J-Head temperature varies and heats up very fast.

Hello,

I am setting up my J-Head on my Tantillus and I just did a test to 190C and the temperature varied between 187.1C to 192.7C is this normal? I never have used a J-Head before, but all my other hotends (makergear or E3D) stay pretty close to the target temperature. I tried doing an auto PID to 150C and the J-Head heats up very fast and triggers the max temperature of 170C. Does this have anything to do with the system being 15v and having a heat resistor at 5.6 ohms?

Thank you for any suggestions,

Cameron

5c is a normal temp swing when in Bang Bang mode which the Tantillus firmware is set to use. If you would like to use PID you will need to enable it in the config and then do the PID tuning. Also be sure to have the heater block insulated with Kapton as the build guide says.

---

FFF Settings Calculator	Gcode post processors	Geometric Object Deposition Tool Blog
Tantillus.org	Mini Printable Lathe	How NOT to install a Pololu driver