How much spacing should I leave between parts?

A minimum of 3-5mm between parts is recommended. This prevents parts from fusing if there is any oozing, and gives the cooling fan space to work around each part.

Should I print multiple parts at once?

Batch printing saves time on heating and first layer setup, but increases risk — a failure late in the print wastes more material. For reliable parts, batch printing is very efficient.

What margin should I leave from the bed edge?

Leave at least 5-10mm from the edge. Many printers have clips or less accurate levelling at the edges. The centre of the bed typically gives the best adhesion.

3DPrintCalcs

Build Plate Calculator — Parts per Plate

Work out how many copies of a part fit on your build plate with spacing.

Bed Width (X)

Bed Depth (Y)

Part Width (X)

Part Depth (Y)

Spacing Between Parts

Edge Margin

How We Calculate This

Formula

Usable area = Bed size - 2 x Edge margin
Parts per row = floor((Usable width + Spacing) / (Part width + Spacing))
Parts per column = floor((Usable depth + Spacing) / (Part depth + Spacing))
Total parts = Parts per row x Parts per column

The spacing is added to the usable dimension because the last part in each row does not need trailing spacing.

Frequently Asked Questions

Related Calculators

Bed Levelling Calculator

Calculate mesh bed levelling points and spacing for your build plate size.

Adhesion Calculator

Estimate the contact area and adhesion force for your print footprint.

Brim Width Calculator

Calculate optimal brim width based on part footprint and material shrinkage.

Raft Calculator

Estimate extra material and time for raft adhesion layers.

Bed Temperature Calculator

Find recommended bed temperatures for different materials and surfaces.

Last updated: February 2026

All calculations are estimates. Always verify settings with test prints before committing to final prints.