Hey all,

Spending a lot of time doing the research, and seeing the values people have used to print at extremely high resolution (i.e. 20 microns or 50 microns per layer!), I've managed to work out a formula for a linear regression i.e. line of best fit for estimating the optimum extruder speed!

y = 0.622449x + 28.061224 is the formula you want - substitute X in for the layer height, and Y will be your extruder speed.

This is based on the following data: 20 micron print resolution, 40mm/s extruder speed; 50 micron : 60mm/s, 100 micron, 90mm/s. Obviously using makerware the speeds are capped at 90mm/s.

If anyone has any other data they've done (i.e. 10 micron layer, 5 micron layer (!!!), 59.39 micron layer etc, feel free to contribute it!