10.Machine Design.

This week, we were assigned a collaborative project to build a CNC machine for ceramic printing. Below, I will explain the part of the project I worked on and how I completed this task.I was responsible for the design and assembly of the machine, as I already have experience with 3D printers and have built my own printer. GROUP PAGE .

Before starting the design, my colleague Emilio provided me with the basic measurements and size of the printer. We derived this from the materials we had available. Because of this, many changes were made, and in the end, we ended up using a different profile.

motion system

For the machine's movement system, we used a belt system for the X and Y axes, supported by 8 mm rods with linear bearings. For the Z axis, we used a lead screw system supported by 8 mm rods with linear bearings. We chose this design because, in my opinion, it is the most optimal and practical to use.

X and Y

  • gt2 band
  • gt2 pulley (1)
  • 8mm rod (2)
  • Nema 17 (1)
  • linear bearing 8mm (4)

Z

  • endless screw (2)
  • 8 mm coupling (2)
  • 8mm rod (2)
  • Nema 17 (2)
  • linear bearing 8mm (4)
  • worm screw nut (2)

design 3D

Here you can see the complete design I modeled of the machine's structure. You can see a 3D model of the machine, specifically its main structure. Additionally, at the bottom, you can see the parts it includes in more detail with their measurements.STEP FILE

Axe Z

Soport

Axe Z

Axe Y

Axe X

Axe Y

This piece is the main support for the motor on the X-axis. It has a slot for the belt to pass through and two holes for the linear bearing and the lead screw. This piece is used twice in the machine; however, the other piece has a small difference in that it does not support the motor and includes a small tensioner for the belt.

videos

Here you can see some videos of the manufacturing process of the machine using Solidworks. I didn't include more because there were many hours of modeling and the video file is very large.

Final results

Here you can see the final result of the machine assembly, along with images and videos of how the machine prints with ceramic. For more information, please visit the group's machine GROUP PAGE .