Please implement the ability to extrude thin features already. Trying to do injection molded parts is so tedious without this ability.
Currently you have to either...
1) Overcomplicate the sketches by 10x. Ensure that your sketches are 100% perfect. And never change anything. If you change anything it is almost certain that they crash because they have 10x as many sketch constraints as you actually need. This is further complicated because Inventor can't find closed spaces unless there is a point at every corner... So a single constraint out of the hundreds in the overcomplicated sketch are no longer real, it all crashes.
or...
2) you have to convert every line to a surface and thicken it. Problem is you can only do one surface at a time. For even a simple molded part this could be hundreds of different ribs and pockets walls. And if you have equation based or "Extrude To" functionallity, forget about it... You will be at it all day.
This is not a new thing... This post goes back 13 years asking how to do this... https://forums.autodesk.com/t5/inventor-forum/thin-extrusion/td-p/1022578
This one goes back 8 years... http://www.mcadcentral.com/threads/824-How-to-make-thin-features
Maybe I am missing something but this is a simple checkbox in SolidWorks. Super obvious, super easy, and probably 10x more stable. In the example below, Inventor would have taken at least twice as many features, 4x as many coincident mates, concentric mates, etc...
