On Wednesday 13 March 2013 02:43:45 Cathrine Hribar did opine: > > 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. > > The file format is Adobe photoshop. Saved as a web optimized picture > file... According to photoshop, that is... I thought it would be > better but as u said linux can't handle it, so here is the picture in > good old j-peg. > > > > > > < 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. > > If it is it gets a cast bottom bolted to all 4 walls. > > The R8 casting was, at one time, the input drive shaft on a 4 wheel off > road. The material is, Monel, I believe.As it is vry heavy and machines > like it. I bought that differential from a scrap yard here. I have > found several different items there of the same stuff. That > differential was the output from a 30HP drive train. I cut it out with > my body grinder and made a shaft so I could turn it to mount it in my > lathe and turned the end to match the alluminum casting I made for the > Z axis head. Of course, both ends of the shaft had tapered roller > bearings. I was able to use one bearing but replaced the other end with > another tapered bearing with a larger ID. Then made the spindle to > match. The original shaft was 1.125 with a 2.5 inch spiral bevel gear > on the end. > > If it proves to be to light I will cast a heaver housing of monel as I > have bought several blank castings from that yard made of the same > material. We have, in this area several machine shops that work for > uncle sam. I guess that these blanks are drops left over from > production runs. > > 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 > > I am using a analog power supply I built when I changed over to the > bipolar controller and motors. It is 32 volts @ 6 amps. I am also > running a cooling fan in that box, although, mine don't look as good as > yours. I put the new xformer on the outside of the original dye cast > box. You can see the assembly in the photo of the machine. > > I did a search for xylotex. He is offering a smaller motor for $50 + S/H > so maybe I'll just do that for now as the spects match my controller.
I found a couple 425s earlier this evening at $52, but neglected to bookmark them. > I need to get a much better understanding of motors and controllers etc. > > Anyway take a look, let me know what u think. > > Bill That is still an all in one output containing the thumbnails of 6 pictures, and falls apart when blown up. There are 6 pictures there, and whats needed is each one sent individually, or put up at a pastebin in the straight out of the camera format. 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> "One Architecture, One OS" also translates as "One Egg, One Basket". I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
