Editing The Eggbot coordinate system
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− | Where is (0, 0) on your egg? Turns out it really doesn't matter. But if you must know, when you start the plot with "Start with pen centered", the point (0, 0) will be H/2 pen arm steps "up" | + | Where is (0, 0) on your egg? Turns out it really doesn't matter. But if you must know, when you start the plot with "Start with pen centered", the point (0, 0) will be W/2 egg rotation steps to the right and H/2 pen arm steps "up" towards the headstock. |
And, now that you understand that the Eggbot uses relative coordinates, what about the Inkscape drawing template? Does it need to be 3200 by 800 units? Not really. Nor is it too important what the coordinates of its corners are. About all that really matters about the drawing template is whether or not you use the "Start with pen centered" option. If you use that option, then you want to know where the geometric center is in your drawing. That's because the Eggbot will assume that the pen starts there. | And, now that you understand that the Eggbot uses relative coordinates, what about the Inkscape drawing template? Does it need to be 3200 by 800 units? Not really. Nor is it too important what the coordinates of its corners are. About all that really matters about the drawing template is whether or not you use the "Start with pen centered" option. If you use that option, then you want to know where the geometric center is in your drawing. That's because the Eggbot will assume that the pen starts there. |