Single point with multiple lines not possible to extrude

robin_jansen

Hi, I have a sketch with a lot of squares. Some lines are connected to the same point. Because of this, I can not extrude the sketch, even though it does show up as a solid area when I select it. The squares are from a QR code, so there are many more. Is it possible to extrude this?
Thanks.

glen_dewsbury

You have a nonmanifold condition at at some points with the Parasolid tool can't make. There needs to be a gap or overlap. Or you can make more than one extrude to select squares that work.

robin_jansen

I ended up making a lot of subsquares and extruded them separately. This resulted in a lot of parts which could not be merged as a boolean for the same reason. Luckily I could export them simultaneously by selecting them all. The 3D printing software imported them as one object.

For anyone else that is trying to make a QR code, this is how I would do it next time (haven't tried it yet!);
- Create a QR code with a service like qrcode-monkey.com
- Export it as SVG or PNG
- Open it in Photoshop
- Select the dark part of the QR code
- Via menu 'Selection' -> 'Contract' with 2 or more pixels
- Save as PNG or else
- Convert PNG to SVG
- Convert SVG to DXF
- Import to onshape