- a test [engraving template](https://gitlab.fabcloud.org/academany/fabacademy/2019/labs/barcelona/students/josep-marti/tree/master/public/files/Week03) using the design that had been customized by Dhanu and Edu.
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@@ -131,19 +131,19 @@ We cut and shared with our group several objects to determine parameters of the
I exported the file I created using Fusion as a dxf as recommended. On import into Rhino, it was the wrong size. All the info on layers and colors was lost. So I had to resize it in Rhino and set up layers and colors in Rhino and speed, power and frequency in the job control software for the laser. May be worthwhile learning Rhino, Josef says that it is better at 2d design than Fusion.
Angel and I designed the kerf comb with a parameter for material thickness so that it could be used with different materials. We set the spacing of the comb slots to change at .05 mm increments. We tried to use parameters to make the incremental changes to the slots but it doesn't seem that you can do recursion with Fusion parameters. We looked on line and asked Josef and it seems that it is not possible. So in the end I drew that part of it manually.
Josef pointed out that the extra burn marks on some of the letters is related to the curviness of the letters - curvy letters cause the machine to slow down due to acceleration changes and burn more.
Josef suggested that slowing down the speed of the laser would minimize the variation in letter burn. We ran out of time to try this.
Here are the other boards using different materials made by others in our group:
