reference

• http://tavmjong.free.fr/INKSCAPE/MANUAL/html/
• https://inkscape.paix.jp/sitemap/

decision make for 0.01mm grid

• SVG definition : 1 px = 1/96 inch ( i.e. 1 px = 25.4 mm / 96 ≒ 0.2645 mm )
• inkscape internal xml precision : 1/1000 px (i.e. 0.0002646 mm )
• but lasercut usually ignore 0.01 mm
• I decided to use 0.01mm grid for my work based on my output card result
• actually, inkscape cannot zoom in after this level

the version I use

important initial settings

• better to change for snapping style for lasercut data ( i.e. bounding box ) and new document keeps the same settings

• unexpected then expected

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troubleshooting note ( The newer , the upper )

issue 4

problem : scale was different from original pdf file dimension (adobe 72dpi vs w3c 96dpi , aka 75 : 100 )

Solution : added the 50mmx50mm square then check if the size has no difference when opening the .pdf file

issue 3

problem : how to prevent sketchup pdf has double lines

Solution : use select same fill by selecting a no fill object. Then move and use the lines that has no duplicates.

by the way, ctrl+K helps to unify the line style.

issue 2

problem : how to merge the same position nodes?

Solution : removeDuplicateNodes.py remove-duplicate-nodes/

• note : I am making the simpler version here
  • 
• first , ctrl+K to merge as single path, then extension remove duplicated nodes , thick line preview might be good improvement idea because visual helps the change

Issue 1

Problem : How to remove double line?

• An example : 2 rectangles touch like the following have 1 duplicated line

• and found how to check the double line by stroke color

Solution 1: use extensions > cutlings > remove duplicate lines inkscape-extension-removeduplicatelines

1. First off, convert object to path for the following operation ( ctrl+K to merge data could be safer )

1. use remove duplicate lines ( %AppData%\inkscape\extensions should have the extension)　with 0.1 ( 0.0 might not merge )

2. see data change

• Note 1: actually, duplicated lines looks thicker than single lines

• Note 2: too many lines seems to fails , so try smaller number of lines again

• The case with all single lines

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