Vacuum Fluorescent Display (VFD) on a Prusa I3 Mk3 Printer

In this video, I replace my printer’s LCD with a Noritake VFD:


Because VFDs look cool.

Noritake VFD Display on a Prusa I3 Mk3

What else is there to say?

This is going to be a relatively short blog post because the project was so simple. You can either desolder the existing LCD and solder the Noritake VFD in its place, or you can buy a no-LCD display board from and solder the VFD to that. The VFD has two fewer pins than the LCD had, because the VFD does not have a backlight whereas the LCD did. Just snip the extra pins.

The display you’re looking for is the CU200045-UW5J or similar. Personally I found a CU200045SCPB-W2J, which is an older/obsolete part, on eBay at less than half the cost of a new display so I went with that. I’m assuming the new display would work just fine. Here’s a picture of the display mounted to the board before I reassembled the printer:

VFD Display on 3D Printer, pcboard view

As a further modification, there are color filters that you can buy. I do currently have an orange filter on order from China, will post updates when I get a chance.

My new 3D Printing Channel

I started a new channel on what are intended to be quick 3D printing videos, in contrast to my usual long-winded electronics videos. I’m aiming for on the order of 5 minutes or so. Most often what you’ll see here are things that I printed and tried out. Often from thingiverse, sometimes my own creations.

URL for the new channel is

Comments (1)

  1. Jeffrey Jonas says:

    Clever! Noritake warns that their VFD reacts faster than LCD so it’ll flicker or glitch where LCD does not.

Leave a Reply

Your email address will not be published. Required fields are marked *