Scaling by percentage
I am trying to scale my patterns by percentage. The patterns being sent to me from my patternmaker are not coming in at the right size. I requested that they send the patterns with a 10" x 10" box included with them, but the box is coming in at 25.4" x 25.4". I don't think this is a coincidence considering that 1 in = 2.54 cm. I want to scale all my patterns at the same ratio of 1:2.54 (39.4% of original size).
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Some background .... When you import you get the option to apply your scale > so in that setting you need to choose the correct option from the drop down list > if your original was in inches you should choose inches, if the file was created in cm then import under cm, etc ... I would not recommend scaling by factor until you have tried the correct workflow and made sure the datafile originator has included the right units on export from their system.
Often when CAD comes from another system it is dependent on that systems treatment of unit space > this can be set such that all drafting is in metric or imperial units, but it can also often mean 'unit-less' drafting space can be applied. Often many CAD drafting operators don't even know what mode they are exporting under and that can cause problems downstream. So it can often be an error by the operator whom has not applied the correct 'world' units to the CAD drafting datafile they export from the prior system. This can mean that they are working in inches but export as unit-less space and don't apply the imperial units option to the CAD global scale within the software which then does not convert the file correctly with that (conversion) instruction in the exported datafile. And it is this (imperial inches/or metric cm) instruction within the previous datafile format that CLO3D relies upon on import to indicate what unit space the CAD drafting was created in.
You can elect to simply use CLO3D import > Autoscale but if that tosses up this scale error after import that most likely means the imperial 'unit' space was missing from the original datafile and you have a unitless datafile. This can be overcome by manually opting for the scale percentage and applying that conversion factor. However best to go back to the datafile originator and make sure they are exporting the CAD files correctly such that the world units (imperial or metric) is applied to the datafile and not just set to an agnostic unit-less scale which may be the case by the previous operator. Often it's hard to communicate this need to CAD operators as they simply work within one system and it 'works' for them (as long as they do all their work at that scale within that system) and they are unaware of the 'unit' space requirement when exchanging files externally with different systems ... until they try and integrate with another software for datafile exchange. Which put's you in the awkward position of having to sometimes explain this to a CAD operator.
Some links to support the 'unitless' datafile xchange chasm that some CAD drafting operators fall into > link 1
Hope that helps.
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If you want to scale the patterns, you can take ottoline's methods for reference. When importing DXF pattern, you can set the scale unit and change its %.
If you have already added the pattern to CLO, you can use Transform Pattern > Adjust the pattern size by left click, meanwhile, press the right click. > Then you can set the Transform Percentage in the pop-up.
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