On Jun 4, 2012, at 2:47 PM, Joachim Franek wrote: >> do you think it makes sense if we all collaboratively work towards a common >> goal? > Yes.
Excellent. >> It just seems that several people are going in several directions, and we >> might all benefit from a shared strategy. > It is time to tell, what is essential and what desirable. > > For me essential: > - temp. control of head(s) etc. > from my experiance 12bit a/d is required, (I wil test 10bit with avr board) > because of thermal long time constant 8 bit of pwm output may be ok > > Desirable: > - common lcnc api: gcode and hal parts Personally what I would like to see is: • Compatible with existing popular slicing software, filtering with a script is acceptable (but of course not ideal), for instance using the python script at: http://www.thingiverse.com/thing:5233 • Compatible with "off the shelf" components such as MakerBots newest extruder the MK7: http://store.makerbot.com/stepstruder-mk7-complete.html • And their controller card. If we could eliminate the card with standard CNC hardware, that works too. But this card looks like it essentially just controls the power of the extruder heater. http://store.makerbot.com/extruder-controller-v3-6.html Note the CNC conversion at: http://www.thingiverse.com/thing:5233 uses the older MK5 extruder. As I understand it, the MK5 extruder just uses a DC motor which that CNC conversion commanded its speed (0-255) and on/off. The MK7 extruder uses a stepper motor. I assume it should be no problem (maybe even less of a problem) using a stepper instead of the DC motor with LinuxCNC. I am not sure how the slicing software handles the extruder stepper motor, but I would guess it is with G Code. • Multiple extruder support would be great too, either for increased print speeds and/or different material. That of course can come later. 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
