Vast: 32 Command Ignored: Collision Error Message

[[Ma...]]

Hey everyone. I'm running into an error message that I can't seem to get around. I am trying to run a program that I've ran many times before. But now, after I complete the manual base alignment, the probe moves way away from the part and then an error message appears.
Has anyone come across this issue? I am stuck.
Thanks in advance.

error.PNG

[[Ma...]]

Do manual alignment and check "Show touch probe" to see if your axis after manual alignment are correct. Don't know much about your setup, but features in alignment can be tricky to get right ( like sphere of cylinder )

[[Ma...]]

Sorry, I'm new to Calypso. Where is the "Show Touch Probe" option?

[[Ma...]]

Please sign in to view this quote.

Menu bar -> CAD -> CAD model control -> Show probing object

[[Ma...]]

Please sign in to view this quote.

I'm not sure if that was supposed to help diagnose or fix the problem, but I checked "show probing object" and then ran the manual alignment. Sure enough, it's running.

Thank you for your help.

[[Ke...]]

Have you recently changed versions of Calypso? Is your program written in Metric or Imperial units? And if you could post a screenshot of your base alignment, that would likely be helpful, as Martin is very correct that it may come from an alignment issue. My understanding is that a 32 Collision error is essentially Calypso saying "If I were to execute the next command, the CMM would crash" so it stops the program. I most commonly see this in either flipped base alignments, or from trying to run Metric programs in Inch.


Edit-Looks like it fixed, feel free to disregard the above

[[Ma...]]

I would reconsider features used in base alignment - or use much simpler start alignment used only for manual alignment.
Surelly some axis were wrong - enabling show probe object won't do anything, it's just for view if touch probe is on spot or it's rotated.
Instead of using cylinder for axis use 2x circles and recalled their centers into 3d line - you will have better control of axis direction.

[[No...]]

Please sign in to view this quote.

Showing the probing object shouldn't make any difference for the alignment. So I suspect it may have been pure luck it's running now and you should revise your alignment features.

Things like this often happen when an alignment feature gets flipped accidentally. Classical beginners mistakes (we've all been through it I guess 😃 ) are spatial features like cylinders whose points were taken in the wrong order, or 3D lines that were created by recalling all points of two cricles instead of doing a simple recall (only center points).

Alignments created that way can work for a long time if the parts don't change much. But then one day there is one part that causes the alignment to flip and you wonder what's happening.

[[Ma...]]

Unfortunately, I can't show you the model. But really, I'm aligning to a cylinder and the cylinder face. I have not changed versions of Calypso. And I am running in inches.
It did run once after I turned on the probing object. And no, that was obviously not the fix as I have tried running it twice since then and I'm running into the same issue.
Again, I've run this program probably 8 or so times without issue.

[[Ma...]]

Please sign in to view this quote.

Model is not needed - this is enough.

[[Ni...]]

Please sign in to view this quote.

Considering that you're new to Calypso, its probably how you're doing the manual alignment that gave you that error message.
I've had many, many people new to calypso have similar issues when running a part just for me to run it without any changes and it works perfectly fine. Watching them I notice they all make similar mistakes so I will give you some tips that will minimize these issues.

The main issue I see is that a lot of people probe the minimum amount of points. 3 points for circle. 3 points for planes. 4-5 points for cylinder.

Once i tell people to use 4 points, their issues get resolved.

So use 4 points for circle. 4 points for planes. 8 points for cylinder.
Remember a cylinder is made up of 2 circles so 4 on bottom level and 4 on top level. make sure both levels are spread apart.

Same thing with planes. make sure those 4 points are spread apart. i have seen people do 4 points but they were not spread apart. Looked almost like a line. and that cause the machine to move in different directions. Probing near the 4 corners of the plane is the best thing to do.

Try those tips and you shouldn't have these type of issues anymore.

[[Ma...]]

Please sign in to view this quote.

I'm embarrassed to say it seems this is exactly what happened. I actually was using 8 points for the cylinder and 4 points for the plane. I tried it again with 12 points on the cylinder and 6 points on the plane and no problem.

I had to break off to do some other inspections for the time being. But I'm going to revisit it this afternoon. Hopefully, there are no more issues.

Thank you all for your feedback. I might have eventually figured it out but having help from experienced Calypso programmers is a wonderful tool. Thank you!

[[Ni...]]

Please sign in to view this quote.

8 should be actually fine for cylinders. Its possible they were not spread apart.
Here are some images i found in an old manual that explain perfectly what i am talking about. Since its an old manual it uses surface instead of plane, but it follows the same logic. The closer the points are the bigger the tilt and skew the machine will see. the farther apart they are from each other, the more stable it is.

Also keep browsing this forum. It was honestly how i learned so much and its the best. The people are very helpful.

surface and circle.PNGCylinders.PNG

[[Ke...]]

The order of the points in the cylinder matters as well. If Calypso expects top then bottom, and you take points bottom then top, the axis will be flipped and cause issues. This same order issue can occur with 2D lines.

[[Ma...]]

Please sign in to view this quote.

Quote about point order on cylinder isn't always true - i was performing same order even same points and still on shorter cylinder with bigger diameter it was acting up. If you are doing it maunaly, then i would rather pick 2x circle and scan on right places then using cylinder.
2D line is absolutely right

[[Ni...]]

Please sign in to view this quote.

I decided to test this out because it seemed interesting. Just tried it in the simulation and the order of the points in the cylinder didn't make a difference.

My cylinder was made of 1 circle path that had 2 sections. no difference when checking out of order
Cylinder with 2 circle paths that have 1 section each. No difference when checking out of order.
Cylinder that was constructed using the feature point recall using two 2 separate circle features. No difference when checking out of order.
I thought that one was going to make a difference.

My cylinder was used for rotation in space, x origin and y origin.

I am thinking maybe if it does make a difference, it would be if it's used in planar rotation. But technically you should only use circles for planar rotation from what I've been told.

[[No...]]

Please sign in to view this quote.

That's because cylinders as well as cones generally seem to be more sensitive to "fitting errors" than other elements, especially with unusual proportions. It's a phenomenon I've experienced throughout all the software packages I've used over the years. While it has greatly improved in Calypso, it still happens.