Dimensioning – putting equal – equal on a dimension for 2 holes around a centre line say with the centre distances of the holes on too. Good Practise or not?

Never seen “equal” on a drawing but not 100% what you’re asking!

Over dimensioning IMO. One or the other.

Dimension them on a common PCD? Think it’s up to you/company/client practise – as long as there is sufficient info on the drawing to re-draw it/manufacture it based only on what is on the drawing sheets then you’ve passed the first/major hurdle 😉

You got to think about the guy who has to build it. Have you provided all the info he needs? How you present that info isn’t that important as long as its correct and easy to understand and is consistent

Put the = sign on either side of the centre line along with the dimn. normal practice.

There is enough info on the drawing, I always thought putting = = around a centre line was bad practise, but my current boss doesn’t. Not that it matters.

I guess I have been influenced by the older guys who I used to work with who drew everything by hand.

It in not necessarily bad practice and I have seen examples of this on many drawings. The only problem is if the reader is not able to quantify what ‘=’ means from other dimensions.

Dimension between the holes, with a equal each side is usually sufficient in our place.

EDIT – and for our subbies

eg/

Yes but the OP said around a C/L there isn’t one on that example.

I know – I was showing what was sufficient for us & our subbies.

If they were absolutely position critical holes, eg. dowel holes, location holes or some such, I wouldn’t be using = X =, everything would be off datum faces. For stuff like mounting holes, tapped holes etc… I’d say either as I’ve done above or with a CL, doesn’t really matter.

Ah yes.

This is making me miss engineering 😐

Me too.

Spend my time on illustrator instead of solidworks these days 🙁