John Kasunich wrote: > [EMAIL PROTECTED] wrote: >> Hi >> Small shop here want to mechanize machining of bicycle wheel – ream. I >> want to find better and less expensive way to build CNC type machine with >> EMC2. >> What is the best way to assemble frame of that machine? >> Are there some spindle with chuck as a modular unit to I cam mount it on >> the table? >> Any ideas? >> Any way to find part of large lathe, or grinder that spin large wheel and >> it can spin instead bicycle ream? >> Thank you >> Aram > > The traditional way to machine short, large diameter parts, is with a > T-Lathe. That has the bed at right angles to the spindle, a large > diameter chuck or faceplate, and no tailstock. For example:
I just realized that a vertical spindle lathe would also work, and might be easier to load and unload, since gravity would hold the rims in place while you center them up. The pictures below are much larger and heavier than would be needed for bicycle wheels, but they should convey the proper idea. http://www.shzhoule.cn/english/admin/upload/2007830145232661517.jpg http://img.alibaba.com/photo/50995654/Vertical_Lathe.jpg As with the T lathe, if you don't need to machine the center, the X axis can be much shorter - you probably wouldn't need the "bridge" shown in the photos. Regards, John Kasunich ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
