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PC_DMIS GEAR Alignment

Timothy Anders

Hello all,

 New to PC-DMIS and PC-DMIS GEAR maybe a few months in. I have run into some issues with the alignment in GEAR. I have an external spur gear When I load the files into gear for the alignment, probe, and measurement routine and run the alignment it asks for 3 points on the plane and 3 points in the gears bore then 1 point left side of tooth one and 1 on the right tooth 1. once thats done it goes into DCC and does the plane and bore then touches a point on the major of a tooth and then tries to travel on that plane through the gear to touch off on the root. I have tried to create my own alignment to bypass the generated alignment however I keep getting z axis errors. I do the same call outs on my manual alignment  3 pts on a pln 3 pts on bore circle. Anyone know what is needed for the "initial imported alignment" file or what would make the program try to move through the gear? Is there something with CAD that could be an issue? I appreciate any help.

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  • 0

    Can you share your alignment program that you tried to manually use?  

    I have always preferred writing my own program to align to the gear.  I use a plane, level to it, measure my circle, set my origin on a circle, then take the hits on the tooth(OD) or gap(ID), followed by a midpoint, then rotate from the circle to the midpoiunt.  For the DCC measurement, I usually repeat the midpoint section 3 times, with the thought that each one gets a little bit closer, to wipe out my poorly measured manual tooth measurements.  

Reply
  • 0

    Can you share your alignment program that you tried to manually use?  

    I have always preferred writing my own program to align to the gear.  I use a plane, level to it, measure my circle, set my origin on a circle, then take the hits on the tooth(OD) or gap(ID), followed by a midpoint, then rotate from the circle to the midpoiunt.  For the DCC measurement, I usually repeat the midpoint section 3 times, with the thought that each one gets a little bit closer, to wipe out my poorly measured manual tooth measurements.  

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  • 0 in reply to Matthew Beecher

    Thank you I believe I have figured it out. I was not creating a newly named alignment file once created. So I was essentially overwriting my .ALN file every time I tried to run the program. I had to figure out the correct way to utilize the folder drop boxes. However Matt I am interested in how you set up your alignments for gears as you explained. For my manual alignment I use a plane and a cylinder not sure if that is necessary same for my DCC aln. I have no clocking points in my program but I generate them from the alignment tab and it runs a series of touches on the tooth. Once that's generated that's what I use as my measurement alignment. I feel like this may not be the most effective way to align the gear but it is how i was able to successfully run my measurement routine. I am open to any tips and help. I am working with assemblies that have either splines or teeth so creating my own alignment will be the most effective. Thank you all for the help!!

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