creating a perfect cube with only one numberic value

[dvohwinkel]

Using constraints I can make the initial sketch with only one numeric value. You then have to extrude and give it a value to make the cube. How can I use a constraint from one sketch to another?  I know I can create a variable and use that but I am looking for a way to have one sketch reference another and the perfect cube is a simple example that people/I can understand.

[TheCADWhisperer · Accepted solution]

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@dvohwinkel wrote:

 You then have to extrude and give it a value to make the cube. How can I use a constraint from one sketch to another?  

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Each time you create a dimension - it is automatically assigned a variable number.

Example d1, d2, d3...

Simply make the extrusion distance (or any other dimension) equal to the dimension that you want to reference by name.

[dvohwinkel]

Thank you that works perfectly.