Is it possible to set a minimum & maximum value for a sketch dimension ?

francois_boulet

Using variables or otherwise, is it possible to set a minimum & maximum value for a sketch dimension ?
Giving different values to some variables affecting the mentioned dimension, I want to be able to choose the value of that dimension and make sure that the result will stay between some defined limits.
The link: 
https://cad.onshape.com/documents/6de388c6d4ffa687115fa4a3/w/c2519130b0ffff206097bbc8/e/997c32e1b83badc941474d66
Included; the Part studio and a PDF

The real question might be: Is it possible to have a conditional value in the last part of the formula ?

francois_boulet

Thank you guys !
Thanks for your first link Bruce.
It lead me to Brian Brady's comment:

brian_brady said:

You can also nest conditionals by placing another complete conditional statement in either the true or false positions. I suggest using parentheses around the second statement (may even be necessary) for readability.   #width<4?1:(#width>4?3:2)

Now I can say:
It is possible to set Min & Max value for a sketch dimension using variables and conditional expression. (See the updated PDF)

Thanks again to you guys.
This Forum is great !

3dcad

The easy answer would be no, it's not possible to set limits using variables.

But as you can control variable values using feature script where you can set conditions according to user input I would say this is possible to achieve with Onshape.

Edit: As it appears you can do this also without fs.

bruce_williams

Here is good post on expressions (including conditionals) by @lougallo

And another thread on expressions

francois_boulet

Thank you guys !
Thanks for your first link Bruce.
It lead me to Brian Brady's comment:

brian_brady said:

You can also nest conditionals by placing another complete conditional statement in either the true or false positions. I suggest using parentheses around the second statement (may even be necessary) for readability.   #width<4?1:(#width>4?3:2)

Now I can say:
It is possible to set Min & Max value for a sketch dimension using variables and conditional expression. (See the updated PDF)

Thanks again to you guys.
This Forum is great !

billy2

Configurations allow for variable input range.

Take that variable and define it in a configuration.

remi_gendron

So since no one actually answered this simply enough, I will.
So FFR:
There is a max(x, y) and min(x, y) conditional you can use.
BUT THESE DO THE OPPOSITE OF WHAT YOU THINK
max(6, 8) will return 8 as it is the bigger number.
min(2, 4) will return 2 as it is the smaller number.
The order of the numbers don't matter.