Drawing tools for the Thermofax
Having been told long ago that ink jet printers were not suitable for reproducing images for the Thermofax, I never tried. However, a successful screen was made by accident recently after I forgot to switch from ink jet to laser printer.
Then Jean Dodds told me that a 'uni pin fine line 0.5 mm' could be used so I decided to test everything in my desk.
The results were:-