Z-Offset Calculator — First Layer Adjustment
Calculate fine Z-offset adjustments for perfect first layer squish.
Your current Z offset value
How We Calculate This
How It Works
- Ideal first layer height = Layer height x 0.8 (80% gives good squish)
- Squish percentage = (Layer height - Ideal) / Layer height x 100
- Adjustment = Based on observed issue (too high/low)
- New offset = Current offset + Adjustment
The ideal first layer is slightly compressed compared to subsequent layers. This extra squish ensures the filament is pressed firmly into the bed surface for good adhesion.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify settings with test prints before committing to final prints.