Jump to content

Start Alignment


Recommended Posts

I put my start alignment in after i have my program finished.
We use start alignment only when doing manual alignments, base alignment for normal runs.
3 points is all i use for start alignment, 1 point each for X & Y & Z, no planes or lines.
remember that if you leave your level or rotation empty in the alignment, the program will default to machine axes for level & rotation.
So when we start a program that needs manual alignment we use start alignment with manual selected.
program will prompt operator for 3 points, after that the program will run like normal.

Personally the reason i started using start alignment was because we had a family of parts (80 to 100 programs) that had almost no flat surfaces, all surfaces were either angled or rounded. Datums were centered between angled planes and manual alignments were difficult and took a long time to do. After instructing my operators to "look at the screen and take 3 points as close as possible to where the points are on the model", our alignment times went from 5-6 minutes to less than 1 minute, with no drop in accuracy.

Capture4.JPGCapture44.JPGCapture444.JPG

Link to comment
https://qualityforum.zeiss.com/topic/17910-start-alignment/#findComment-100614
Share on other sites

  • 6 months later...

Please sign in to view this quote.

Here's one example that I used to know. Hopefully I didn't forget anything. Thanks to Mark Busha and/or John Pearson for the following:

Let say you have an impeller blade and you're using a point on one of the blades for your planar rotation. Most likely, you'll want to use a loop in your alignment to zero in the repeatability of that point. However, the cycle time of looping the other BA features may make for a long cycle time. You can use the Start Alignment as your Base alignment, excluding the planar rotation. You'll want to run the Start Alignment in automatic mode. Then, the Base alignment will only have the point in the planar rotation. After the start alignment runs, then base alignment runs with the loop active, but it will only loop the point until the rotation meets the condition statement.
Link to comment
https://qualityforum.zeiss.com/topic/17910-start-alignment/#findComment-100626
Share on other sites

×
×
  • Create New...