I love how smooth the movement is with the v-groove bearings and v-rails. It is really a beautiful thing. So beautiful in fact that I had to take a video of it. There is (almost) zero (happy?) slack on the movement, the sound you may hear when I switch directions is the mirror/lens assembly moving a bit since I haven’t tightened it down yet. I have all the rails and frames drilled, tapped and assembled. I’m working on the z-axis bearing pieces now and all the acrylic that needs to be drilled/tapped is done. Assembly is moving forward as fast as the heat permits, it’s been somewhere close to 5000ºF here in Houston lately and I haven’t setup the portable AC in the garage yet. I should really do that, maybe this weekend. Just need to cut a hole in the ceiling for the hot air exhaust. Here’s a video of the progress I’ve made on the laser so far.