3D Slash CAD software works on a Raspberry Pi
Into the Cloud
Once started, the program has to be activated (Figure 2) and connected to the user's web account. The activation code is found on the 3D Slash home page, and it is entered into the appropriate program dialog.
Connecting the program to the user account makes it possible for the user to synchronize models with the cloud via the settings dialog (Figure 3). This does not happen automatically, so the program will also work offline.
For users with a free account, models saved by a user who has a free account are automatically saved under the Creative Commons License BY-NC-SA. This means that anyone has the right to use the model as long as three conditions are met: Credit must be given to the original creator (BY), the work will not be used commercially (NC, non-commercial), and derivative works are placed under the same license (SA, share alike).
First Steps
Once 3D Slash boots, the user sees a clean interface (Figure 4) with several buttons to the top left and right. The somewhat unfortunate plus symbol to the far right leads to a settings dialog. The floppy disk and New buttons are self-explanatory.
The application displays a selection of tools at the upper left. Figure 4 shows the hammer. The mode currently used is found to the right of the tool display. A small info box pops up when the mouse cursor touches the field of a tool. The hammer chips away effectively at the cuboid, hacking off cubes according to the size selected. The lines and curves icons shorten this process. Instead of individual cubes, the user can highlight cubes along a line or curve with the mouse and then remove all affected cubes with a single click.
Switching tools is somewhat awkward and requires at least three mouse clicks. First the user has to click on the currently active tool at the upper left, which opens the tool selection (Figure 5). Next, the user clicks the desired tool. Then the user clicks ok to accept and return to the main window. Repeating the procedure quickly becomes tiresome, especially if the user switches between the tools frequently.
A missing toolbar familiar to other programs is a surprising omission. Also selecting cuboid size with a slider would be simple and save space. Restricting the cuboid size to powers of two makes representation easy, but creating objects in powers of 10, the basis of the metric system, becomes more difficult.
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