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« on: June 01, 2009, 05:31:57 PM »
I needed to drill some holes in a part after machining a form on to it. I just wanted to centre drill the hole positions to pick them up for drilling later on. Being lazy instead of working out how to use the tool table I just did two separate programs, one for the machining and one for the centre drilling. It's a manual tool change, so no advantage in having it all in one program anyway. I ran the machining, then when the program finished I changed the tool, reset the Z to suit the new tool, loaded the next program and ran the centre drilling program. But the centre drill was out of position by about 1mm in X. I've obviously missed a crucial step in the way I did this -can anyone tell me what that was? I did notice that the original form was cut with tool 0, and the centre drill was tool 1 (they were programmed from one cam set up and it just incremented the tool number automatically), would this have made any difference. I have had accuracy issues in the past, but I'm happy the machine is accurate now, as the form was cut in over 60 passes all of which lined up perfectly -I just centre drilled in the wrong place. Obviously lost position somehow when changing tool and re-setting the Z.
Regards
Kevin