alexrj/Slic3r — Issue #85: Request equivalent of bridge flow rate multiplier
Author: rtgoodwin
Created: 2011-12-01 19:14:38+00:00
State: open

When tuning for bridges, in my limited experience(!), there are two ways to solve the problem of "loopy/drooping" bridges:

1) move the print head faster so that there is less time for the plastic to drip: this sometimes works, but of course depends on the reliable extrusion speeds of your printer, acceleration, etc.
2) adjust the amount of plastic that flows during the bridge lines, so that the plastic is stretched more "taut", and thus can't droop. for example, in SF you might change the modifier for Bridge flow rate from 1.0 (default) to something like .7.

This can be tested against SF and Slic3r's capabilities by using any of the bridging models on thingiverse, like the ultimate bridging model from Triffid Hunter or simpler ones from hardik.

Not saying this is the best or only way, but #2 demonstrably works in the limited situations I've tested it. It probably best remains an advanced setting, in the event that default internal bridging logic isn't sufficient.