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LarryO

vw2021sp3(& older) dim to hole centers in extrusions, snap problems

Question

Issue: When dimensioning in the annotation space of view ports, the snap location to a hole's centre does not always appear.

This is most prevalent with extrudes, grouped objects and symbol objects but can occur in other situations.

On a design layer, create a rectangle centred upon 0,0. Place a copy in the clip board. Create four circles in various locations inside the rectangle.

Select rectangle and circles and clip surface. Extrude selected circles 8mm. Move punched rectangle to one side and extrude 6mm.

Paste in place original rectangle and extrude it 6mm. Lower extruded circles by 1mm below unpunched rectangle. Select both and subtract circles from rectangle.

On a sheet layer create a viewport to said design layer at say 1:4 scale to encompass both rectangles. Use a clip boundary. Now edit annotation and you should be able to place a dimension from any corner of the object to a centre of one or more of the circles. If not turn on the appropriate snap.

Next exit annotation change layer to design layer. Select both rectangles, duplicate and group. Move to one side.

Select both originals again, duplicate and create symbol. Move to one side.

Go back to the sheet and edit annotation. (adjust clip boundary first if necessary to see all six rectangles)

 

Attempt to dimension from any corner to any circle's centre. The centre snap points will not appear!

If you save and revert to saved you will probably be able to get the centre snap points to appear again but it will not be long before this functionality starts to fail again.

 

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