I am finishing my large format Delta printer: Raptosaur. Some features: - Print area: 14" (355 mm) diameter (or 17" (431 mm) wide) by 24" (609 mm) tall. - Temperature controlled build chamber to allow building big without shrinkage problems - Double pane Lexan window - Carbon fiber rods - Magnetic ball joints - High temperature neodymium magnets in the carbon fiber rods - Heated build plate made from cast aluminum tooling plate - High resolution (400 step), high torque Nema 23 stepper motors - Custom direct-drive Bowden Extruder (using the same model stepper) - Custom Hot-End using coaxial cooling (details in another post) - The case is made from 3/4″ MDO plywood - A Rumba controller (for now), I am looking for a 32-bit controller! Details and video here on my page: PaulWanamaker.wordpress.com I want to thank everyone in the RepRap community for all the great ideas. I will be posting build details and some shortcuts I've discovered along the way. This printer took about a year to design and model, and about 6 months to build - almost everything is custom. I will be using this printer to create full size anatomical models (like animal bones/skulls) for local schools, and full size prototypes of mechanical parts for some robotic machines I will be building. I apologize ahead of time for the slow pace of my posting - so much to do! https://reprap.org/forum/read.php?4,424370,424370#msg-424370 Wed, 13 May 2026 18:20:03 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,424370,424370#msg-424370 https://reprap.org/forum/read.php?4,424370,424370#msg-424370 Raptosaur.

Some features:
- Print area: 14" (355 mm) diameter (or 17" (431 mm) wide) by 24" (609 mm) tall.
- Temperature controlled build chamber to allow building big without shrinkage problems
- Double pane Lexan window
- Carbon fiber rods
- Magnetic ball joints
- High temperature neodymium magnets in the carbon fiber rods
- Heated build plate made from cast aluminum tooling plate
- High resolution (400 step), high torque Nema 23 stepper motors
- Custom direct-drive Bowden Extruder (using the same model stepper)
- Custom Hot-End using coaxial cooling (details in another post)
- The case is made from 3/4″ MDO plywood
- A Rumba controller (for now), I am looking for a 32-bit controller!

Details and video here on my page:
PaulWanamaker.wordpress.com

I want to thank everyone in the RepRap community for all the great ideas. I will be posting build details and some shortcuts I've discovered along the way.

This printer took about a year to design and model, and about 6 months to build - almost everything is custom.

I will be using this printer to create full size anatomical models (like animal bones/skulls) for local schools, and full size prototypes of mechanical parts for some robotic machines I will be building.

I apologize ahead of time for the slow pace of my posting - so much to do!]]> Paul Wanamaker Reprappers Sun, 26 Oct 2014 02:09:09 -0400