As a measurement reference, a steel grating with a two-coordinate high-precision phase grating, the readhead portion is also not in contact with the steel grating during measurement. In the mounted state, the readhead is connected to the steel grating by the mounting trolley. When measuring, simply place the ruler parallel to the direction of motion on the bed, and let the readhead be magnetically attracted to the moving parts of the machine (such as the main shaft) and evacuate the trolley. When the accuracy test is used for the circumferential test, the numerical control system controls the machine axis to perform circular interpolation in the machining plane. When using EFG for circumferential and free curve testing, the programming of the required machine NC program is simple. The analysis software DG automatically generates the corresponding NC program after inquiring all the parameters related to the test. The program is transferred directly to the machine system via the data interface of the control system. The analysis results of the circumferential test can be used to estimate the source of the machine tool error, such as "the orthogonal error between the machine axis and the axis; the reverse pulse during the quadrant transition; the backlash; the CNC system compensation data is not applicable; the machine tool components are not Uniform thermal expansion; yaw error of machine axes; effects of different feed rates; effects of different feed accelerations. The free-form curve test, as its name suggests, allows testing of any motion of the machine in a plane. For example, an over-angle test can be used to measure an important indicator of the dynamic performance of the control loop: the overshoot characteristic and the resulting rounding error due to overcutting. Step Response Test The step response test is used to measure the actual minimum motion step of the feed system. This is also an indicator of the effect of static friction and the ability of the feed system to remain in one position. This test is often used for high-precision machine tool testing. Both EFG and IG can be used as step response tests. The DG analysis software allows the test results to be displaced! Time or speed time form to express. The static dynamic accuracy test using HEIDENHAIN double-coordinate grating is simple, accurate and reliable, and it also allows fast and automatic archiving. Compared with the machine analysis method that only analyzes the accuracy of the workpiece being processed, the method described in this paper is more effective, because only in this way can the factors of the machining process be separated from the factors of the machine itself, and it is convenient to analyze all aspects of the machine tool more effectively. (Finish) Yoga resistance band, airavat resistance band, beginner resistance band workout, resistance band arm workout women, resistance band workouts for butt, 30 minute resistance band workout, resistance band tricep extension, tricep resistance band workout, how to use a resistance band, back workout with resistance band, Stretching band, polyester-cotton resistance band, TPE resistance band, latex resistance band Yoga resistance band, resistance band arm workout women, resistance band workouts for butt, resistance band tricep extension, tricep resistance band workout, Stretching band, polyester-cotton resistance band, TPE resistance band, latex resistance band Huizhou City Melors Plastic Products Co., Limited , https://www.thefoammaster.com