Hi Kirk > I want a 3" encoder to go on the end of a ballscrew like this one: > http://www.wallacecompany.com/machine_shop/bridgeport/00047-1a.jpg
I recently replaced a worn-out encoder disk with about 4" diameter and most likely more than 1000 lines in a Canon IPF750 large format printer. I guess you could get one of these as a replacement part. This disk had an index mark to be read by a second sensor. For any DIY solutions, please keep in mind that you don't only need the resolution to create the fine details required, but also a very high absolute accuracy. And you need to find a way to centre the encoder on a mount. If it's not centred properly you will get linearity errors in the movement you want to control. On the plotter this problem is solved in software. After replacing the encoder a calibration routine prints thin lines and the plotter scans back these lines and obviously calculates the date need to linearise the encoder readout in software. See you Flo ------------------------------------------------------------------------------ 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
