Difference between revisions of "Bender Rotation Directions"
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# The direction of rotation can be indicated with a CW or CCW direction of rotation from the viewpoint of a viewer at the front of a bender looking toward the rear of the bender. | # The direction of rotation can be indicated with a CW or CCW direction of rotation from the viewpoint of a viewer at the front of a bender looking toward the rear of the bender. | ||
| − | # When a bender collet rotates CCW to rotate positive, then it uses the American industry standard, the standard for our VTube software.<br><br> | + | # When a bender collet rotates CCW to rotate positive, then it uses the American industry standard, the standard for our VTube software. In this case, +90 would rotate the chuck 90 degrees CCW.<br><br> |
| + | # When a bender collet rotates CW to rotate positive, then it uses the non-American industry standard, the opposite of the VTube software. In this case, +90 would rotate the chuck 90 degrees CW.<br><br> | ||
| − | + | The engineering community uses a simple right-hand/left-hand rule to designate which way an axis spins positive. (This is an image from the BobCAD-CAM site:) | |
| − | The | + | |
[[image:bobcad_righthand_rule2.png|400px]] | [[image:bobcad_righthand_rule2.png|400px]] | ||
Revision as of 01:34, 30 March 2021
The "positive" direction for rotations in benders is NOT standardized. It is important to understand how to determine rotation directions to avoid confusion through mirror-imaging parts accidentally.
- The direction of rotation can be indicated with a CW or CCW direction of rotation from the viewpoint of a viewer at the front of a bender looking toward the rear of the bender.
- When a bender collet rotates CCW to rotate positive, then it uses the American industry standard, the standard for our VTube software. In this case, +90 would rotate the chuck 90 degrees CCW.
- When a bender collet rotates CW to rotate positive, then it uses the non-American industry standard, the opposite of the VTube software. In this case, +90 would rotate the chuck 90 degrees CW.
The engineering community uses a simple right-hand/left-hand rule to designate which way an axis spins positive. (This is an image from the BobCAD-CAM site:)
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 your thumb toward you.
- The arrow centerline is the centerline of the tube coming out of the collet.
- The direction of the curl of your fingers represents the direction of a positive rotation.
- Therefore, the right-hand rule indicates that positive rotates CCW.
European and Asian benders usually follow the LEFT-HAND rule - which means that positive rotates CW. (To prove this, hold your left hand so that your thumb is pointing at you. What direction do your fingers curl?)
