Amazingly 2-way power drive DIY disc sander

I have improved the disc sander I made earlier so that it can be powered by a Makita battery.
Of course, it is possible to replace it with a general-purpose motor simply by replacing the pulley.
It is possible to sand more powerfully.
Click here for the plan
jisaku-koubou....
This video is an update of a work I made in the past.
Here is the original video.
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