From microscopes to casting machines—what’s on your must-have list?
If I had to pick one, a 20–40x LED stereo microscope on an articulating arm is the biggest upgrade — like giving your hands glasses. Set it so your focal plane hits the margin at your natural posture, then finish margins under it with a 0.5 mm carbide or glass‑fiber brush. If budget’s tight, a 10x loupe still helps — “buy once, cry once” — what magnification are you on now?