1394mS. Moving pen 279 steps= 31.39°…
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Hi Brian. After testing the pen move using the 2.2.3 version I reckoned - why not try "the real thing" - running the eggbot from Inkscape. When setting up the eggbot after flashing the EBB on the Eggbot ( I used my spare EBB board for testing on t…
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Hi. Could you post a link to the SVG file causing the crash? Much easier to debug with a file causing the error than from the error messages. What version is the EBB board and firmware? You can get the board and firmware from the "manual" tab in the…
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Hi Brian. I have now done two tests, one EBB pen move command turning the motor one complete revolution in one second. This was done for over 12500 moves without error. The second test was random length moves - in random direction - restricted to t…
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Hi. Thanks for the tip, the RoboPaint API road looks interesting. Will download the code and have a look. Yes, I have "patched" bits n pieces from the Inkscape eggbot extension. I am currently sending commands stand alone, without a GUI. No sign of…
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Hi Brian. Once again thanks for the detailed explanations, it's appreciated! I am "sucking up" the info like a dry sponge!! For the pen arm code failing doing long moves using the SM command, most of my latest plots have been very fine detailed wi…
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Hi. Is the thin tapered line at the start or end of a plotted line? If at the beginning it is most likely due to a too small delay after lowering the pen in the timing setup tab. See http://bit.ly/1iFUjAg (How did you manage to get your posted imag…
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Hi Brian. Thanks once more! Using firmware v2.2.3 I am happy to say that the reported motor voltage is no longer varying with different pot meter settings. I am very impressed with your code! I am curious about what was the "bug" in previous versio…
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Hi Brian. Thanks for the nice words and the long answer with a very nice explanation on how your code works. I figured most of the details as you have explained from your very well commented code! I would love to test the 2.2.3 code but I have one…
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Hi. The extension is now updated to include current setting as well. Link to new version; http://bit.ly/1dvSQO7 My spare board which had firmware 2.0.1 reported too low voltage, works ok after upgrading to 2.1.5. The reported voltage is still depe…
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Hi Todd. I am in Texas - just a little too far from NH to drop it off! I am sure the EMSS guys will sort you out - their customer care is excellent! RGDS Ragnar
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Ho. Ok, here's a link to a zip file containing the eggbot.py and eggbot.inx. http://bit.ly/1juocaa Code will work on EBB hardware v1.3 and above. (The white boards from EMSL are v2.0, and all boards from SparkFun are v2.0 and above) Another small …
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Hi Todd Where in the world are you? I have two spare motors in my drawer. (Plus a spare EBB board). RGDS Ragnar
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Hi. This sounds like too little current through the motor windings. Too little current could be caused by too low motor drive voltage. Check the motor supply voltage first. If OK then adjust the current pot meter. Check the holding torque of the "…
