I worked for a record company R&D section and one problem with cutting laquers (for records....anyone remember them?) is picking up the chip at the beginning of the cut so it doesn't wrap around the cutting stylus and make a mess of things, if not just going up in flames. You don't want to "drop the chip" during cutting either.
The trick is getting the nozzle close enough to the stylus, but not so close that the vacuum noise is "heard" on the disc. .. With a really good quality system, you can hear the noise in very quiet passages with the gain up.
We used 1/4" aluminum tubing, bent and formed and cut the nose just right, and the chip went down the tube into the chip jar just fine.
Thinking of this gave me the idea to do the same thing with this problem, but if clogging powder is the glitch, then do a reverse spray mist thing....turn on the vacuum, then turn on a slight spay of water (injected into the nozzle instead of outside the nozzle) to flush the powder going down the tube?
....Just thinkin' out loud...  |