-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 6/3/2012 6:31 PM, Michael Haberler wrote: > > Am 03.06.2012 um 18:54 schrieb Kirk Wallace: > >> These printers are very clever and the products entertaining, but >> I have issues with how they fit in with the big picture. >> Plastic, over a the > > Kirk, > > I understand your point > > however, I'm much more concerned about this project basically > missing the boat on 3D printing altogether, while this space goes > off to reinvent a lot of the same - and with much creative energy > and funding behind it > > I'm not blaming anybody or proposing a particular cure - I'm just > reporting a gut feeling deriving from experience with the tides of > OSS projects
That's why as a new LinuxCNC user with a knee mill to retrofit, my first task will be getting my MendelMax 3D printer running via LinuxCNC with the PREEMPT_RT patch set. IMHO, it's important to the long-term future of LinuxCNC to be able to run with a modern kernel, and to be able to easily control a typical "RepRap" 3D printer. Side-Note: Generation of the step/dir signals is straight-forward, but modern RepRap firmware also does PID control of the extruder temperature via a thermister sensor. I am currently planning on using a simple 555 timer circuit to convert temperature (resistance) to frequency, and use the line-in on my motherboard (with something like Aubio) to detect the frequency and convert it to a HAL temperature signal that can be used to PWM control the heater. That provides up to two analog input signals with decent resolution essentially for free. If anyone has a better idea, or something that would just use the parallel port, I'd love to hear it! - -- Charles Steinkuehler char...@steinkuehler.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/L+8YACgkQLywbqEHdNFzBZQCfXBYKNK66hj3jTeDPBSbl2gjI FwAAn3tsKKT02GR/4NytQY5Y1oMQaATr =C7bX -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ 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
