2. Arm material :  AL 60 Type        
Arm material is AL 60 alloy steel, and anodizing coating makes it very durable.        
Column and Arm is square type, but adapted three-point method.          
This minimizes the loosing that occurs at bearing and there is no repetitive error when driving.        
(We acquired patent for three-point method for driving gear. Patent No 10-1656256) 

3. Driving Method      
With three-point method, there is no vibration when driving, and it works smoothly      
And, when checking the degree, it is designed to make adjustments in the body itself,      
not with bearing, so you can use it continuously after setting the degree once.

6. STOPPER SYSTEM          
Stopper of each axis(X,Y, and Z) is equipped on fine adjustment roller, and can be on and off.          
This prevent that driving bearing is pushed to the one side when on and off.          
Fine adjustment device of each axis and stopper are located at same site,          
so you can easily operate it with one-hand. Especially, base-part(X axis) transport device          
is on high position for easy operating.