1. First things first: you're going to need a copy of RepRap Firmware.
Either download a fresh version from GitHub, or edit your existing one.
You can edit your existing firmware either through the online configuration tool, or through G-Code.
If you download a fresh version of RepRap Firmware you'll have to configure more settings than the ones mentioned in this guide so that it will work well with your printer.
2. Flip the corresponding line in your:
S1 to S0
or vice versa:
You can also simply send the:
command through your favourite printer control software.
3. The next thing we'll have to update is your printer's E-steps-per-mm.
Your slicer will generate G-Code for your printer, which will tell it to extrude a certain length (in millimetres) of filament. Your printer takes those lengths of filament and calculates how much it should rotate your Titan's stepper motor to push out the expected amount filament. This number is used to make that conversion
4. Start with a ball-park estimate of your E-steps-per-mm, and then fine-tune it. If you're using the standard Titan motor, start with:
5.1 Over USB Connection
Use a printer control software to connect to your printer. Send the command:
M92 E<your number here>to your printer.
to store your settings
5.2 Update your
file manually, update the following line with your new number:
To get a more exact value for your E-steps-per-mm, measure the exact amount of filament that is pushed out of your extruder.
6. Load filament into your extruder, just until it is gripped by the drive shaft (you can't pull it out without moving the large gear turning)
7. Mark your filament at the top of the idler arm or PTFE tubing with a pen or permanent marker.
8. Tell your printer to extrude 100mm of filament. Use your printer's LCD screen, or send it:
via your printer control software.
You may need to heat your HotEnd before your printer allows you to extrude filament. You can use M302 command to get around that.
9. Mark your filament again at the top of your idler arm or PTFE tubing
10. Eject your filament.
11. With a ruler or callipers, measure the distance between the two marks on your filament.
If the distance wasn't exactly 100mm, use a proportion to calculate a more precise E-steps-per-mm value.
12. Enter that new value into your firmware or EEPROM as you did before.
13.1 Manual Editing:
For firmware versions 1.16 and earlier, send the following G-Code command to your printer:
M305 P1 B4388
For firmware versions 1.17 and later, send the following command instead:
M305 P1 B4725 C7.060000e-8
13.2 Online Tool:
Click on the Calculate Thermistor Coefficients button in the Heaters tab, and select
Semitec 104-GT2 (used by E3D)
from the drop-down menu.
Update, For the most recent version of the reap rap firmware you should be using the following parameters for the thermistors.
T parameter: 100 000
B parameter: 4725
C parameter: 7.06e-8
14.1. Manual editing:
Update your maximum temperature by sending the following G-Code command to your printer:
While the Titan Aero's metal components can handle very high temperatures, the included thermistor cartridge will struggle with temperatures over 285°C (if you want to go higher, get a PT100).
14.2. Online Editing:
Update your maximum temperature by going to the heaters tab and changing the option to:
15. Save the firmware to your SD card as you normally would. If you're having issues, check with your printer's manufacturer.
If you're unsure of how to update your printer's firmware, check with its manufacturer.