Hi,

I am a physicist and I would like to order a micro-structure surface so that I can study the physics of friction on it. The surface could be something as simple as a micro-stepped surface, the ones typically obtained when 3D printing layer by layer a tilted surface. But it is essential for me that the thickness of the steps are as thin as possible (preferably 20 um thick, 0.02 mm, and 10 um deep).
As far as I know, the best resolution for 3D printers is 20um layer thickness and 12 micron XY resolution for the “Ultimaker 2”. This could print a fairly good 20 um thick and 40 um deep stepped surface. I have already ordered 50um-layer-thick samples (simple 2cm-high pyramids) but the XY resolution was not good enough.

Anyone knows a better technology (maybe resin-based), or thinks that can print this for me?

Thank you very much,

Trebor