On 1 Dec 2015, at 06:46, Gene Heskett wrote: > On Monday 30 November 2015 22:48:23 Steve Traugott wrote: > >> For a muffler, loosely stuff some random open-cell foam rubber scraps >> into a 5-gallon bucket. Attach an outlet hose to the vacuum and stick >> the other end into your bucket full of foam rubber. Works >> surprisingly well relative to the time invested. >> >> In the case of the bucket max, it also might work to invert the >> muffler bucket upside down on top of it, cutting a hole in the bottom >> for outlet air and in the side for inlet hose and cord. That would >> kill the noise from the motor itself as well as from the exhaust air. > > I'd have some concern about the heat rise of its motor if it was that > confined. One 3 button run is about 13-17 minutes of runtime with the > limited feed speeds, although I've found the 1/16" mill, plowing 10 to > 12 thou deep, can be safely moved at 18 ipm IF the vacuum is keeping the > cutout groove its making clean. As for hooking the outlet to a couple > of 90 sweeps and sticking it back into a bucket full of foam, I don't > think there is room on the floor for the 3rd bucket. But I have an oval > wire basket from a defunct paper shredder that might fit, as would one > of those yellow plastic 2 gallon trash cans. I'll check that out > tomorrow, er, ah later today. > > I was surprised to see they sell a plastic muffler for about $13, but its > only a 5 db reduction, and it could stand to be 15 to 20 to adequately > quiet it. A 7/16" OSB box, sized to fit the space, and stuffed full of > open cell foam might work. IIRC theres a small roll of rug under-layment > in the basement that might be just the ticket except its closed cell. > Or I could live with it, I've only about 40 or 50 more buttons to make. > But the vacuum use has made it possible to speed things up from 4 ipm > and a blast from an air hose about 2x a pass over the loop to clean out > the groove, to 18 ipm with the vacuum running, so its definitely worth > it. > > Thanks Steve. >
The other way of tackling this is to use ear defenders, although you will not be able to hear the phone unless it is right next to you. I just upgraded to a pair of 3M Peltor OPTIME III jobs. 38dB attenuation, and the best I have worn yet. Doesn't solve the sound level at source, but sure defends the ears. Marcus > [...] > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Genes Web page <http://geneslinuxbox.net:6309/gene> > > ------------------------------------------------------------------------------ > Go from Idea to Many App Stores Faster with Intel(R) XDK > Give your users amazing mobile app experiences with Intel(R) XDK. > Use one codebase in this all-in-one HTML5 development environment. > Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. > http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
