【自作スピンドル】スピンドルの振れを0.01mmに抑えた3つの方法【卓上ＣＮＣ】

I want to push the precision of my homemade CNC spindle to the absolute limit. My homemade spindle had significant runout, and I wasn't satisfied with the machining accuracy. My goal is "rotational runout of 0.01mm or less." This video shows the results of three specific improvement measures and subsequent machining tests. 0:00 Runout of the homemade spindle 1:51 Collet shaft replacement 2:18 Preload structure modification 6:06 Phase adjustment of shaft and bearing 8:32 Machining test 9:40 Comparison with the machined part before adjustment 10:39 Machining with a shortened end mill 11:57 Does the dimension change with up-cutting? 14:27 Next episode preview