Intro
This weeks objective is to make a machine, for this week I wanted to make a custom cable robot using cheap components.
Objectives
- Make a cable xy plotter
- Use GRBL or Similar preferably compatible with esp32 and wireless controll, (less cables)
- For now draw a square
- 3D printed parts
- Rumba Control Board (initially)
- Steel Ball chain (cheap)
- 2 x 608 Bearings
- M3 Bolts, spacers and nuts (multiple sizes)
- Computer power supply (12v)
- Open builds beam to mount brackets
- Drop in nuts to mount on the beam
- 2 stepper motors nema 17 with cables.
total cost < $100
Process
First I used a previous project as reference, I modified the gears to fit the metal ball chains, and redid the motor brackets to make it nicer (concealed). Then I initially got it working with an old Rumba board (circa 2014) that i had from an old 3D printer. I reconfigured the repetier firmware (it has a cable robot setting) to adjust my stepping distances, board and mainly tried to delete everything that is not necessary.
I printed the different parts:
….
Here are some pictures of the machine :
Conclusion
Files