I finally had the time to make my 4th axis. It's pretty feisty. All heavy components so I can suspend a log in between....
There was no space in the cabinet for the machine for the 4th axis. So I made an external power supply, and bolted the gecko right onto the frame for cooling.
Now it's completely mobile. Power and step and direction and it runs. Thirteen steps per degree gives me plenty of accuracy.
A few days later I finished the equally feisty tail stock. MT3.... I have a 'regular' life center, a life chuck, and a life spur for it. All work great.
The little Gecko got a cover in the meantime. Just in case I mill some AL....
For wood... I would not really care if the gecko becomes a tad dusty.
The 1.5" steel rod is supported by two angled roller bearings which sit in three inch thick aluminum blocks.
If that get's bend... I don't want to be around and see why!

