Attendees: Ted, Mike R, Rod, Tom, Bill.

The Club took a look at retraction settings and did a small workshop on manipulating parameters and seeing the results. Everyone did a nice job in bringing samples of retraction towers. Bill led the group in reviewing the parameter settings in Cura. See the workflow Document for Bill’s notes.

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Retraction towers https://www.thingiverse.com/thing:3071464 .

Bill demonstrates tower and parameters. Didn’t have to do adjusting. See his pics here.

A small design of experiments showed that for the Ender 3 you want at least 3 mm of retraction and somewhere between 45 and 50 mm/sec rate. The default rate out of the box for Ender 3 in Cura is 5 and 45 respectively. See the Workflow document for detailed results. Note print temp was 200C except for Rod and Kermit had 210C.

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