XPost: sci.space.policy, sci.physics, sci.electronics.design   
      
   In sci.physics David Mitchell  wrote:   
   > jimp@specsol.spam.sux.com wrote:   
   >> In sci.physics David Mitchell  wrote:   
      
      
      
   >>> Not really - for example, if we're not at the limits of layer hardening   
   time,   
   >>> then we can use multiple print heads, multiplying the print rate.   
   >>> I thought that was apparent, apparently I needed to explain it.   
   >>   
   >> But we are at those limits as well as how fast we can lay down a layer   
   >> without slopping it around.   
   >>   
   >> Did you think the issue is how fast a stepper motor goes or how fast you   
   >> can squeeze something out of a nozzle?   
   >   
   > First of all, there are other technologies, the second of the new printers I   
   > posted uses one of them.   
      
   All the technologies squirt out something that has liquid properties and   
   then is hardened somehow, all of them.   
      
   There are no Star Trek replicators where a complete object forms out of   
   thin air.   
      
   > Second, even something as simple as adding more print heads would multiply   
   the   
   > printing speed, as I've explained twice now.   
      
   What part of we are already at the limit of deposition rate is it you can not   
   grasp?   
      
   >>>>> "The BAAM was used to manufacture the first (almost) fully 3D printed   
   car, the   
   >>>>> Strati, for together with Local Motors. With a deposition rate of up to   
   38 lbs   
   >>>>> of material per hour, it is possibly the fastest machine currently on   
   the market."   
   >>>>>   
   >>>>   
   >>>> The Strati is little more than a $30,000 golf cart and the finish is an   
   >>>> abomination.   
   >>>   
   >>> Not the point, remember the whole "mature technology" thing?   
   >>> If we can do that *now*, imagine what we'll be able to do in 30 years time.   
   >>   
   >> Yes, it is the whole point.   
   >>   
   >> They get speed by using thick layers as there is no other way to do it. This   
   >> results in a crap finish.   
   >   
   > Simply not true, see my points above.   
      
   Yes, it is true. Look at the pictures of the thing and read the companies   
   own press releases.   
      
      
   --   
   Jim Pennino   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)