Evolution of a Blog

This blog has evolved as I have as a maker. It starts at the beginning of my journey where I began to re-tread my tires in the useful lore of micro electronics and the open-source software that can drive them. While building solutions around micro-electronics are still an occasional topic my more recent focus has been on the 3D Printing side of making.

Wednesday, August 12, 2015

Another Post on 3D Print Quality

Here are some more examples of the relationship between layer height (resolution) and visual print quality:

0.4 - 17 Minutes to Print
0.3 - 30 Minutes to Print
0.25 - 37 Minutes to Print
0.20 - 46 Minutes to Print
0.15 - 1 Hour to Print
0.10 - 1 Hour and 20 Minutes to Print
And here is the entire assembly printed at with a layer height of 0.25 and then the difference at 0.15:

0.25 - 2:50 to Print

0.15 - 5:21 to Print
And finally, the difference that speed can make.  In general slower is always better.  On some prints this will be very obvious and on others less so.  I consider speeds of above 35mm/sec as acceptable and below that as very good.  While a printer may be able to achieve 50mm/sec or better there will be challenges with material feed and other quality issues.   If you don't understand something that looks weird with a print...try slowing down.

Here are some examples of a speed artifact using the same model as above:
At 1500mm/min (25mm/sec)

At 3000mm/min (50mm/sec)
This is called "Ringing" and there is a good description of it here on the Visual Ultimaker 2 Troubleshooting Guide.   As you can see, speed was the problem, and the solution.

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