It aims to make calibrating your 3D printer as easy as possible. If you find it helps you and you would like to say thank you, here is a donation link: PayPal.me
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It aims to make calibrating your 3D printer as easy as possible. If you find it helps you and you would like to say thank you, here is a donation link: PayPal.me
Special thanks to my Patrons for suggesting this video, helping define the contents and testing/proofing.
Watch the videos and then work through each tab. I have created a custom gcode generator to assist in making testing towers. This used to be a laborious process and beyond the skills of many users. Other times pre-sliced gcode was used from the internet, but it is impossible to have gcode available for every printer configuration. Until now!
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Some people prefer to have multiple walls and measure them together. For example, if the extrusion width was 0.4mm with two perimeters, then you would be hoping to measure 0.8mm for the cube wall. This does introduce more variables, such as the amount of perimeter overlap, and therefore a risk of the process failing. This is why I personally prefer a single wall cube, but each to their own.
Unfortunately, I can't provide pre-sliced gcode for this process. It is vital to use gcode generated by YOUR slicer. Setting up your slicer to print the cube in the right way should be simple by following these steps:
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Step
Cura
Simplify3D
PrusaSlicer
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1. Import STL
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Besides hot end temperature, there are five parameters we will be tuning relating to retraction. In the table is a description of each as well as where the setting is found in the most popular slicers. By far the most important is retraction distance.
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Retraction Parameter
Cura
Simplify3D
PrusaSlicer
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Retraction distance: The length the filament is pulled away from the nozzle in mm.
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Slicer settings such as coast and wipe: Coast stops extrusion slightly early to assist retraction. It effectively lets the hot end 'run dry' at the end of the printing movement to reduce ooze. This varies from slicer to slicer and isn't always necessary to tune.
Wipe moves the nozzle back towards the recently printed geometry to wipe ooze off. If you are having trouble reducing stringing, it may be a good option.
Both coast and wipe are turned off in the gcode generator below.
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Maximum extruder feedrate: Your firmware may have a hard limit imposed on extruder movement that is below the retraction speed values you are attempting to use with the form above. You may need to use M203 to raise the extruder feedrate limit to try higher values for retraction speed. This potentially needs to be saved with M500 if you want it to be permanent.
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Maximum extruder feedrate: Your firmware may have a hard limit imposed on extruder movement that is below the retraction speed values you are attempting to use with the form above. You may need to use M203 to raise the extruder feedrate limit to try higher values for retraction speed. This potentially needs to be saved with M500 if you want it to be permanent.
Travel feedrate: A travel move is one where the printer moves to a new location without extruding. The slower this move is, the more time filament will have to ooze from the nozzle and add to stringing. The default feedrate is set to 100mm/sec in the gcode generator above, and increases or decreases based on the user feedrate input. Matching this in your slicer is advised if these tests look better than your own slicer results.
Travel acceleration: This test does not manipulate travel acceleration but increasing its value may help reduce stringing. You can change travel acceleration with M204 and the T argument.
Linear advance: Linear advance, covered later in this guide, can drastically improve the accuracy of our extrusion. It has a significant impact of retraction (reducing the need), so after configuring linear advance you may need to revisit retraction.
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Calculating maximum feedrate - optional but strongly recommended
One strategy is to calculate the fastest your 3D printer can move while extruding cleanly, set this feedrate in the slicer, and then tune acceleration to meet this speed. If you are not interested in printing as fast as possible, skip to the next section.
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This part of the guide and calculator is adapted from Martin Pirringer's tutorial. Please consider supporting him and his robotics team through paypal or you can also donate to team 1989 through their Team 1989 Web Site
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This part of the guide and calculator is adapted from Martin Pirringer's tutorial. Please consider supporting him and his robotics team through paypal or you can also donate to team 1989 through their Team 1989 Web Site
The following calculator will assist you in determining the maximum feedrate your printer/extruder/hot end is capable of.