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I built a 45 upper cabinet and the cut list keeps making coming up with shorter rail measurement's then I built.. any Ideas

GLR Kitchen and Bath Design LLC

Posted on July 12, 2022

Rail measurement is 14 but coming in through OCL as 10 7/16?? 

Martin Mueller

Posted on July 13, 2022

Hi,

This may happen when the local axes are not aligned with the part. OpenCutList interprets the length of the bounding box on the red axis to figure out the length of the rail. Check if the blue bounding box is tight around the rail and that the axis are interpreted correctly. You can use the tab Axes to realign the local axes.

In the last tab of the Properties of Part, there should be a warning.

GLR Kitchen and Bath Design LLC

Posted on July 14, 2022

Thank you Martin! that was the problem. Another issue I have is when I build my drawer boxes the length, width and depth get mixed up on the part list. Will I need to set the axes for every box?   

Martin Mueller

Posted on July 14, 2022

OCL has two modes to detect the dimensions of a part (see also Options):
  1. When the Options -> General -> Automatic orientation of parts is enabled, it will use the dimensions of the blue bounding box around your component and interpret the length as being the largest dimension, the thickness as being the smallest dimension and the third dimension being the width. This works for most parts, but alas there are some exceptions. To fix the problem for a single part, simply edit the Part Properties and rearrange the dimensions so that they match the respective axis.
  2. When  Automatic orientation of parts is not enabled, OCL will use the dimension along the red axis as the length, the dimension along the green axis as the width and the dimension along the blue axis as the thickness. It is up to you to place the local axis from within SketchUp to match your intention.
I use the second option more often, because it suits me better. I draw my components and make sure the axis are aligned (to have a tight bounding box) but at first I don't really care if the dimensions match. Then in step 2, I review all parts by clicking on the magnifying glass to highlight them in the model. You will see a plain white arrow indicating the direction of the length (usually the grain direction in wood) on the front face of the component and a dotted arrow showing into the same direction. If the axis do not match my intention, then I right-click on the part and select the last menu Edit Axes Properties of Part, or from the Parts List. On the Axes tab, you can simply rearrange the dimensions, even change the location of the origin (has no effect on dimensions).

In the Axes tab, there is also an option to Disable mirrored part detection on this part. Suppose you have two instances of the same component, but one has been flipped along the length. This option will either consider them the same (when Disable is on) or consider them two separate parts. There is also a global option to do this (see Options).

In any case, we recommend to read the information that appears to the right of the part name in the Parts List.


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