How do I enter dimensions in Fractions of an inch?

david_hambleton

I want to have all my measurements in Feet, inches and fractions of inches.  How can I accomplish this?

daniel_chow

Beside the OnShape text at the top RIGHT of the screen, you will see an options icon with three horizontal lines. Click it > Default Unit Length > Foot

Now you can enter your units as feet. 1 1/2 feet can be entered as "1.5" etc... 

NeilCooke

You can also easily mix units within a part by specifying the units in the dimension.  For example if your part is in inches but you want to specify some dimensions in feet and inches you can enter (1+7/12)ft.  If you want to include fractions of an inch it becomes slightly more complex, such as (1+(7/12)+(1/12)*(9/16))ft which equals 1 foot, 7/12 of a foot (7 inches), (1/12)*(9/16) of a foot = 1/12 of a foot (1 inch) times 9/16 = 9/16 of an inch.  

david_hambleton

So, what you are saying is, there is no simple way to design and label with fractions of inches like a carpenter in the United States would use? 

NeilCooke

No there is no simple way to dimension in feet and inches as you would on a drawing board. Your best bet would be to keep it in inches then the calculation is not so onerous. 3D CAD systems need floating point numbers to calculate exact sizes, so numbers need to be input the same way as you would on a scientific calculator. 

ilya_baran

You can enter

1ft+(7+9/16)in

which looks a bit better.