I was one of the first to buy this from FP. Mine didn't have a flange to the bit that screws into the motor so the tube slips off. It's still OK - but it certainly does not work like shown in the video. My version takes some loving care to keep the tube on the metal bit.
Clearly he's improved the system since I got mine.
-S
The first few that I built I did not flare the end of the little pipe and I found out that the plastic pipe would come off. I thought I contacted all that purchased one of the first ones and explained how to fix. My mistake.
Pull the plastic pipe off and take a center punch and give it a few hits with a hammer. It will spread out the end of the metal pipe and should hold the plastic on. Ya might need to heat up the plastic a bit.
If that doesn't work I'll send you another at no charge. It is real easy to fix.
fp
I looked it up and I did contact you about the first few I built. You PM'ed me back and said you would fix. PM below
Tony,
A couple got by me that I forgot to flare the end of the metal tube and the plastic tube was loose. . Maybe if yours is loose put a drop of superglue on it or flare the end with a center punch or similar. Sorry, 1 got loose that a guy called me about.
Sorry,
Fred