RepRap: Blog

I re-ran the print of the triangles, this time with a base size of 300μm and eSun Standard Resin. The resin reservoir was a little further away, so this one took about an hour to print. One layer. Well, it's a prototype and I'm not pushing for speed. I've boosted the contrast and overlaid a 50μm grid on it:

 Damn my lenses are filthy. Here's what PrusaSlicer thinks it is printing:

 

 

The probe, by my CNC console's measurement, needs to be positioned correctly within about 5μm. Getting that better calibrated will result in thinner lines - the 30μm lines (I've made 10μm dot grids before) were just how it turned out rather than a specific aim. But this does show that across 0.6mm the probe height above the stage remains reasonably consistent so that's more data on the stage's parallel flexure design. Also, as the probe was dipped tens of times, the seeking seems to be reasonably consistent.

The microscope image was taken after blasting the thing with UV for 5 minutes. I've given it another 5 before putting it in the sample box.

A few dev notes to self: The "dipify" code is returning to the start of the current line rather than the last plotted point, which needs fixing. I could probably plot a lot more points with one dip, which will speed things up. Might be able to magnify it using a laser to project an image using the "water drop laser microscope" trick, but don't want to submerge one yet.

The idea is to make something that can be folded up into a pyramid. I won't do that with this one, it's a bit of a historical sample that I want to keep and show off!

I have added the PrusaSlicer config and the latest "dipify" python code to the github repo.