Tell us about yourself!
You can use Blender 3D with Paper addon to make same think.
good video tutorial
look's great , can you put a video for us ?
I saw the videos, look's working well ...and just 5 volts. I think is numitrons which have incandescent filaments because most nixie need over 160 volts, anyway great work.
The $1 Waterbrush / Ink Brushpen
you buy from this website with shipping !? ( banggood.com / aliexpress.com ) , nice tutorial.