I added some wood for the main platform and used an old LED sign board to hold the electronics. The Robo raptor is jealous that I am no longer playing with him.
I bought a ball screw drive for the Z axis on eBay and figured out how to mount it. The X and Y axis were belt driven but kept binding up and had too much play in them.
Next I upgraded to NEMA 23 stepper motors and ball screw drives for the X and Y axis. Now it runs much smoother.
The mechanical part is just about done, but the electronics will need a lot of work before it starts running. Currently the Arduino is driving the steppers through some L298 driver IC's.
Here is the electrical so far. I have built a L297 interface board but it is still not working properly.
Here is a link to the video on youtube: https://www.youtube.com/watch?v=RL-55GaYAvs
2 comments:
What's the cost of materials for just what you've shown in this post? If the only missing pieces is an Arduino, this seems like it'll be a nice low-cost option for someone that wants to build their own CNC machine.
I now have a book with the plans on how to make the CNC machine. However I removed the Arduino and replaced it with a parallel port break out board.
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