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There are several temperature excellent temperature tests available on the market and the one that we use at 3DAF Inc is directly inspired by several existing iterations which has been redesigned to incorporate more testing into the same inexpensive print.
What is a Temperature Tower?
A temperature tower is a stress test that prints each sequential tier at a different temperature to check the quality of several print factors including bridging, overhangs, dimensional accuracy, luster ….. to narrow down the best temperature to print a material at based on the needs of your project.
This temperature tower model features 10 tears allowing you to test a range of temperatures. Conventionally, temperature should be tested in 5 intervals. It is important to keep the highest temperature at the bottom as the lower temperatures may have issues extruding and could cause negative effects on the overall test. For a basic material like PLA your table should look like this;
For the most part when performing a temperature tower, you should use the same print settings that you would like to use with conventional printing with the suggested settings below as guide;
How to Control the Temperature?
Simplify 3D and Netfabb will allow you to change the temperature within the slicing software. For those of us who are not using these software's changing the temperature within your program is easy as pie by following the steps below.
****During this process we are going to modify the G-Code program sent to your machine. It is important to be careful and ensure that only these changes are made and that they are made correctly in order to ensure that there is no damage to your machine or errors that prevent the testing from being successful.****
1. Import the file into your slicer
2. Pick a base mid range temperature for filament. (200°C for PLA)
3. Program using your preferred settings with the following guide above.
4. Export your G-code Program.
5. Copy the program and rename it.
6. Open the copy in Notepad or Notepad++ so that we can edit the G-Code Program. To affect this change, we will be going into the code and adding in M109, Set Temperature and wait for temperature change. Depending on you heater core you may see you machine physically stop when it reaches this code. The M109 code uses the word “S” to determine the temperature. The code we will enter will look like.
7. Once in the program use the CTRL F to find the lines that we need to change (below is a list of lines and temperatures for PLA)
8. Copy in the additional code. It is better to copy and paste than to type! If you type in more characters (ie. 2220 for temperature) it can cause unwanted issues such as errors or burning out your heater core depending on your safety settings.
9. It is best practice to use CTRL F and run through all the numbers again to ensure that all of the new code added is correct.
10. Save The program.
11. Transfer it to the machine and run the program.
12. Once Complete use the below guide to check over the results.