I was in inquisitive mood today and was experimenting after noting the speeds of modern spindles. So i'm on holiday at the moment so was tidying up "the shed" i've been looking into high speed spindles for a short while and looked through the stuff I had laying around and I present you with my findings on the crap...ahem good stuff I found laying around
I found a turbocharger impeller and housing and wondered if a vacuum cleaner could "reverse power" a spindle...Anyone ever tried this? My findings are that I cannot measure the speed of the spindle (my tach craps out "mt139a by snap-on" @ 30.000rpm) however it sounds really nice (read high pitched whine...turbo style. My judgement on this leads me to think it may work for engraving use! reason being it is major high speed and only requires a "shop" vacuum cleaner! (Henry in my case and he's an old chap nowadays) I first tried it by the method "I thought would work" and I was wrong :shrug: I thought to draw the air through the outlet of the the turbo! and it only made 20.000 rpm....However when I drew it through the inlet side it made the bearings I had work overtime!! It blew the mind of my tacho too lol is this a new application or is there an existing product out there? I was thinking it could power the spindle...And collect dust/crap from the cutting area (if it didnt abrade the turbine too much
. Any thoughts are welcome and if indeed it is a new application i'd wish it to be open source for all for free.