can I print hips with a 0.02 nozzle?

You can print HIPS filament with a 0.02 mm nozzle, but note that the typical nozzle sizes supported for certain printers include 0.2 mm as the smallest. HIPS filament print settings generally recommend a nozzle size of at least 0.15 mm. The recommended printing temperature for HIPS is between 185-225°C and requires a heated bed at 0-45°C. The printing speed typically ranges from 40-110 mm/s. Using a 0.02 mm nozzle would be unusually fine and may require very slow print speeds and fine tuning, but it is technically possible to print with HIPS filament with very small nozzle sizes as long as your printer supports it.