home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   rec.crafts.metalworking      Metal working and metallurgy      215,367 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 215,020 of 215,367   
   Jim Wilkins to All   
   Re: 3D Printing - Big Struggle   
   01 Dec 25 16:22:56   
   
   From: muratlanne@gmail.com   
      
   "Bob La Londe"  wrote in message news:10gks1b$1kelm$1@dont-email.me...   
   ...   
   Some of you guys must have gotten dragged kicking and screaming into the   
   3D print world.  Tell me what its better for than subtractive machining   
   other than a handful of parts that can't easily be machine.   
      
   I do see where injection molding is good for production parts, but   
   injection molding makes a stronger part in seconds per cycle.  3D   
   printing escapes me and yet I have fallen victim after a long time   
   struggling with finding significant advantages.   
   Bob La Londe   
      
   ------------------------------------   
   I'm not convinced either but I keep looking. A promising use I saw at a fair   
   was TPU resilient mounts for some old car or machine. That may not benefit   
   you who can machine molds from a CAD drawing, though.   
      
   The more accessible air tank drain is a good suggestion. Mine is a rubber   
   hose with a needle valve on the end that doesn't make it whip around if   
   slightly opened. I drained it yesterday and was happy to see no sign of   
   rust, as I had sloshed LPS-3 around the tank and dried it in hot sun before   
   remounting the motor and pump. The white froth is air that dissolved under   
   pressure.   
      
   Air can be compressed but water vapor can't, it just condenses. A steam   
   table lists water vapor pressure at various temperatures. Water boils when   
   its vapor pressure is 1 atmosphere.   
   https://pages.mtu.edu/~tbco/cm3230/steamtables.pdf   
      
   Gotta go help the elderly neighbor with his air compressor, he has a flat.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca