![]() I want to emphasize that staining them before is really important. All layers were stained individually BEFORE engraving with the cutter. The physical map is comprised of five layers of plywood glued together with ordinary woodglue and framed with 1"x1" cedar boards. I would recommend finding data from another source next time the City of Vancouver seems to publish better quality data in their open data catalogue. I don't know if there is a great automated way of doing this - it was the most time consuming part of the project. I spent a lot of time tidying the vectors in Inkscape to have long continuous lines. Most roads were actually comprised of very small vectors that coincided with each other, this made for really slow laser cutting and a poor finish. I found that the quality of data that Open Street Maps give you is pretty poor. I opted to mapping out only the arterial roads of Vancouver. ![]() I wanted to make sure that the land components of the map had a similar amount of complexity. '"VALDCO" % 50 IS 0 - Select all contours have a depth which is a multiple of 50 "VALDCO" IS 50 - Select contours at 50m (substitute for 100, 150 etc) This can be done in qgis using select by expression. The remaining contours would be used to engrave the plywood. This would provide the vectors to cut the plywood. This was too fine-grained for me - I would be laser cutting a lot more than the half sheet of plywood I had! Therefore I separated the contours that lay on 50m, 100m and 150m into their own layer. To create the underwater contours, I used the bathymetric layer that provides contours at 10m intervals. Within this program, we have the ability to combine the geographical data into a single image and export it to. To work with this data, I imported it using qgis. The bathymetric data was obtained from Fisheries and Oceans Canada and the city data from Open Street Map. This particular map was created using a combination of data from multiple sources. This will eventually be fed into the laser cutter and used to slice the plywood into the shapes we need. The first step is to obtain data to generate vectors representing the geography of the area we are interested in. The project was to create a map of Vancouver which emphasizes the depth of the ocean off the coast of the city.īefore we begin, I want to shout out to the Vancouver Hackspace without this amazing organization, none of this would be possible. I tried and failed a few times but eventually I finished it and am fairly pleased with the results. The purpose of this instructable is to document one such project that I recently finished where I went into it without having many of the skills to do it. It can be frustrating, but I like to think of this as part of the fun. You might get half way through only to realize that you messed up at step 2 and need to undo all your work and start again. Yes, there will be problems along the way. I find that the best way to learn something new is to just pick a project and try to figure out how to get it done.
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