Quick bridge calibration test

by caru, published

Quick bridge calibration test by caru Mar 31, 2011
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Quick bridge calibration test by caru is licensed under the GNU - GPL license.

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I needed to make sure that bridges are printed right, before trying to print the x-ends of the Prusa Mendel design.
I tried with a hollow cube, but it wasn't a reliable test for many reasons, so I openscadded a more accurate emulation of the x-ends bridges, which only takes around 3 minutes to print with my settings.


  1. Try to print the STL
  2. If it doesn't do a one layer bridge only, tweak the .scad
  3. Take your time to try various bridge settings till you get it perfect.
  4. Start your first print of the x-ends with confidence ;)

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What did you change to be able to make these bridge? I have needed to print a couple things that when bridging it was really stringy and needed alot of cleaning.