Tuesday, October 14, 2025
Probe One Is In The Box
Probe One (the acid etched stainless steel one here) was successfully mounted using the mounting jig and put in a nice, protective box until I'm ready to proceed. There's definitely a knack to it, and the jig definitely helps.
I'm going to get some polarized filters and test them on the binocular microscope first, just to see if it makes it easier to see the tiny little resin dots. There was an article on Hackaday about that a day or so ago, though that was about reducing reflections and I kinda want to increase the reflectivity of the resin dots. Not sure how that would work out.
I had been wondering previously whether some variation on a polarizing microscope of the sort used by mineralogists might work. I have a chunk of LCD screen and a heat gun, but outside weather is not cooperating and it definitely sounds like an outside job in the interests of domestic harmony.
I've tried illuminating from various angles, and that wasn't as helpful as I'd hoped. The best result previously was obtained by tilting the slide at an angle as viewing the droplets from the side makes them more visible. The downside here is that you only have a very small section of the slide in focus at any time.
First, I'll have a crack at sorting out the bed levelling using Probe Zero (a disposable hypodermic needle tip) so I don't munt the probe.