Tevo Tornado Dual extruder mod

cults3d

This is a dual extruder bracket and fan cover for a Tevo Tornado based on the Tarantula dual hot end design. Two Tarantula extruder motors are mounted at the top of the frame using their own brackets, replacing the Titan stock extruder from the Z frame to save weight. Firmware needs adjustments but I've been running this setup for months with awesome print quality. On 12/31/17, I added more detail and a couple of pictures. I would insulate the sides of the fan cover with Kapton tape as they are close to the hot end and may warp at temperatures above 240 degrees. The mod is based on the Tevo Tarantula dual extruder upgrade available here: https://tevo3dprinterstore.com/collections/tarantula-spare-parts/products/tevo-tarantula-dual-extruder-upgrade-full-kit-dual-extruder-cooling-fan-with-two-nema-step-motor. However, the Tarantula has a 12V board compared to the 24V on the Tornado, so heating elements will need to be changed. An example is available here: https://www.amazon.com/dp/B06XPDT2T6/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1. Firmware will also need to be altered for this setup. I've uploaded the firmware here: https://drive.google.com/drive/folders/1iaJfqGSp5Q7OX_au6vGL6Mc452soXLKp?usp=sharing. However, you'll need to verify it works for your printer as I've set steps per mm on the extruders to 228 for my setup. Offsets will need to be measured carefully between extruder nozzle tips for your specific configuration. I recommend using tape on the bed and marking nozzle positions both X and Y. For adjusting nozzle height Z alignment, get one spot on and levelled then lower the head against a steel plate and adjust the other nozzle to match. Installation is entirely at your own risk as I'm not responsible for any anomalies.