VinniUSMC
PC-DMIS demi-Guru
Last Activity: Today, 11:35 AM
Joined: 04-04-2013
Location: Holland, MI
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For a free state check on a CMM without a purpose built checking fixture, generally just using the minimum number of contact points should be sufficient.... -
There are a few things to unpack here.
First, yes, a surface profile with no datums (what we call "Form Only" in PC-DMIS) is a...Leave a comment:
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Form only of a sphere is different than form only of a plane, because it is a feature of size. Yes, the best fit sphere is going to be in the envelope... -
This isn't technically correct. Form only is "unilateral" in the sense that the size of the zone is value, like TP. When you are not dealing... -
Having made exactly 0 fixtures, and being explained the process 1 time by 1 fixture manufacturer, I feel that I am highly qualified to answer this question....Leave a comment:
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Paul has a new user name?
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2) is wrong. Flatness calculates fit without consideration of the orientation of the plane, independent of any alignment. Your T values will very likely... -
No, it does not create a tangent plane. Tangent plane is a construction fitting option. If they're measuring with a dial indicator, they're probably measuring... -
If you are leveling to a best fit plane, that plane is different than a tangent plane (which also has different fit algorithms), and they will most likely... -
You're right, jerk.
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Pesky zombies. /headshotLeave a comment:
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Yeah, that's not relevant to the original question though. The hole perp to A then the opposite surface perp to the hole. So, really, it could have been... -
I can't speak very well to the overall validity of this particular set of feature controls, but my guess above seems to be correct. First, control the... -
Ok, and what are datums A and D?
Given the refinements, I would wager that the intent of the 0.15|B is definitely perpendicularity. Assuming... -
That's my thought as well, but the OP came back and mentioned something about "the original FCF", so I am withholding until the OP comes back... -
I don't have a slider in 2017 R1. Is that a recent addition? -
Oh, I'm so used to the default that I didn't realize you could make a positive by just typing "-", lol -
Yes, it is possible. There's a setting, I think in the F5 (but I'm not sure) that makes it so you must input "-" to make a minus tolerance....Last edited by VinniUSMC; 07-20-2020, 07:43 AM.Leave a comment:
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