Hi all,
I have just found this forum, and this is my first post on it.
I have built a small 3-axis CNC machine, which works pretty fine so far.
You may have a look at pictures and videos here:
http://fredericbaumann.free.fr (CNC section)
I would now like to add a 4th axis, with a rotary table, controlled by a stepper engine. My problem is that I don't know how to make it move.
- I can definitely not directly plug the engine to the table axis, the resolution would be way to low (48 steps/round).
- I could use a belt, with a small whell on the engine, and a big one on the table axis
- ...
Could you please let me know what is the best practice for doing this? I could find no example of DIY rotary axises, I could only see linear axises moved by a screw, but this does not fit with a rotary axis.
Hope my question is clear, please let me know otherwise! :-)
Thanks,
bfredo123