Estimate 'oversize' Profile fha error correction

[[Ch...]]

I have a question regarding inspection of a ground gear with a CBN wheel.

When production brings a part in that is oversized (approx 0.010" thicker tooth on external gear), for a set-up inspection. T
The profile will show fha angle error, however when it is ground into size, the profile angle will correct.

Using older manual machines, they could simply change their base circle diameter to see what it "would" look like if it were 'at size'.
We're looking for an option in Gear Pro to be able to 'see' what it 'would' look like if brought to size.

I think 'tooth thickness correction' option might do it, not sure, but I'll give that a try in the meantime.

Thank you !

[[Ro...]]

Tooth thickness correction will only correct the start/end measurement position in case of a gear where the tooth thickness is far away from the nominal value. Without tooth thickness correction you´ll typically getv"shifted" profile measurements on the flank were you don´t feed-in (normally the left flank). See attachment Case 1. With activated tooth thickness you´ll get "correct" evaluation and not shifted profile charts. See attachment Case 2.

What you want to see is maybe something additional.
Just do a measurement and load the .act file into GEAR PRO.
After that open geometry and change the base circle diameter indirectly by changing e.g. the pressure angle, the helix angle or the module.
Maybe this helps?

tooth thickness correction.png

[[Ch...]]

Roman,

Thank you. Yes, I've seen Case 1 a few times. What has worked in helping to correct that also is , scanning path extrapolation
.

I've thought of modifying the gear data of .act file, however I don't think it will produce what they are looking to accomplish. I will try it though.

Are there any other settings/modes that might allow modification of the Base Circle?

Thank you for your help !

[[Ch...]]

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Roman,
Hi. This did the trick. Thank you for the info!