chrisb wrote: ↑
Wed Oct 16, 2019 9:38 am
The ISO idea is not to have the helper lines going from
the dimension in the direction of the workpiece. It talks about extending
the workpiece. I would derive from that, that there should be no gap in between.
On the other hand, as far as I remember it, the most important rule is that a drawing must be in such a way, that it is universal and understandable without the possibility of interpretation. Having a small space between the workpiece and the helper line should in my opinion not lead to confusion. (Although, there might be certain edge cases where it does)
Actually it improves readability in my opinion - but thats just my personal interpretation.
Obviously, if you need to provide drawings to some company and there is room for interpretation of the drawing due to the relaxed drawing style, you will get in trouble.