On Saturday, February 18, 2012 01:24:27 PM andy pugh did opine: > On 18 February 2012 05:27, gene heskett <[email protected]> wrote: > > Ahh, yup, I guess so. I am going to get another of those back to > > school specials with the D525MW board in it, and another C1G > > interface & two more of those MM-542 drivers. Since those mobo's > > only have one very narrow PCI- E slot, and that particular box hasn't > > a back panel knockout that I recall seeing, what else will fit? > > I don't see any good reason to put the PC in a case. Just treat the > motherboard as another component in the system, like the stepper > drives and put it in the box. Which, if I had a box... This way, I need a shelf above, easy peasy, one already there loaded with tools ATM. I can hang the monitor upside down from the bottom of the shelf, and that leaves it up to my inventiveness given the available real estate, of where to put the keyboard, which for this machine will be one of the sealed, roll up rubber things (maybe, to help keep the swarf out of it) glued to a slanted panel hanging over it, and below the monitor. Otherwise if I can't get used to that keyboard, it feels like the biggest kluge ever, I have a stock of Big Lots conventional keyboards I can reach for.
> >> Jon and Pete make fairly cheap stuff that can liberate you from all > >> such timing considerations. > > > > URL's? > > http://www.pico-systems.com/motion.html > http://www.mesanet.com/ I looked, the anything board looks interesting, but this is a toy that is only worth a few bucks more than that board. If it had the horsepower to cut at what that board could command, a full mazak or Hardinge machining center that could spit out the part I have in mind at 1 a minute, sure. But for this toy, the $248 box & the parport breakout will get the job done at speeds faster than this machine can cut, by a very large margin. Soft steel, starting at an inch in diameter, can only be cut somewhere near the recommended chip size and surface speed after the diameter has been reduced to under 3/4" by lesser cuts. Truly hard steel, like some mine shafting I got from the recyclers, is a different horse entirely, needing 10x the torque I have. It needs 15x the spindle power, and 10x the rigidity in the toolpost & bed, both are sadly lacking. It might be able to do it if it had been geared down to about 1/3rd the speed, and had another 150 lbs of stabilizing iron in the bed & carriage. I note there seems to be some backlash play developing between the motor and spindle, so pending inspection, I am assuming the keyways in the headstock gears hubs are about reamed out. I'm also up to about 1/4 turn in the mills spindle, same reason. The only 'gear' failures I have had have been in the change gears, keyways in the hubs bored out to about a 3rd of a turn play. I just got a set of gears for the mill, and I wish I could have gotten a metal one just for the gear on the spindle itself, that has to be the weakest thing ever. If I ever get equipt to broach keyways some day, I may build a steel hub for the old gear. Heck, for a one off I could probably carve the keyway with a small file, just need to find a round tuit. ;-) I considered the J&W 3 speed belt drive conversion kit, and have my name on the waiting list at LMS, but that would take a mount reversal because of where my Z axis screw is now. Its also $150 & change, but would also give me an 8k rpm spindle for use like this. In the meantime, a gear kit from LMS just arrived today, so the problem can be sorta solved if & when its all rodded out. One does generally get what you pay for with this hobby stuff. :( If wishes were horses, beggars would ride for free is the phrase that comes to mind. ;-) In the meantime, it is the good womans birthday, 70mumble and we, along with 4 other neighbors, are about head for Appleby's for dinner to celebrate. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> Sears has everything. ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
