On Thu, 7 Nov 2013, Viesturs L?cis wrote: > 2013/11/7 Russell Brown <russ...@lls.lls.com> > >> Quoth Ralph Stirling..... >>> Are you planning on using crosshairs and "eyeballing" to determine >>> your cutter length/diameter, >> >> Ummm... I was planning on using it by eye, with Camview for Linuxcnc >> (http://psha.org.ru/b/camview-emc.html - which generates a tab in Axis >> with the camera image + overlays) to edge find (instead of removing >> current tool, change collett in holder, insert edge finder, find edges, >> remove edge finder, reinstall original collett and tool; not a hugely >> onerous task but still a bit of a PITA if a cheapy webcam can do the >> job). >> >> Camview already overlays cross hairs and circles or lines so if the head >> mounted camera can produce a usable image of the workpiece when I've got >> a tool in the spindle..... 'all' I then have to tackle is mounting it >> in line with Z on the head. >> > > This approach works really well, I can see movements of less than 0,1 mm > increments and the camera is at least 200 mm from material. And having the > camera permanently mounted really makes it fast and easy to use it. > The only problem is that it does not work through 7 m long usb cable - that > is how long it takes through all the cable chains. >
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