# Where are the extrude and scale values?

To be specific, if I extrude by pressing E and I type 40 (for 40mm), where do I look up this value on Blender?

Same for when I scale; I'd press S and type 0.2 (for 20%).

In a situation where I would go back to see the size of a face, how do I know if it was scaled 25% or 20%, or how would I know if a face was extruded to 40(mm) and not 55(mm)?

I need to know because I want precision or accuracy for 3d Printing.

• – Samoth Mar 25 '16 at 21:22
• You don't compare length of extruded part with base of extrusion; you should measure all the parts and calculate what's the difference is between them. To learn whether the face was extruded by 40 mm or 55 measure the edge between extrusion and its base. Related - blender.stackexchange.com/questions/274/… – Mr Zak Mar 25 '16 at 22:51
• The transformations are done in the units you set as scale for the scene. E 40 will extrude 40 units. To extrude 40mm, The units for the scene have to be set to metric, and the scale to .001. Alternatively you can leave the scale at 1 and then type E .04 to extrude 0.04m – cegaton Mar 26 '16 at 16:53