> >> >>> I see that a commercial "Z axis preset gauge" is A$275 > down here, > >> >>> so a DIY alternative is attractive. (And it's advertised with > >> >>> "LED lamp", but no mention of an electrical output socket, so > >> >>> maybe no use, anyway.) > >> >> > >> >> I have one of those > >> >> > (https://www.machineryhouse.com.au/Products?stockCode=M691) - it > >> >> has a spring loaded plate, an LED and a 3v button cell > battery. > >> >> Complete the circuit and the LED lights. I removed the button, > >> >> drilled a hole in the side, and added a cable to make > it a touch > >> >> off probe (initially I used > >> > >> it > >> > >> >> with my manual mill and DRO for touch off - exactly > 50mm high). > >> >> The top of the plate is all scuffed up from raming a > tool into it > >> >> - twice while developing touch off software, and once > by jogging > >> >> into it a bit too fast. I need to have it reground. > >> > > >> >Wau $275 for 3 switches one batery and LED?
Not quite. The touch pad is basically a spring loaded ground piston, moving up and down a cylinder (base). It has magnets in the base and is set to 50mm +-0.005mm. I use it as a relative touch point, and to set the tool to be exactly 50mm above the vice. I'm not claiming it is good value, but it is a bit more than just "3 switches one batery and LED". I don't think I have the skill to make something that precise. (I know I don't have the skill, or tools, to repair it). ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
