Differences

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--- mcmaster:brainscope [2015/09/18 07:19] – mcmaster
+++ mcmaster:brainscope [2018/06/28 04:51] – [2018-06-05] mcmaster
@@ Line 782: / Line 782: @@
 \\
+====== 2018-06-05 ======
+<code>
+motor
+M061-LS02
+http://www.warner-china.com/bujinmada.pdf
+type: LEADS
+typical step time: 2.5 ms
+nominal volts: 5 V
+bipolar series
+  A per winding: 0.7 A
+  H per winding: 38.3 mH
+Hold torque: 60
+</code>
+<code>
+Rorze RD-021M8 resistor value
+Ir = 0.7 A
+I = Ir
+    microstep: I=1.414×Ir
+.414 * 0.7 = 0.9898 = 1.0
+X ={I/(0.1108×Ir+0.66)}
+.7 / (0.1108* 0.7 + 0.66) = 0.949075329  = 0.95
+.0 / (0.1108* 1.0 + 0.66) = 1.3
+R = 8.2×X/(8.2-X)
+.2 * 0.95 / (8.2 - 0.95) = 1.074482759 = 1.1
+.2 * 1.3 / (8.2 - 1.3) = 1.5
+</code>
+====== 2018-06-27 ======
+Effort to overhaul control system, especially for upper XY
+Rorze RD-021M8 resistor value: 1.5 ohm?