We don’t need to cut through the PET plastic at the dashed lines, we need to make it there less rigid so that we could easily fold it to shape into a pallet. For our convenience, we make a drawing before creating the G-code.
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We’ll make it out of PET plastic, 0,3 mm thick. The final thing we need to do is making of a bottom layer to be placed under the ink pad to prevent soaking of the ink into the plywood of the box.
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Link to the G-code (download ZIP stamp_pad):īefore we start cutting we spread the smoothed tissue on the worktable and fasten it with clips. With this in mind, we cut out a rectangle 62mm by 22 mm. As a result the size of the ink pad will be by 2-3mm smaller than it should be. The thin fibers of the fabric will shrink in the process of laser cutting. Out of it, we’ll cut out a rectangle a little bit smaller than the size of the box inner area: 59x19mm. We use cotton of flannel type, 1 mm thick. Now we fasten the workpieces to the worktable and begin cutting.įor an ink pad, we need a highly absorbent material. Links to G-codes for a machine with 2 axes (download ZIP stamp box 2 axis): Links to G-codes for a machine with 3 axes (Download zip > stamp box): Link to the article about G-code creation
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Then after every two passes, the laser will go down by 1 mm. At the beginning of cutting, we’ll lift the laser by 3 mm so that the point of beam application is on the upper side of the plywood. We are fortunate that our machine has 3 axes. If we fail to cut such sections through we’ll have to use a knife to cut them through. It might have some sections with a harder texture than the rest of the material. 4-6 passes are needed to cut plywood 3mm thick. Then let it dry up and cut the stamp out with scissors.Ĩ passes are an ideal quantity. To get rid of the black powdery coating we wash the seal with soap and water and clean hard-to-reach places with a toothbrush. While working we remember to comply with safety provisions: wear safety goggles and ensure room ventilation. Link to the ready G-code (download ZIP stamp-nc):Īs our worktable is movable, we fasten our rubber seal basis to it with clips and run the G-code. This line doesn’t affect the machine operation in general. This is why we add this line with transition to the initial coordinates in all axes. In this way we can visualize and correct any errors and faults in the program. The program GrblControl controlling our machine enables to visually display our G-code as well as its virtual performance without turning-on the machine. This line at the beginning of the work positions the laser at the original coordinates. At the beginning of the G-code (after “G90” and “G21”) we add “G0 X0 Y0 Z0”. That is why using automatic text replacement we change the “G1” command for ”M03 G1”, and “G0” for “M05 G0”.Ĥ. Some machines and their management programs automatically turn on/off the laser when they get these commands. The body of the created G-code consists of the following alternate commands “G1” and ”G0”, where “G1”is the laser movement in an operation mode (when the laser is on), “G0” is the idle movement when the laser is off at the max. As it is in the range of 0-1000 in our CNC machine, where 1000=100%, we set it to 75%.
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At the beginning of the code we have “F500”. Now we need to correct the created G-code using Notepad.