Please see figure and see if you can help me figure out what is up?
why is solid works giving me different dimension. (0.4961 vs 0.5000). the sketch is fully define. I draw this scenario on both platforms.
I think SolidWorks is giving you a correct accurate results. Something wrong with your AutoCAD drawing (perhaps the rectangle is not coincident with the centerline in your AC drawing). Please take a look at the following calculations:
Thank you Artem! After I cheked your answer, I could not argue with those calculations and went directly to see what was going on with ACAD. It was something to do with the Acad rounding off option.
I used Draftsight, I got what you have shown for Solidworks. Your Acad version could be incorrect.
Make sure your units setting in your Acad do not contain non-zero value for "rounding off"
One way to check this is to use command window and type "getdistance" and specify the 2 points.
You should get 0.4961.
I do not have AutoCAD. Not sure that I understand your point. According to the calculations 0.4961 is the correct value for this dimension (regardless of CAD system). This value cannot be 0.5 that's why SolidWorks and DraftSight are giving this result.
Why do you expect this to be 0.5?
ACAD/Draftsight has a dimension rounding off feature that most ACAD users loved to use, however more often than not, forgot to turn it off when not needed. It helped in many occasion to make drawings looked "neat" but of course trading off a little bit of accuracy. As shown attached, I can conveniently show 0.500" without moving the lines.
I suspect this is the case here.
You can round your dimension in SolidWorks so it shows up as 0.5. Please see below:
Can SW set to 0.500 or even 0.5000? ( 2 trialing zeros or more) It looks unnecessary for have more than 1 zeros behinds but for people who use number of decimals as marker for tolerance, they would need this.
Thank you KK!!
I changed the "Round to the Nearest" option and it worked. I changed to 0.0000 and it gave me the .4961.
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