Re: [Emc-users] Two side routing
These are long reach 2 flute, they do flex a bit. I suppose I could be losing steps, but it always finishes pretty well at zero, not .1 off. On Sat, Feb 11, 2012 at 11:06 PM, Jon Elson el...@pico-systems.com wrote: Erik Friesen wrote: I have been puzzling over how to deal with double sided routing of 1 pvc. Currently I am working on a 12 x 12 square area, with 10 work pieces arrayed out. Each part has a couple 1/8 zero holes that I use to line up when I flip the pvc. The problem lies in the fact that nothing really comes out when I flip the pvc. I am using G10l2P*R* to rotate the board depending on a two point zero. However, the points never are square with each other, to the tune of .100 off at 10 from zero. I have checked my machine squareness and I believe it is less than .010 on a 12 piece. All I can figure out is that the 1/8 endmill is wandering enough to cause this. Does anyone with experience doing this have some points to offer? Hmmm, very strange. I don't use 1/8 HSS endmills, only carbide. I know the HSS cutters can deflect, but no WAY can it deflect even .050 (half your error). Could the workpiece be slipping on the table? Could the head of the machine be swinging on the round ram (if it is built like that?) Why not cut one side and then go back and re-check the initial coordinate setup at the corner? That will detect part slippage. And, of course, if this is a stepper machine, check for loss of steps after a long program. Jon -- 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 -- Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Two side routing
One thing that could be a factor I suppose.. I am using the probotix 40v system, it uses a sla7078mr stepper driver. There is no shielding on the cables to the motor, and whenever I am routing plastic, if I run the vacuum too close, static discharge does something somewhere, and the drivers, or something fritzes until I cycle the power. If indeed it is missing steps, I find it hard to accept that it is from overpowering the system. 40ipm in plastic with a .125 bit at .2 depth per pass isn't much. On Mon, Feb 13, 2012 at 7:24 AM, Erik Friesen e...@aercon.net wrote: These are long reach 2 flute, they do flex a bit. I suppose I could be losing steps, but it always finishes pretty well at zero, not .1 off. On Sat, Feb 11, 2012 at 11:06 PM, Jon Elson el...@pico-systems.comwrote: Erik Friesen wrote: I have been puzzling over how to deal with double sided routing of 1 pvc. Currently I am working on a 12 x 12 square area, with 10 work pieces arrayed out. Each part has a couple 1/8 zero holes that I use to line up when I flip the pvc. The problem lies in the fact that nothing really comes out when I flip the pvc. I am using G10l2P*R* to rotate the board depending on a two point zero. However, the points never are square with each other, to the tune of .100 off at 10 from zero. I have checked my machine squareness and I believe it is less than .010 on a 12 piece. All I can figure out is that the 1/8 endmill is wandering enough to cause this. Does anyone with experience doing this have some points to offer? Hmmm, very strange. I don't use 1/8 HSS endmills, only carbide. I know the HSS cutters can deflect, but no WAY can it deflect even .050 (half your error). Could the workpiece be slipping on the table? Could the head of the machine be swinging on the round ram (if it is built like that?) Why not cut one side and then go back and re-check the initial coordinate setup at the corner? That will detect part slippage. And, of course, if this is a stepper machine, check for loss of steps after a long program. Jon -- 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 -- Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Two side routing
Erik Friesen wrote: I have been puzzling over how to deal with double sided routing of 1 pvc. Currently I am working on a 12 x 12 square area, with 10 work pieces arrayed out. Each part has a couple 1/8 zero holes that I use to line up when I flip the pvc. The problem lies in the fact that nothing really comes out when I flip the pvc. I am using G10l2P*R* to rotate the board depending on a two point zero. However, the points never are square with each other, to the tune of .100 off at 10 from zero. I have checked my machine squareness and I believe it is less than .010 on a 12 piece. All I can figure out is that the 1/8 endmill is wandering enough to cause this. Does anyone with experience doing this have some points to offer? Hmmm, very strange. I don't use 1/8 HSS endmills, only carbide. I know the HSS cutters can deflect, but no WAY can it deflect even .050 (half your error). Could the workpiece be slipping on the table? Could the head of the machine be swinging on the round ram (if it is built like that?) Why not cut one side and then go back and re-check the initial coordinate setup at the corner? That will detect part slippage. And, of course, if this is a stepper machine, check for loss of steps after a long program. Jon -- 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
