Tuesday, July 06, 2010
Vectorization of pixel defined print roads actually working properly
In which a very kind Adrian Bowyer takes pity on your narrator.
In my last posting on 21 June, I laid out a method for vectorizing a pixel-defined perimeter. Having read the posting, Adrian Bowyer, a published expert on this sort of thing, took me aside and showed me how to do the vectorization efficiently instead of just at all, the solution I came up with.
Using Adrian's approach, I was able to achieve my goal of getting exact vectorization of the print road and push out the average segment length to well over the 0.3+ mm that was required to assure a print head speed over the major axis of at least 16 mm/sec.
You can see an example of such a vectorization here. All values, save the last, are in tenths of a millimeter.
The last value in the listbox, "rho/axis" should allow me to adjust the print speed on the fly in G1 statements to assure a constant head velocity for print road segments greater than 0.3 mm in length.
I should be printing ABS parts again by this weekend, which is good since I want to redesign and print one of these.