Skipped ops are real escapes
Parts move between machines, fixtures and people. Sometimes a part skips a station, or a program stops early, or a setup is run without the last operation. The part then looks finished and is not. A tired shift or a rushed changeover makes it more likely, and the part still looks mostly right.
Missing features can be caught later by an assembler or a customer, which is the expensive way. Catching them on the bench before the part leaves is cheaper. Catching them on the bench before the part leaves is cheaper, and it protects your name with the customer. It also saves a trip back through the machine shop.
How VZSOR sees it
The station learns what the whole part looks like when it is right. A missing hole or chamfer changes the picture in the same way a scratch does, only bigger. The heatmap lights up where the part departs from the good set.
Because the model learned the complete part, it does not need a separate rule for each feature. It needs good examples of the part as it should look. That keeps setup simple. You show it good parts, and it notices when a part does not look like them, whatever the reason. The operator then checks what the heatmap points at.
Presence, not size
This is a visual presence check. VZSOR can flag that a hole looks absent. It cannot tell you whether a hole is the right diameter, the right depth or in the right position. The station does not read dimensions off the picture.
For size and position, keep using your gauges, your CMM and your drawings. VZSOR sits next to them. It is not a replacement for any of them, and it makes no dimensional claim. Think of VZSOR as a second pair of eyes on the bench, not a measuring tool.
What a pilot would test
The validated part is a simple L-bracket, and the tested defects are dents, scratches and nicks. Missing features have not been validated as a defect class. We expect an absent feature to be visible, but we have not proven it.
A pilot on your part would use a few parts with the feature deliberately left off, and measure whether the station flags them. That is the honest way to find out. It would also count how often good parts get flagged by mistake, since that decides whether operators trust it.
How a shop sets it up
- Pick the part and the view where the feature is visible.
- Make sure the feature faces the camera. A hole on a hidden face cannot be seen.
- Photograph about 60 good parts and run the wizard, about 30 minutes.
- Prepare a few parts with the feature missing for the test set, if you can make or keep some.
Limits, stated plainly
- Missing features are not yet validated as a defect class. Only dents, scratches and nicks are.
- Presence only. VZSOR does not measure diameter, depth, position or thread quality.
- A feature on a face the camera cannot see is not checked.
- Very small features may not change the picture enough to matter. A pilot tests this.