I think you are going to need more space between the bulb and the trellis. If you plan on keeping things tied close to the trellis, that's fine, but the branches will want to grow out and toward the bulb. That's why I asked about the access. Having a hinged cylinder will not work once the plants are all tied in. You will need to access form the top and the bottom. Stretch of the branches is one part of it, but when the flowers are developing they stretch out as well. Make sure you take this in to account. I look forward to your progress on this idea. I assume you will be LSTing the plant and then taking leaders up the cylinder.. It would be nice if you could build this all on a frame with casters and have a quick connect for your buckets. Otherwise, you will need to veg for a considerable amount of time in your flower room.
Hey Cap! Great to have you stop in! To address your concerns; the design is meant to allow for buds to grow 6" towards the light from the trellis. I will get away with a 15" bulb to bud distance only because the light will be moving, and relatively quickly; I'm shooting for 3-5 cm/second, or 1-2 minutes for one full 4' up down and back up cycle. I know it works at this distance as I have done it before.
This is actually the whole crux of the concept of moving the light, right here; if the bulb is already far enough from the plants that it won't burn them, what's the point of moving it? On the other hand, if the bulb IS that close, what benefits accrue? I can already answer that one; super strong growth, vigorous health and stanky sticky buds! The idea is to increase the DLI by moving the light and having it come so close, over and over, all day long. We'll see how it works!
The hinge is not meant to allow the whole thing to swing wide open like a door, only enough for someone to squeeze through. Each of two plants will stay in its own half, so no branches will grow across the opening point.
The rolling table idea only made sense to build if it fit thru the door, and it definitely is not going thru a 30" doorway! I do like the idea, and I love the quick disconnect idea, too!
The way I'm getting around a long veg time- or any veg time at all, for that matter- is to install my plants at about 16" in height, then LST during stretch. The strain is super silver haze, SSH should be called SST because it grows so dammed fast- I personally have caught this strain stretching 4" A DAY. The 3.5 feet from such a freshly installed bush to the upper corners of each trellis is well within the stretch capabilities of this strain. Other, less stretchy stains will no doubt require extra veg. time.