Differences

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--- klinger:ut100 [2018/08/20 05:10] – [mcmaster] mcmaster
+++ klinger:ut100 [2018/08/25 00:52] (current) – mcmaster
@@ Line 11: / Line 11: @@
   * 2x UE72/50mm: on order
   * 2x UE30/50mm: drop in pr0nscope replacement
+====== Bolt pattern ======
+M4 screws
+For some reason the counter-bored holes at the base are tapped. I drilled them out to make an M4 bolt slide through
+  * #14 (0.182") drill to match existing holes
+  * Note M4 diameter: 4 mm => 0.157"
+There are feedthroughs that probably allow unbolting a lower stage without unbolting the upper stage (ie remove XY stage from a baseplate)
+Looks to be 63 mm bolt spacing
+Looks like you need at least 0.15" clearance from bolt shoulder to top. I observed that 0.155 bolts were getting scraped, 0.150 seemed fine. To be safe, I turned bolt tops down to < 0.13. This was done by holding bolts in a drill while using a Dremel cutting wheel to sand them down.
@@ Line 22: / Line 36: @@
 Official controller is CC-1, which can handle UE72 and UE30
+===== UE30 =====
+{{mcmaster:klinger:ut100:gear1.jpg?300}}
+{{mcmaster:klinger:ut100:gear2.jpg?300}}
+{{mcmaster:klinger:ut100:gear3.jpg?300}}
+Above: UE30 gearbox
 ===== UE30 encoder stepper retrofit =====
+{{mcmaster:klinger:ut100:encoder_conversion.jpg?300}}
+Above: removing encoder. Middle picture shows encoder disk holder, although encoder disk has fallen off
 pr0nscope attached an MDrive17 stepper to the encoder by doing the following:
@@ Line 44: / Line 70: @@
 ====== Stage ======
+{{mcmaster:klinger:ut100:in1.jpg?300}}
+Above: stage open ,showing a sheared coupler
 If you crash the axis, an internal shaft coupler may shear (oops). TODO: figure out replacement part number
@@ Line 55: / Line 85: @@
 ====== Connector ======
+{{mcmaster:klinger:ut100:improvised_connector.jpg?300}}
+Above: improvised connector
 {{:klinger:ut100:jaeger19.png?600|}}
@@ Line 64: / Line 98: @@
   * I'm making same cables
   * Stepper wire: Molex 1552200235 (16 AWG, multi-conductor, 5 conductor)
+====== Assembly ======
+To remove the shaft coupler: remove the set screw at the bottom of the stage. Then rotate shaft until the second set screw lines up with the just opened hole
 ====== mcmaster ======
@@ Line 80: / Line 119: @@
   * Soldered a connector with pins 1-7, intended to test motor pins 1-6
-Unit 4 measurements
+Unit 4 (UE30-PP variable reluctance) measurements
-  * L @ 10 kHz
+  * A 1-2 L
+    * 120 Hz: 203 mH
+    * 1 kHz: 182 mH
+    * 10 kHz: 122 mH
+    * 100 kHz: 203 mH
+  * @ 10 kHz
   * A
     * 1-2: 122 mH, 24.7 k
@@ Line 90: / Line 134: @@
     * 3-5: 69.7 mH, 11.6 k
     * 4-5: 55.5 mH, 21.2 k
+Unit 6 (UE71 PM) measurements
+  * A 1-2 L
+    * 120 Hz: 46.7 mH
+    * 1 kHz: 30.0 mH
+    * 10 kHz: 24.2 mH
+    * 100 kHz: 45.1 mH
+  * @ 10 kHz
+  * A
+    * 1-2: 24.2 mH, 4.59 k
+    * 1-6: 6.09 mH, 1.13 k
+    * 2-6 6.10 mH, 1.14 k
+  * B
+    * 3-4: 23.0 mH, 4.59 k
+    * 3-5: 5.79 mH, 1.13 k
+    * 4-5: 5.79 mH, 1.12 k
+Questions:
+  * Is it possible to drive above using drivers I have on hand?
+  * Is it possible to switch parts to fix 50 mm stages with 25 mm parts (shaft coupler)
+  * Are stepper motors NEMA / can replace with MDrive?
+    * Does have nice adjustment knob, but unclear if I'd use it
+Rorze
+<code>
+-1 Suitable Motor
+You can use any HB(hybrid) or PM(permanent magnet) stepping motor with rating of 0.1 to 3A/ph.
+Select motors with rating of less than supply voltage × 0.7(V).
+</code>
+Highest inductance listed for sample motors is 2.2 mH. If I put the UE71 coils in parallel, 1.5 mH? Seems in the right ballpark anyway
+Maybe get some OEM350-RC
+UE71
+  * 103-770-11 motor: https://www.hobbielektronika.hu/forum/getfile.php?id=165680