Delta 3D Printer Explained:

Most of the 3D printers on the market are cartesian, meaning each of the axis are independent and a command to move a single axis only requires the movement of one motor. This setup makes the control algorithm pretty simple, but has a few negatives that a delta printer addresses. The biggest negative of the traditional cartesian prints is the large amount of mass that has to be moved to print the part. The delta configuration makes the printed part stationary and isolates the movement to just the print head and lightweight nozzle. It also opens up the ease of expanding vertically and allows for rapid and precise printer head movements.

 

Motivation:

I originally built my trusty printer about 5 years ago and its been bulletproof ever since. I've racked up probably near a thousand hours of printing on the machine and its just as precise as it's ever been. You might be asking then why I'm designing a new 3D printer.

This new delta printer will allow me to expand my printing capability from 8"x8"x4" cube to 18" diameter x 16" tall. This will truly be a massive build volume and should allow me to print literally whatever I want (including a prototype version of the adapter plate design that will join my electric motor to the RX8 transmission bell housing.

My Custom Delta Design:

A few renderings from my CAD models are below, and a video of the machine's first movements.