Hi, after following a few tutorials, I had successfully hooked up a HC-05 Bluetooth to the riprap. However, when I tried to print from Macponterface with the gCode, the printer becomes very jittery and stuttering, I wonder why that is? has anyone had experience with this type of connection?

If I were you I would use Bluetooth to send the file to the SD card and then use the Bluetooth to start the print from the SD card.

Thanks for the Reply. I was hopping that I could send the code from any BT connected computer. But I guess it doesn't work that way.