ctx.top and no depth is a little odd

[Emery Denuccio]

I mean... the actual case doesn't make any sense, but it goes down to top, and then helixes upwards to 0 and it's kind of weird. I guess the problem is that it's just not clear in the simulation exactly what you did wrong because it looks like a normal helix path but it's going the wrong direction and you have to know that means you forgot to set a depth.

I think for the sake of air cutting I should min depth to top.