Kaindl BSG 60, Инструкция по эксплуатации

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15
Grinding of stepped drills with 2 cutting edges 118º
First step. Adjust prism support to scale mark
118 °. The fixation and alignment is same as
described in page 10 (right hand drills)
Second step. Adjustment as first step, and
sharpen over the right edge at the straight angle of
the grinding wheel. Clearance angle as per your
request.
Grinding of stepped drills 90º
First step. The grinding is same as for right hand drills.
Second step. For this you have to “hollow out” the right side of the grinding from the outside
to the middle, in order the angle of edge of wheel is less than 90 °. Then adjust the second
step. Adjust prism support to 118 º, clearance angle to 0. Fix star know screw in boring A
By means of motor feed grind from the outside to the inside and move back when finished.
Reverse the prism and repeat the grinding procedure.
Grinding of spot facers
Hollow out the grinding wheel as described for 90 ° stepped drills.
Let the spot facer project around 35 mm outside the prism and align one cutting edge parallel
to the straight marking line. Use magnetic depth stop and cutting rost (Page 9 pic. 4 and 7).
Adjust cleance angle to 0 and lock star knob screw in boring A. Grind from the inside to the
outside by use of the motor feed. Move back and align the next cutting edge. Do not change
prism feed position.
For back grinding fix the star knob screw in hole B and repeat the
grinding procedure as before.