Perhaps someone on this thread will know the answer to this: is it possible to make V shaped grooves with a laser cutter, or would they end up stepped?
A laser cutter has no inherent depth control. But you can modulate the power, which depending on the exact laser+material combination will give varying depth. In "raster" mode it can be modulated continuous so smooth transitions/slopes are possible. But the exact effect will need to be tested on samples.
Maybe. Many laser cutters are 3dof so there is no way to tip the cutter to a different angle. Find one with a couple extra axis and then sure.
That would be a lot easier with a CNC mill/router and the correct shaped cutter.