| Modify of Synchronized gear unit for router lathe | 
| Mar. 16/2019 Last month I took out the router race after a long time and made a screw. But it took a long time to center. I changed the coupling to a ball joint. Link to synchronization unit. [Router lathe],[Synchronized gear unit for router lathe] | 
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| 1.I bought a ball joint for 1,425 yen at amazon. Expand one side hole to 12 mm. | 2.Move the screw shaft 10 mm portion a little cut and connect the ball joint. | |
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| 3.It began to rotate gently. | 4.Joint part before remodeling | |