Understanding CNC Bender Rotation Directions - Revision history

Mcone at 01:18, 30 March 2021

2021-03-30T01:18:45Z

Mcone at 01:17, 30 March 2021

2021-03-30T01:17:36Z

Mcone at 01:12, 30 March 2021

2021-03-30T01:12:54Z

Mcone at 01:10, 30 March 2021

2021-03-30T01:10:44Z

Mcone at 17:56, 18 October 2007

2007-10-18T17:56:33Z

Mcone at 17:55, 18 October 2007

2007-10-18T17:55:49Z

Mcone at 17:54, 18 October 2007

2007-10-18T17:54:04Z

Mcone at 17:53, 18 October 2007

2007-10-18T17:53:18Z

Mcone at 17:52, 18 October 2007

2007-10-18T17:52:52Z

Mcone at 17:52, 18 October 2007

2007-10-18T17:52:13Z

← Older revision		Revision as of 01:18, 30 March 2021
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	# The arrow centerline is the centerline of the tube coming out of the collet.		# The arrow centerline is the centerline of the tube coming out of the collet.
	# The direction of the curl of the rest of your fingers represents the direction of a positive rotation.		# The direction of the curl of the rest of your fingers represents the direction of a positive rotation.
		+
		+	(European and Asian benders usually follow the LEFT-HAND rule.)

← Older revision		Revision as of 01:17, 30 March 2021
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	<br><br>		<br><br>
−	In this illustration~~, you~~ are standing in the front of the bending looking toward the back. ~~The~~ thumb of your right hand ~~is pointing~~ toward your face~~, and~~ the curl of the fingers ~~show~~ the direction of a positive rotation.	+	In this "right-hand rule" illustration:
		+
		+	# You are standing in the front of the bending looking toward the back.
		+	# Hold your right hand up in front of you.
		+	# Point the thumb of your right hand toward your face.
		+	# The arrow centerline is the centerline of the tube coming out of the collet.
		+	# The direction of the curl of the rest of your fingers represents the direction of a positive rotation.

← Older revision		Revision as of 01:12, 30 March 2021
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	[[image:bobcad_righthand_rule.png\|400px]]		[[image:bobcad_righthand_rule.png\|400px]]
		+
		+	<br><br>
		+	In this illustration, you are standing in the front of the bending looking toward the back. The thumb of your right hand is pointing toward your face, and the curl of the fingers show the direction of a positive rotation.

@@ Line 1: / Line 1: @@
 [[image:cncbender_logo.jpg|400px]]
-The rotation directions on benders can be confusing.  Many bender controls use the opposite directions from others.  Here are few guidelines to help understand rotation directions:
+Positive direction rotations in benders are NOT standardized.  It is important to understand how to determine rotation directions to avoid confusion through mirror-imaging.
-# Regardless of which way a bender bends (left or right), the direction of the negative and positive rotations stay the same when the controls are the same type.  A control that changes direction based on bend-hand does not follow the standard approach (nor is it the most logical - See Note 1 below).  So the "hand" shouldn't matter.<br><br>
+# Regardless of which way a bender bends (left or right), the direction of the negative and positive rotations stay the same when the controls are the same type.  Any control that changes direction based on bend-hand does not follow the most-used approach for rotation directions (See Note 1 below).  So the "hand" of the bender shouldn't matter.<br><br>
-# The direction of rotation can be safely indicated with a CW or CCW direction of rotation from a common viewpoint relative to the bender.  The most common viewpoint is from standing in front of the bender and looking into the collet.<br><br>
+# The direction of rotation can be safely indicated with a CW or CCW direction of rotation from a common viewpoint relative to the bender.  The most common viewpoint is from standing in front of the bender and looking into the collet. (See Note 2.)<br><br>
-# If a bender rotates (+) positive in the CCW direction, then it uses the industry standard and the CNC Bender software standard.<br><br>
+# When a bender collet rotates CCW to rotate positive, then it uses the American industry standard, the standard for our software.<br><br>
-CNC Bender Software can be setup with POSITIVE rotating either CW or CCW.  However, by default, all CNC Benders leave SMT setup with CCW the positive direction.
+CNC Bender Software can be setup with POSITIVE rotating either CW or CCW.  However, by default, all CNC Benders leave SMT setup with CCW being the positive direction.
 Note 1: It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite hand benders (left to right and right to left).

← Older revision		Revision as of 17:56, 18 October 2007
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−	Note 1: It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite ~~handed bender~~.	+	Note 1: It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite hand benders (left to right and right to left).

@@ Line 4: / Line 4: @@
-# Regardless of which way a bender bends (left or right), the direction of the negative and positive rotations stay the same when the controls are the same type.  A control that changes direction based on bend-hand does not follow the standard approach (nor is it the most logical*).  So the "hand" shouldn't matter.<br><br>
+# Regardless of which way a bender bends (left or right), the direction of the negative and positive rotations stay the same when the controls are the same type.  A control that changes direction based on bend-hand does not follow the standard approach (nor is it the most logical - See Note 1 below).  So the "hand" shouldn't matter.<br><br>
 # The direction of rotation can be safely indicated with a CW or CCW direction of rotation from a common viewpoint relative to the bender.  The most common viewpoint is from standing in front of the bender and looking into the collet.<br><br>
 # If a bender rotates (+) positive in the CCW direction, then it uses the EL standard (and the standard used by many other benders - including our CNC Bender software).<br><br>
@@ Line 10: / Line 10: @@
 CNC Bender Software can be setup with POSITIVE rotating either CW or CCW.  However, by default, all CNC Benders leave SMT setup with CCW the positive direction.
-<block>
-*It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite handed bender.
+Note 1: It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite handed bender.
-</block>

← Older revision		Revision as of 17:52, 18 October 2007
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−	**It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite handed bender.	+	'*'It isn't logical because the bend programs written on either hand bender would then be incompatible with the opposite handed bender.