here is my script to set fan speeds

[bash64]

#setfanspeeds.sh
sudo sed -i 's/.speed./ "speed": '"$1"'/' /usr/sbin/uni-sync.json
sudo /usr/sbin/uni-sync
exit

#pass the fan percentage speed you want on the command line i.e. setfanspeeds.sh 75
#assumes the json file is in /usr/sbin/
#restarts the service
#set up your own desktop icons to run this