Digitizing method

Details Digitizing method Digitizing method

1993-07-22

1994-05-31

Smith, Jerry

Boots, shoes, and leggings

36447437, 318578, G06F 1546, G05B 1918

Patent

active

053175174

ABSTRACT:
Disclosed is a digitizing method of sensing an amount of displacement of each axis applied to a stylus by a tracer head, profiling a model surface while controlling the stylus in such a manner that the amount of displacement is made equal to a reference amount of displacement, sequentially fetching positional data by a predetermined method, and outputting NC data, wherein a difference between the amount of displacement and the reference amount of displacement is monitored, and the difference is added to the positional data and a specific positional data obtained when the difference exceeds a predetermined value is output. Although the amount of displacement of each axis is controlled to be equal to the reference amount of displacement when a gently inclined configuration is profiled, at the moment when a corner is reached, a phenomenon that the stylus is spaced apart from a model arises so that the difference between the amount of displacement and the reference amount of displacement is increased. This change is sensed and regarded to exhibit the corner, and thus the difference is added to the output point obtained by a usual digitizing and the positional data at a point is output.

REFERENCES:
patent: 4688179 (1987-08-01), Yamazaki
patent: 4702652 (1987-10-01), Rokksku et al.
patent: 4703239 (1987-10-01), Yamazaki
patent: 4719578 (1988-01-01), Okitomo et al.
patent: 4746251 (1988-05-01), Yoshikawa et al.
patent: 4851750 (1989-07-01), Yamazaki
patent: 4999555 (1991-03-01), Yamazaki et al.

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