On Wed, 2012-01-11 at 12:26 -0600, Jon Elson wrote: ... snip > I made a fixture plate with a 1" grid of threaded holes, and clamps that > have > a "claw" at the end. When set up properly, only the tip touches the work. > The idea is that if you clamp the PC board a bit in from the edge, the > pressure > of the clamp in from the edge tends to flatten the board. You can > always mill > the edge of the board later to the exact size needed, and that will be > aligned > with the trace milling. > > Jon
Another method that may apply, I have used wax or hot glue on a sacrificial block of wood, plastic or other. A grid could be milled into the sacrificial top so that the workpiece is more likely to register to the grid's top surface, then no Z compensation would be needed. I use a hot plate or hot air gun to set or remove the workpiece, then the appropriate solvent to clean the residue. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
