For the lazy people and those (e.g. me) that weren't able to search well for it:
M376: Set bed compensation taper
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Best posts made by Ted
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RE: Gradually reduce grid compensation when printing
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RE: Gradually reduce grid compensation when printing
That is a good point @Edgars-Batna!
That would also give us the possibility for another special usecase: Knowing the height oft the first few raft layers you could have the actual model printed without any distortion. Only the raft is used for compensation.