It can be difficult very with Kapton so I switched to PET which is easier to remove from.
I use a adjustable pliers similar to these: [
www.denlorstools.com] to grip the edges of the part and twist it off. If I fail in one direction I twist it until it creeks a bit and then go the other way. Each time it creeks it gets a bit looser.
Another strategy is to hit them sideways with a hammer via a block of soft wood to cushion it and a cloth behind to catch the object.
Parts that have no flat edges can be impossible to remove without damaging them, or the tape.
If you increase the first layer height a little it makes them much easier to remove.
[
www.hydraraptor.blogspot.com]
