Edit unit tolerances.

[lalbaladejo]

Revit allows you to change the unit tolerance of it's dimensions, which is great for dimensioning when you are off by a 1/16th of inch or so in your modeling. But you can't change tolerances in the units in the model or the temporary dimensions themselves. Instead we're stuck with measuring with a presition up to 265th of an inch! that is an insane amount of presition for a building. The result is building elements that are actually slightly off their actual dimensions if you are not extra careful. Revit's units dialog window should be like Auto CAD's, with a precision option.

[dplumb_BWBR]

Use dimensions to place elements accurately instead of eyeballing and yo won't have that problem.

[lionel.kai]

@lalbaladejoYour office has the precision set to 1/256"? AWESOME! I see too many clients (mostly architects) using the OOTB precision (I really wish they'd change it), or that purposely set it to round to 1/8" or even 1/4" - it drives me NUTS having to explain over and over again that you should set the UNITS to the smallest available (1/256" or a bunch of decimals), model EXACTLY, and have a 2nd "rounded" dimension style for those RARE situations when you need to round (such as when dealing with intersections of non-orthogonal elements) - see idea: Prefix and Suffix Text in dimension Style - such as adding "±" to all dims, etc.
 
That said, what exactly do you want Revit to do (that it doesn't already)? I'm a little confused, because "building elements that are actually slightly off their actual dimensions if you are not extra careful." is the result of rounding your dimension units...

EDIT: LOL - another email today was for the August AUGIWorld, and guess what's in it? "What's in Your Units" which is apparently a reprint of this: https://www.augi.com/articles/detail/unitsosaurus-set-up-revit-for-success

[hidroform]

@lalbaladejo 

Perhaps I didn't understand your question, because in practice, that would not change anything.
Note that if you intend to work in Revit in inches in the Drawing Units box set to Architectural Type, the accuracy will also be 1/256 ".
Also, in Revit, you can also increase the number of decimal places and improve accuracy.
But would it be necessary for civil construction projects?

Sergio Murilo

[DZimmerKVJT2]

@lionel.kai @dplumb_BWBR  - you may misunderstand, the Project units cannot change precision. Oh, it SAYS it does, but that's a ruse; it's make believe. I thought that this would be fixed in 2024, but it remains unchanged. I've gone thru every unit type in every discipline and the ELEVATION of pipes (middle, top, invert, at both ends) and the SLOPE of pipes ALWAYS shows to the nearest 256th.

(The unit TYPE can be changed i think - from feet and fractional inches to decimal inches, but that messes up my coworkers who also want 1/8" or even 1/16" precision - nothing in Revit is CLOSE to that accurate anyway, especially in MEP)

For people with less than great vision, it further aggravates the difficulties the software creates for us. For example, i have to use DARK mode in 2024 otherwise there is no distinction between categories in the properties dialog. 

Some of hte other menus are even worse. Like right-click dialog boxes. There is almost zero distinction between greyed out items and other, usable text. 

And before you say it's a Windows setting, we've established that it's not. Some text in Revit is, but mostly it's pure Autodesk.

I can have Revit 2017, '18 .... thru '23  open and show dialog boxes side by side on the same computer. But other people have done this.

The icons have greatly decreased in contrast as well. This happened in AutoCAD about 10 years ago and my then-employer's inhouse IT was unhappy with me noting it. Almost mocking me for nitpicking but again, for the vision impaired this is a serious problem that causes extra eye strain. My eyes were much better then.

One must browse through so much small text in Revit  but the icons were all colored differently and therefore easily identified at a glance. I've found that mild to moderate vision impairment is one of the least understood handicaps, despite it being perhaps the most common. Not just nearsightedness, but typically that paired with other ailments.

I'm a little disappointed that despite this issue being noted to AD on other products over the years that they still went ahead and inexplicably worsened it on 2024. Like why go BACKWARDS? 

For text elevations, this is hard to read: 0' 5 77/128" 

Why not just: 0' 5 5/8"

(Personally, feet and fractional inches is bad enough; I'd use decimal inches if i could but we're living in a society, and I have coworkers who don't need me changing stuff on them that they're used to. They also assume it's just me and I'm an idiot that doesn't know how to indicate unit precision, confusing this as my first rodeo)

Of all the problems, this one is small but complete inexcusable. When the software just doesn't do what you tell it to and has been this disobedient for many years, something is wrong. It's indicative of the overarching problem, IMO.