Hi there! Most if not all of the LCARS artists I've spoken with use a font called "Swiss 911 Ultra Compressed" as suggested by the MemoryAlpha site.
This turned out great. Love Ducky's channel! Have you done any abstract objects?
Sorry for the late reply. The guages were actually rather fun to create. I did them in sections actually. The frame of the guage, then the measuring lines, then the numbers and finally the gradient section. I did it this way so I could change colors and levels of the guages. As I raise or lower the gradient section, I simply change the color of the numbers so they are more readable.
Hope this answers your question. If not, ask again and I will try to explain it further.