I will make another window, using the lessons learned from making the first one. Hopefully this one will be good enough to incorporate into my first blinker device.

This time I will employ a new technique for creating neater glass circles, and rinse the glass with deionised water after the acid bath. I will also attempt to smooth the kiln/bat wash to get a better bottom surface.

I used a circle cutting technique shown in this video. It worked very well and produced quite neat edges on the circles.

Beautiful!

Wow!

Soaking in deionised water.

Re-firing window 1, firing window 2 for the first time.

A slower initial ramp than last time. Same peak temperature.