On Jul 25, 2012, at 1:15 AM, a...@conceptmachinery.com wrote: > Those all was close but not what i ask for. > I am looking for real - real- rapid prototype. What this means ? > 1. rapid prototype should have 2 liquid materials-- main material and > support material.
Hi Aram, Actually, the MakerBot Replicator has two print heads as an option. And others have added a second head to RepRap, Ultimaker, etc. It is then possible to print the part with ABS and the support with PLA. PLA can then be dissolved while leaving the ABS intact: http://www.makerbot.com/blog/2010/10/19/pla-proven-as-a-dissolveable-support-material/ Or a slower method is just using hot water: http://www.bitsfrombytes.com/forum/post/safe-support-material-removal-really-works An other option is to print the supports with water soluble PVA: http://wiki.makerbot.com/pva > 2. rapid prototype must have CNC programmable head - like with EMC2 AC > servomotor that open close needle valve that controls amount of plastic > that introduced with head. The MakerBot MK7 head does just that: http://store.makerbot.com/stepstruder-mk7-complete.html > 3. rapid prototype must have accuracy around on 0.005" to have real use > to make real commercial model prototype. CNC programmable head must be > able to change accuracy from 0.001"-0.01" > by changing M code in CNC program. I personally don't see this as a major hurdle. Currently print resolution can be changed by manually changing out the print nozzle. There is no reason why an adjustable print aperture or automated tool changer could not be developed though. Cheers, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
