![]() Draw a short segment in the positive y direction.The basic idea for (let's say x acceleration) is: The generated g-code will issue M501 at the beginning and at the end, to minimize the chance that modifiedĪcceleration settings will leave the machine in a bad state. Which case "jerk" (instantaneous speed change for low enough speed difference) should not be in effect. Assumes junction deviation is being used, in This generates the same toolpath but does not repeat the Z, Y, or F values any more than necessary. The g-code also contains comments showing the subdivision lengths before each line is drawn.Īs an additional option to see the possible influence on processing speed, a more efficient mode can be enabled by checking "Save bandwidth". For each 1 mm increment in the Y direction, the subdivision length is increased linearly between the min and max. The "Dense segments min" is the smallest subdivision length that is tested, and the "Dense segments max" is the largest subdivision length. The Y Extent determines the Y size of the final drawn pattern, which is also the number of subdivision lengths to be tested. Multiple subdivision lengths are tested, each offset by 1 mm in the Y direction. The lines are drawn in the positive X direction, and the total length is determined by X Extent. To test parsing and communication speed, this generates line segments that are drawn using a large number of very short G1 segments end-to-end in the same direction. This means a Z displacement is reflected in segment length amplified by a factor of 20.įor Z-Test grid mode, as many as possible "X" shapes are fit, evenly spaced, within the specified X and Y extent. ![]() With a Z travel of 1 mm (from +0.5 to -0.5) the shallow descent and ascent is at a slope of about 1:10. The default value of 14 mm has a corner-to-corner diagonal length of about 20 mm, or corner-to-center length of about 10 mm. The Z Test Cross Size setting specifies the horizontal and vertical dimension of the "X" shape. Small differences in the height of the surface create longer or shorter pen marks, effectively amplifying surface height errors to be more easily visible. ![]() These work by drawing "X" shaped marks, where the pen descends (lowers Z) at a shallow angle as it approaches the center of the X, and then slowly rises (increasing Z) as it moves away from the center of the X. These modes, Z-Test four corners and Z-Test grid, are for checking whether the work surface is level and flat. Perimeter ruler draws four (pairs of) rulers around the perimeter within a rectangle whose dimensions are specified by X extent and Y extent. The "Y Extent" setting determines the length to be created. Y ruler draws a pair of adjacent rulers along the positive Y axis. The "X Extent" setting determines the length to be created. X ruler draws a pair of adjacent rulers along the positive X axis. The "perimeter ruler" can also be used to determine whether the machine is square by comparing the diagonals (although it is not a particularly efficient test pattern for just determining squareness). ![]() By drawing two rulers in opposite directions, backlash (or other similar effects) can be detected. These should be uncommon but the test pattern can help identify it or rule it out. ![]() These are potentially useful for identifying errors in steps per mm, not only for uniform spacing error, but also for nonuniform errors in spacing. These rulers are drawn in pairs, with two rulers drawn next to each other, but drawn in opposite directions. This mode draws many short (~10 mm) segments 1mm apart, with the end result resembling a ruler. ![]()
0 Comments
Leave a Reply. |