Differences

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--- thc:thc [2019/11/28 10:15] – ivan
+++ thc:thc [2020/02/19 13:45] – ivan
@@ Line 56: / Line 56: @@
     - Make a test straight cut and check Arc Voltage during the cut (it is "96V" for the setup below). \\ \\ {{hardware:thc:mycnc-thc-011.png}}
-This second method is recommended for more experienced users who want more granularity and quality control.
+This second method is recommended for the more experienced users.
 **5.** Select the proper ratio, as described in the Initial Setup part.
@@ Line 68: / Line 68: @@
 {{:thc:thc-setup-007-acceleration.png}}
-**8.** Set the **THC Low Speed** value. Whenever the speed of the machine will fall lower than this value, the possibility of the arc voltage fluctuating rises greatly. Thus, to prevent the torch from diving, the last height value before the speed goes below your THC Low Speed value is taken and maintained until the speed rises back up again.
+**8.** Set the **THC Low Speed, [%] of feedrate** value. Whenever the speed of the machine will fall lower than this percentage of the feedrate, the possibility of the arc voltage fluctuating rises greatly. Thus, to prevent the torch from diving, the last height value before the speed goes below your THC Low Speed percentage value is taken and maintained until the speed rises back up again.
+The below diagram illustrates the way THC Low Speed works. On corners (green), the speed falls below the typical Feedrate #1 (red), so it can be used to disable THC on sharp corners. Feedrate #2 (blue), which is typically different from Feedrate #1, is used for hole and arc cutting. This way, THC will still be ON at smooth corners:
+{{:thc:plasma-setup-016-percentage-cutting-hole-speed.png}}
 **9.** Select the Hi/Lo event output port (63 by default).
@@ Line 117: / Line 121: @@
 The next step is to check if THC is ON in the User Settings.
-It can be a button in User settings of an item in PLC settings. Both settings will turn THC on/off and both represent the same variables - the user can decide which one they want to use out of convenience.
+It can be a button in User settings, or a toggle in the PLC settings (Settings > PLC). Both settings will turn THC on/off and both represent the same variables - the user can decide which one they want to use out of convenience. Typically, the User Settings window is used.
 {{:thc:thc-setup-user-settings-001.png}}