MullOverThings

Useful tips for everyday

# Why are my 3D prints coming out rough?

## Why are my 3D prints coming out rough?

What’s Causing this 3D Printing Problem? The most common cause is simply that the print just doesn’t bond to the surface of the print platform. If the platform is uneven then for some parts of the print the nozzle won’t be close enough to the platform to correctly extrude and bond the first layer.

## Does more infill mean stronger?

In general, the strength of an FDM object is directly tied to the infill percentage used during printing. For example, a part utilising 50% infill is approximately 25% stronger than a part that utilises 25% infill. However, the amount of strength gained by increasing infill percentage does not increase linearly.

## What is the strongest infill pattern?

Infill & Shells

• Triangular Infill: Triangular infill is the strongest infill pattern because triangles are the strongest shape.
• Rectangular Infill: Rectangular infill is the only infill type that can achieve a 100% dense part because it consists of a grid of parallel and perpendicular extrusions.

## How can I maintain the same percentage of infill?

To maintain the same infill percentage, the infill lines must be spaced further apart. For this reason, many users tend to increase their infill percentage after increasing the infill extrusion width.

## What to do if your infill is weak?

If your infill appears to be weak or stringy, you may want to adjust a few settings within the software to add additional strength to this section of your print. One of the first settings you should investigate is the infill pattern that is used for your print.

## How to use 3D print infill settings-increase strength?

Cubic is a great compromise between strength, print speed and keeping the model light / low filament usage. Overlap is the amount the edges of your infill is printed into the outer walls of your print.

## How does infill increase the strength of a cantilever?

At a low infill percentage, the internal density of the cantilever is insufficient to withstand the stress of connection. As a result, it will snap off at its connecting point. Increasing the infill percentage will increase the density of the connection, with a corresponding increase in strength.