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First, check that you have appropriate pen-up and pen-down heights, as shown in section 3.3 of the manual.
Next, note that the “Timing” tab in EggBot Control has places to change the different timing parameters that control its operation. These include the speed of drawing, the speed of raising and lowering the pen, and the delay before moving after raising or lowering the pen. You likely need to adjust one of the latter two values. I’d suggest lowering the drawing speed quite a bit to see which one, and to verify that it’s doing the right thing.
Still some problem with the right eye. The moves seem to look ok. What do you suggest?Not sure– either exactly what the problem is nor what the solution is. This isn’t a particularly good test subject to try and diagnose high-precision issues with. Can you describe what you think the problem is?
It does appear that the file has an extra outline (in peach) around the eye there. You may be able to remove it. Otherwise, it may be a matter of precisely positioning your pens in exactly the same way.
On the file, those “moving a bit” parts do conspire to form a circle there. You can see a bit of the same thing on the thingiverse page. ( http://www.thingiverse.com/thing:84044 )
One thing that could be contributing to the difference is just how “wet” the tip of the pen is. It’s drawn quite a bit more ink on one side than the other, and could be leaving a different amount of ink behind for that reason.Well, pens *are* hardware. The two eyes don’t look different (to me) in the original file, so there’s something going on with the hardware that is causing that difference. It could be the detailed shape of the egg, the angle of the pen, the dryness of the pen tip, the angle of the pen tip (sharpie tips do tend do deform over use), or so forth.
There are ways to narrow down exactly what the issue is. For example, if you reverse the path on the fill, so that it goes the other direction, will the “dark” eye move? Will a small change in the pen arm centering have an effect? Does being more careful with pen centering and height make a difference?OK, great!
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