Issues creating second mate

[Anonymous]

Hi all.

I am having issues mating a plate to some bolts. The plate has four holes in it and I am trying to mate it onto four bolts (well I only need two to hold it in place). The first hole to bolt mates fine, however the second has an error. This usually means that I have got different distances between the bolts, compared to the holes, however in this situation, it seems fine, so I am not sure why inventor wont allow me to mate with two bolts concentrically.

Please find attached the files for this project.

Another issue I am having is that my assemblies have stopped automatically updating when I change a child part in a different window. I can manually do this by going to file menu > manage > refresh, but would prefer it if this happened automatically again. I have not changed any settings.

Thanks in advance.

[BLHDrafting]

David, nothing attached. Also what Inventor version are you using?

[Anonymous]

Apologies. For some reason ie does not work for attachments on this forum for me. I am using Inventor 2012.

Cheers

[BLHDrafting]

David, I believe your problem is that the distance between the 2 longest hole sets is different to the 2 longest bolt distances. Do a measure and turn on All Decimals.

Then measure between the 2 bolts. I get 157.320508076 mm but when I measure between the 2 holes I het 157.321 mm. This is a common problem when you don't have All Decimals on.

If you mate between the 2 short hole sets then it works fine.