I have found that placing a face somewhere along a curved path, the FollowMe tool offsets the resulting profile from the path?
Placing the face on either end works fine. Very strange. I am using sketchup 2018 pro. Maybe later versions have fixed this?
Share an example file that does this so we can see.
FollowMeCurvePathOffsetting.skp (465.9 KB)
Thatâs interesting. Iâve never seen that before but then Iâve never seen anyone set up for Follow Me that way.
Itâs shifting the extrusion over by the distance between the edge of the profile and the end of the path. Looks to me like itâs doing exactly what itâs told to do. Start the extrusion with the profile relative to the end of the path. Same as youâd get if you started with the profile here.
Also note that since the profile isnât set up perpendicular to the first segment in the path it gets projected to perpendicular, not rotated, which changes the width of the extrusion from the original profile.
The correct way to set up for Follow Me would be to place the profile at the end of the path and perpendicular to the first segment in the path.
yeah.
follow me, in your case, will flatten the face so itâs perpendicular to the starting point. because your path is not a loop, it has a start and an end.
and when doing this, the flattened face is now not directly in contact with the curve. hence the small shift.
thatâs why itâs often recommended to start with a line perpendicular to your face, so it wonât get distorted.
Yes I would normally set a profile at one of the ends, but I was experimenting with a plugin called âPerpendicular Custom Faceâ by Chris Fullmer. I thought the strange FollowMe behaviour was due to this plugin in some way but found that it was FollowMe! Lesson learnt here. 
Perpendicular Face Tools is a useful thing if you need to place a profile at the end of a path that isnât on axis.
