Thank you for your brilliant idea and model. I enjoy too much.
But I had some trouble with spiral part and rotation handle. It seems that my UP!3DPlus2 is not precise as yours. So I modified these two parts. May I show them in my youtube channel? Off cause I show the credit of property.https://youtu.be/zmBsFyfFGl8https://youtu.be/pV8E_KVsTqU