it would be impressive to set up a 6m radius cut on a lathe tho. it's the stuff of blogging.
--- On Thu, 3/8/12, Peter Blodow <p.blo...@dreki.de> wrote: > From: Peter Blodow <p.blo...@dreki.de> > Subject: Re: [Emc-users] State of Wizards/Druids for simple machining. > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Date: Thursday, March 8, 2012, 2:49 PM > Dave, you have apoint there. > I'm speaking now strictly as an amateur CNC user. Of course, > making one > or a couple of parts is much quicker manually than using > CNC. But there > are lots of parts you couldn't possibly make by hand, and > this is where > CNC comes in on the hobbyist level. Some examples: > > Imagine fabricating spheric hollow surfaces with a radius > of, say, about > 6 meters, in a 16 inch cast iron blank, with a precision in > radius of > about 1 mm. I needed these for mirror and lens grinding. How > would you > turn something like this on a purely manual lathe? Install a > radius bar > across the house? > > Another example: milling spur or other gears. I tried to > make a single > odd gear for my change gear set on its own machine. I have a > wonderful > little high precision dividing head. I had to turn the crank > wheel some > odd numbers of some degrees and umpteen minutes after each > cut, and > after the tenth I made a minute error so the blank was > lost. Then I > decided to set up a CNC system first, and soon made drawers > full of > perfect gears in short time. I repeated this on the large > mill to make > change gears in modulus 2 for my large lathe too. There > would have been > no way to do this, especially not in reasonable time, > without digital > control. > > A third example: I was making printed circuit boards for the > stepper > units of the 3 axis minimill I am building. I made the > boards with > eagle, etched them and had them drilled within about a > minute. 3 times > 300 holes would take a long time positioning and drilling by > hand.... > > You don't have to be a professional to profitably use a CNC > system, and > I'm glad there is something like LinuxCNC or EMC2, as you > like. > Peter Blodow > > > dave schrieb: > > For a one-off that is orthogonal a manual machine may > be the fastest. > > However, as soon as one needs another part, or a taper, > or a really > > good finish then quick programs still beat manual. > > > > May be this just illustrates my lack of skill, but if > so, so be it. ;-) > > > > > > Dave > > > > > ------------------------------------------------------------------------------ > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
