On Tuesday 22 September 2015 09:36:24 Mark Wendt wrote: > On Tue, Sep 22, 2015 at 9:31 AM, Gene Heskett <ghesk...@wdtv.com> wrote: > > On Tuesday 22 September 2015 05:46:42 Mark Wendt wrote: > >> On Tue, Sep 22, 2015 at 3:45 AM, Gregg Eshelman > >> <g_ala...@yahoo.com> > > > > wrote: > >> > The trick is to achieve transparency of operation so that GCODE > >> > and commands for start, stop, E-stop etc sent to the LCNC server > >> > and feedback returned to the client operates seamlessly and > >> > without interference with the micro-system actually operating the > >> > CNC machine. > >> > >> That. > >> > >> That's the biggest concern I have for a heavy machine, spinning > >> sharp objects, and whoops! The wireless went down. Or the wired > >> switch decided to take a dump. > >> > >> Those reasons are why I don't use wireless or bluetooth keyboards, > >> mice and pendants. A hard wire connect to a single computer > >> running the code to me is just the safest way of doing things. > >> Drip feed by DNC is okay, that's a horse of a different course. > >> > >> Mark > > > > And I haven't had a wireless mouse or keyboard that if the batteries > > were good, did anything but work. The keyboard in particular is > > extremely handy without the distance limiting cord, as I can pick it > > up off its normal resting place about 3 deet from the machine, carry > > it over and park it on the Y motor when I am setting up for the next > > operation. > > > > >From where I sit at the operating position Z is the only axis I can > > > see > > > > well enough when jogging. So I either need to get a camera, and > > camview and align setup and calibrated, or go over to the machine > > with the keyboard. As for batteries failing, I've not had them fail > > in anything but the key up position. Ever. > > > > Now, if I could just find a fitted cover for a logitech K360 > > keyboard to keep the swarf and coffee drippings out of it. I find > > that even with the square sided keys, swarf can jam it. > > > > YMMV of course. > > > > Cheers, Gene Heskett > > All it takes is a bit of interference in the band of radios waves > those devices use. I still prefer hardwired connections rather than > trusting radio waves on stuff like that. Or, as you mentioned, the > batteries. It only has to happen once. > > Mark
This also is true, but I am not in an industrial environment where such interference is at all common. Whats in the shop or garage is not of course semi-shielded by the alu siding on this house and would be 10+ db more susceptible. This is a relatively quiet, 50 yards from the city limits residential area, with more electronics here than exists anyplace but a fast food place in the whole town, a physical limit enforced by a huge to me hill that only small children could negotiate, very thick brush, but don't as its also multiflora rose and copperhead country. So here, that interference has not been a problem. I think that isolation from technology is without a doubt a good thing for me. I have no experience in a busy job shop with 5 or more machines in the same big room. In the shop in the back yard, the toy mill and the lathe are about 4 feet apart, but the lathe is the only wireless equipt machine. The operating position of the toy mill is actually above the right end of its table, so I can see it well while jogging with my right hand. No need for the radios. In the garage with the GO704, I do need to put up a sheet of lexan to deflect airborne swarf between the operating position and the machine as it would help keep swarf out of both the keyboard and my coffee cup. :) OTOH, the spindle motors max at 1 hp here, are the strongest motors involved. All could throw a key on startup plenty hard enough to hurt. Axis motors are more than strong enough to break or crush tools though. I sheared a 4 mm capscrew sunday by leaving something on the bellows I had added to better shield the Y ball screw from debris, so they are certainly capable of crushing a wayward finger. One of todays projects I think along with finding a fly cutter to level the front of that jig addition installed yesterday. And I need to make some narrow, say 5" wide, binder high pocket shelving additions to the "furniture" for holding gcode manuals and printouts of some of the files so I don't forget what it was I was doing. :) Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
