Let’s start this blog with a 3d printer project that kept me busy for the last two years and has now come to an end.
Well, not really an end.
In fact, there does not seem to be an end when it comes to 3d printers.
But enough of endings, here’s the start:
For a long time I wanted to build one of those 3d DLP printers. 3d DLP printers are awesome! They use a projector to illuminate the transparent bottom of a basin filled with photo-curable resin. After a layer of the model is cured, the model gets pulled up and the next layer is illuminated until step by step a 3-dimensional model is “printed”.
The print quality is great: you can go down to resolutions of 0.05 mm or less and the printed objects are much stronger than from FDM printers.
As a lucky coincidence, the University of Groningen needed a 3d printer being built to manufacture high quality models for flow tunnel testing. This was a great opportunity: there was a budget and workshop access and all kinds of nice conditions that make the tinkerers life easy. Long story short: I teamed up with Leo, a friend of mine and together we build this thing.
Leo made all the mechanical stuff and I jumped in for the electronics and programming. Check out the result below 🙂
It’s quite a machine as it features a decent build volume of 192 x 108 x 300 mm at 0.1 mm resolution. And it is built like a tank. Heart of the printer is a small Intel NUC PC. It controls the projector as well as the AtMega32U4 micro controller that is in charge of the various stepper motors and the LCD display.
I’ll cover more details on the printer in the next posts as well as a new open source pre-processing software developed for 3d DLP printers!
Stay tuned and make sure to comment!