However, each part is measuring larger than it should be. The first contour pass cuts a perfect part, no indents or extrusions, where the tabs should be. We have been doing some testing with these tabs and have further information as to what is causing the problem. If you have any clarification questions, or issues with the attached file, please let me know and I will respond as soon as I can. I've also attached a file if anyone has the interest and time in looking into why the first contour pass is producing a smooth result. The other shows the protrusion with the tab removed. Once shows the tab still on the part and the protrusion all the way up. I've attached 2 pictures to better show the problem. The problem likely occurs here too, you just can't see it because the tabbed area doesn't get cut. Bottom height is the bottom of the part and the top height is the top of the tab. This, in theory, should create a smooth, consistent contour, around the whole part cutting all the way down to the top of the tab.Ģ: We select the base contour again, excluding the tabs. We then select the bottom height to be the top of the tab and the top height to be the top of the part. I'll detail #1 more as this is where the problem lies:ġ: We create a contour selecting the base contour of the part, ensuring the contour runs consistently with the part and through the tabs, not around the tabs. Our process for programming part contours is as follows. 75" long, but above the tab (the remaining ~.32" has a protrusion of roughly 1/8" outwards. To further describe the problem: the tab cuts correctly, it is. The problem is that we are getting a protrusion or offset all the way up the piece, at each tab location, making it impossible to flush cut. The goal is to flush cut the tabs off the CNC table after the CNC is done running. The tabs vary in size but are generally about. The parts are all being cut from 12mm (.47") Baltic Birch. I've been programming quite a few files lately that all have tabs built into them.
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