My rafts only snap loose when a few layers of the object adds to the force.
nophead> If you do that the raft will have less strength to resist the layer above contracting.
Do you mean that the zigzag pattern reduces the strength? I'm only talking about the foundation layer now. Or the fact that the raft surface is a rectangle regardless of the object's shape?
Another idea for you guys to shoot at:
The raft outset is currently a proportion of the extrusion width. But a very long object would have a lot of warping force along its length, and much less along its width. So actually the outset of the raft could better be a function of the amount of force. As a rule of thumb, this could be the proportional to the dimensions of the object along the respective axes. Small footprint objects hardly need a raft at all. Wide footprints mostly need a wide raft, etc.
nophead> If you do that the raft will have less strength to resist the layer above contracting.
Do you mean that the zigzag pattern reduces the strength? I'm only talking about the foundation layer now. Or the fact that the raft surface is a rectangle regardless of the object's shape?
Another idea for you guys to shoot at:
The raft outset is currently a proportion of the extrusion width. But a very long object would have a lot of warping force along its length, and much less along its width. So actually the outset of the raft could better be a function of the amount of force. As a rule of thumb, this could be the proportional to the dimensions of the object along the respective axes. Small footprint objects hardly need a raft at all. Wide footprints mostly need a wide raft, etc.