On Tuesday 12 March 2013 01:07:40 Cathrine Hribar did opine: > On Sat, 9 Mar 2013 21:15:16 -0500 > > Gene Heskett <[email protected]> wrote: > > On Saturday 09 March 2013 20:57:28 Cathrine Hribar did opine: > >> Hi Gene: > >> > >> Tried to send u an e-mail but they said it was to big!!! > >> > >> Don't know what that means, anyway to carry on I need a larger Z axis > >> stepper and will look on ebay. > >> > >> tnx Bill > > > > No clue as to why it would say that Bill. I have had folks send me > > emails of almost 250 megs, an .iso I had requested. AFAIK, there is > > no size limit for qmail to handle, which is what we use for a mail > > server at wdtv.com. > > Hi Gene: > > Reviewed the size of my pic and it was large. Sure hope this works. > > Have tried to cut it down and we shall see if it will fly this time. > > If u have any suggestions as to source for a 3 stack 250 oz or 450 oz > let me know. I find the single stack on ebay. > > I need the kids to come over and show the old man how to do this web > thing. > > Anyway the new Z axis with a ball screw, shown in the photo, will be > driven by servo. The spindle motor is 2.5HP 120v. DC with pwm drive. > > Bill
It came through ok this time Bill, but wth is a .pct? Obviously some sort of a winders pix format I'd guess, and this install of 10.04-4 LTS linux hasn't a clue what to open it with. What little wine I have installed, enough to try & run sketchup but poorly with some functions missing completely, isn't enough, file not found after thrashing the drives for 30 seconds. I'll save it & see if LibreOffice can sort it. Yes, LO Draw can open it, but I get 6 teeny pix I would not call thumbnails, more like little fingernails. I blew it up (275%) to where the pix were about 2" square, but by then the images were fuzzy. The only comment I'd make is the r8 spindle seems to be supported by a very small cross section cast strut that would look to be way too flexible sideways to support a 2.5 HP DC motor. Since what made it through the server was 200k once base64's for transmission, I'd suggest going back to the original camera files, load them in something like gimp, save as jpeg's, clicking on the preview window check box, which will tell you the output files size as you adjust the jpeg compression ratio, and adjust to about 170k because the base64 will expand it some, and post then one .jpg per posting. If that damages the image too much, put them up on pastebin with a 3 day expire & post the links. As far as the triple stack 425's go, google for xylotex. His prices are tolerable. For drivers, I'm plumb pleased with the 2M542's I bought on fleabay for a tad over $50/copy. Max psu voltage 50, max current to motor 4.2 amps, programmable microstepping down to 16 or more. You may have to build your own linear psu, I did a 39 volter for the lathe, used a 28 volt switcher in the mill, so its top speed is slower. The xylotex driver works, but lets the smoke out too easily, I've blown 3 of them. I have not had a problem with the 2M542's yet. Don't run the 2M542 much below 28 volts, the heat goes up as the supply goes down, not recommended below 24 volts. I have all of mine in 1/8 to 3/16 alu walled boxes, with internal fans to make sure the box gets warm, and the 28 volt kit, with 4 of them in there also has a muffin fan on the outside which has been adequate to keep the box surface below 110F on a 98F day. 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> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> JOHN PAUL ELECTED POPE!! (George and Ringo miffed.) I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
