From 216aa33b4144c985ab57120571a6f2946e2b278b Mon Sep 17 00:00:00 2001 From: Anson Biggs Date: Tue, 7 Aug 2018 03:39:44 -0700 Subject: [PATCH] Just needs tags and pics #3 --- .../Stringing Test/README.md | 32 ++++++++++++++++--- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/Yet Another Test Suite/Stringing Test/README.md b/Yet Another Test Suite/Stringing Test/README.md index 11bfdc5..29381e9 100644 --- a/Yet Another Test Suite/Stringing Test/README.md +++ b/Yet Another Test Suite/Stringing Test/README.md @@ -8,21 +8,43 @@ YetAnotherTestSuite, YATS, 3dtest, print, printer, test, calibration, guide, tes ## Summary -Stringing is +Stringing, also often referred to as Oozing, is when a print has small hairs or in extreme cases thick lines of the filament in between two print locations. Luckily cleanup for Stringing is generally pretty simple as long as the stringing isn't extreme. If you are unfortunate enough to have extreme stringing, then this guide and the included test print should get you up and running in no time. + +*This model is fully parameterized if you have Inventor.* + +## Contents + +This project contains a .stl file that has 3 Cones in a line so they each have a different distance between them. There is also a .ipt file if you have Inventor and would like to make modifications to this. This model only uses one parameter, the longest distance you want stringing to be tested at it automagically does the rest for you. ## Goals of This Print -// +The two major factors affecting stringing are **Retraction** and **Temperature**. Too high of a Temperature would cause a host of other issues in your prints so if you are mainly just experiencing stringing then Retraction is probably your issue. The included .stl tests stringing from 0mm to 15mm by default. Small strings often referred to as hairs are very common at small distances and are very easy to clean up after the print has finished. If stringing is prominent on the longer distances then I would look into the troubleshooting steps. + +### Retraction + +Most every slicer has this ability, and thankfully this is more than likely your issue if stringing is an issue. Retraction causes your printer to pull some filament back when moving the print head in between parts of your print. The two parameters for this setting are **Distance** and **Speed**. Distance is how much filament gets pulled back, and speed is how fast it pulls it back. Mileage varies greatly by the printer so it's important to search online for some good baseline values to get started. The values I use for my Ender 3 are 6.20mm Retraction Distance, and 5100mm/min Retraction Speed. It is important that you do not set either of these values too crazy high because you can strip your filament causing it to not feed to your extruder. + +### Temperature + +*If stringing is your only print issue, then your temperature is probably fine.* + +Too high of a temperature can make your filament really thin meaning it can come out the extruder tip just from a little gravity. This is pretty easily fixed by dropping your extruder temperature by 5ish degrees C. + +### Clean-Up + +Small amounts of stringing are perfectly fine and extremely easy to clean up after a print has finished. If there are only a few hairs I've had good luck with just rubbing them off with my finger, or if you have a large amount then using a heat gun or hair dryer usually melts them away pretty quickly. Superfine sandpaper works great as well. + +Larger strings should be easy to fix with the above steps, but if you do end up with one then clipping them off with a pair of small diagonal wire cutters or worst case some fingernail clippers. Really anything that can cut close to the walls of the print. ## Print Settings ### Rafts -// +Shouldn't be necessary. ### Supports -// +Nope ### Resolution @@ -30,7 +52,7 @@ Stringing is ### Infill -// +Shouldn't be necessary, if your having issues then do exterior layers walls. ## Download