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How does the exterior and sparse infill work? I’ve exceeded the 1.2 ratio.

Date:2016-03-07 Hits:1
mingda 3d printer allows you to print a fine perimeter layer height along with a thicker infill. You'll find 'Print Sparse Infill Every __ Layer(s)' in the 'Infill' tab.  Use this setting to achieve a high quality exterior while saving time printing the infill.

The 'Sparse Infill" value you enter is related to your 'Primary Layer Height' (layer tab). The perimeter will print at your 'Primary Layer Height', and then the software will multiply the primary height by __ (the number you enter) when printing your sparse infill layers. For example, if you have a primary layer height of 0.1500 mm and set the Sparse Infill value to 2, your infill will print at 0.3000 mm (0.1500 x 2).

For proper adhesion of layers, the software will not allow you to exceed a 1.2 ratio of width to thickness.  If you exceed this ratio, MINGDA 3d printer will warn you. If you get the warning, try reducing the exterior layer height.

Additional examples:
0.1 mm fine exterior height - sparse infill can print every 2 or 3 layers
0.15mm fine exterior height - sparse infill can print every 2 layers
0.2 mm medium exterior height - sparse infill not suggested at medium or draft exterior levels

There is a similar Sparse Infill setting under 'Support' which works in the same way to create a sparse infill in your support structures.