Fish line was too weak. So I tried a different string and it worked out for now.
I reduced the build diameter from 150.00 mm to 70.00 mm at the moment due to design flaws of the carriage and shape of effector plate. How to maximize the build diameter in this configuration?
4.00 mm thickness of effector plate develops bend at each point where the spring pulls. I’m working on new effector that fixes the flaws and has small profile so that final build diameter over 150.00 mm. Build diameter of Bulbul Junior is 120.00 mm at the moment.
The effector plate is in bad shape. I’ve noticed that every two or three days the nozzle moves up 0.2 to 0.3 mm.