Ultimaker / Cura

3D printer / slicing GUI built on top of the Uranium framework
GNU Lesser General Public License v3.0
6.18k stars 2.08k forks source link

The perfect Bridge? #14135

Open FlailAway opened 1 year ago

FlailAway commented 1 year ago

Is your feature request related to a problem?

Slightly sagging first Bridge-printed Layer.

Describe the solution you'd like

Watch this https://www.youtube.com/watch?v=B0yo-o47688

Apply the clever video idea longitudinally for the bridge area, but using straight lines on the longest sides of the area to be Bridged.

Let's say a bridge opening is 10mm-wide (walls are 10mm apart) and the walls are 20mm-long.

For the first bridging pass, print the 20mm edge at half a nozzle width (or less) out and parallel to the 20mm edge.

Index across a half-nozzle width and travel the 20mm back.

Repeat until the other wall (10mm away) is met then carry on with the normal non-Bridge process of printing.

An alternative could be to to do this process for both walls moving towards the center of the 10mm bridged width. Possibly adding variables for any slight Gable if any sag is created and maybe an adjustment to flow rate.

Describe alternatives you've considered

Current bridging relies on minimal sag. With the above, here should be none.

Affected users and/or printers

No idea.

Additional information & file uploads

In case the above video link is stripped out.

YT video Maker "CNC-Kitchen" Title "Arc Overhangs make Supports Obsolete"

Sophist-UK commented 7 months ago

Duplicate of #14036 ?