Wikihouse Build - Calibration Test - Second Attempt

After building the Wikihouse Calibration Test, we learned that we were missing a part. There is a C-Shaped peg that locks two of the beams together.

Once we assembled the test parts, we tried to use a different kind of peg that didn’t fit correctly. Going back to SketchUp, we started deleting objects until the part we needed was exposed. We then reviewed the SVG we generated from the Wikihouse SketchUp plugin. It is also missing the piece. The cut files on Wikihouse.cc are also missing the piece.

After combing through the Wikihouse newsgroups, we finally found the issue. The Wikihouse plugin has some protections to skip exporting small objects or those that don’t have faces that match and are aligned. Unfortunately, it does not warn you that it is omitting objects.

We ended up going into the plugin wikihouse.rb and changed:

1412: if area1 < 0

Re-running the Wikihouse plugin, the part is correctly exported in the SVG.

[caption id=”attachment_679” align=”alignnone” width=”300”][]1 Missing piece is highlighted in green[/caption]

We then convert the SVG to DXF in Adobe Illustrator. VCarve Pro is used to import the DXF and create all the part toolpaths.

[caption id=”attachment_677” align=”alignnone” width=”300”][]2 Corrected toolpath file from VCarve Pro[/caption]