Break Statement for Looped Base Alignment

[[Te...]]

When you enter the break statement in your loop for the base alignment is it always in metric?

baseSystem().valueA<0.005 I am guessing it is always in metric but just would like some verification.

I used 0.0002 in an inch program and it runs all 5 loops when normally in a metric program 3 is the most it runs.

I know PCM for CMM Position is always in metric so it would stand to reason that it is always metric.

Thanks

[[Ow...]]

It's been a while since I've tested it but, I believe it "now" is whatever unit you use it in.
It didn't used to be that way but, at some revision they changed it.

[[Jo...]]

Hey Ted,

valueA is not an inch/metric number, it's the total transformation of the new alignment from where Calypso expected to find it. It uses a matrix to combine X, Y, & Z translation with rotation about X, Y, & Z so it's kinda inch-degrees or millimeter degrees. Because of this if you convert the 0.005 used in a metric program to 0.0002 for an inch program you are actually setting the threshold a lot lower...meaning you want a tighter alignment. For inch programs, I usually go with 0.002 which is 0.005/25.4*10. Depending on your part this may be too loose or tight. Run the alignment 5 times without a break condition & check the delta values in the default printout. It should stabilize after 2-3 runs & give you an idea of where to set it. Feel free to give me a call or shoot me an email if you want.

[[To...]]

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According to my sources, from version 5.4 on, this value was based on the unit of measure of the program.

[[De...]]

I am fairly sure that the A value is the delta value based on the unit of measure your plan is in. We typically use 0.001" and most programs go through 3 iterations in that loop. If you go more than 5 your base alignment is probably not sufficient, or at least that has been my experience.