I designed these medals for my son's birthday party. He and his friends are big fans of the series "Riders of Berk". Each medal has a loop to be mounted on a necklace (up to 2mm better 1.5mm).
The medals are designed for a two color print. Please see the printing instructions below.
I printed them with a color (red, blue, green or black) and a glow-in-the-dark PLA filament. We put the medals on thin (1mm) black leather stripes as necklaces. The kids were amazed - and Dad was pleased :-)
There are three ways to print the medals in two colors, which I explain in more detail below:
1) Stop & Change: Stop the print, change your filament and continue the print
2) Dual Extruder: You have a dual extruder 3D printer and you master the print with two nozzles
3) Two Prints: Print the base first and print on top the dragon
If you would like to print the medals in only one color, please look in the first method "Stop & Change".
Personally I used the last method. My 3D printer is a dual extruder and I printed the base with one nozzle and the dragon with the other.
Stop & Change
This is best method, if you want to use only one color or you want to print directly. The disadvantage of this method is that the loop of the medal is also two colored.
The names of the STL-files for this method are starting with "Medal...". If you would like to print a medal with a Boulder class symbol, choose "Medal1-Boulder.stl".
Import the STL file into your slicer software and slice it. Look on which layer the medal base ends and the symbol starts. You have to pause your print at this layer and change the filament. After that, continue the print.
If you are using Cura, than you can use the "modify G-Code" option to do so. Please consult the internet for the instructions.
This is the best method, if you have a dual extruder printer with calibrated nozzles.
Please import "Medal-Empty.stl" into your slicer software. Than import the respective symbol. The names of the STL-files for the symbols-only are starting with "Dragon...". If you would like to print a medal with a Boulder class symbol, choose "Dragon1-Boulder.stl".
Please ensure that the symbol is NOT snapped to your platform but stays in position where I modeled it (z = 2mm).
Than assign different extruders (colors) to each object and print.
In my case the second filament (second color) smeared on the medal base during printing. Most likely the temperature is too hot. I have to calibrate for optimal filament settings... Instead I used method 3 - see next chapter.
This methods works fine with single and dual extruder printers. This disadvantage is that you have to arrange a bit more in pre-printing.
Please import "Medal-Empty.stl" into your slicer software and print it. That was the first print. Easy.
Now start a new project and import the respective symbol. The names of the STL-files for the symbols-only are starting with "Dragon...". If you would like to print a medal with a Boulder class symbol, choose "Dragon1-Boulder.stl".
Please ensure that the symbol is NOT snapped to your platform but stays in position where I modeled it (z = 2mm). The symbol is now floating in the air.
Than import a spacer to bring your platform to the right printing height. If you printed the medal base without a raft, import "Spacer-for-no-raft.stl" otherwise "Spacer-for-raft.stl".
Now print both objects (symbol & spacer) with the same raft settings as the base medal.
I sliced into files and printed from a SD card. I copied once the base for my left extruder and for each medal the symbol with spacer for the right extruder. So I could print the base in glow-in-the-dark and the a symbol in a color - without changing too often the filament.
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