[Jeff, Daniel, Sander]
We have moved the TMC optical tables into close to their 'final' positions, according to the designed lab layout (see attached). We extended the caster wheels in the tables, which allows them to be moved around with two people pushing and one person guiding the table. The east table is not pushed up to the other table fully. We need to find some way to do this without bumping the tables into eachother and end up with both tables in the final desired positions. Note that the table tops are raised when the wheels are extended (vs. wheels retracted) and that the breadbord table tops protrude slightly from the base of the top (i.e. there's a horizontal 'lip' at the top), which makes this more difficult.
Some observations:
- As mentioned previously, the tabletops are not rigidly attached to the legs. This means the tops can and will move slightly on the tops of the pistons (which are on top of the legs) that the tabletop rests on, limited only by friction. The only thing preventing the top from moving completely off the legs are the earthquake stop bars.
- It seems the heads of the pistons (black part in photo), are not aligned with the bodies of the pistons (silver part in photo); inadvertently moving the top w.r.t the legs probably caused this misalignment. This misalignment is quite bad for some of the legs (see photo).
- The table tops do not rest equally on all four legs, there are visible gaps between the tops of the pistons and the top (see photo). This is probably because the lab floor is not level.
I think we can do the final movement by extending wheels on both tables, so that the breadbord lips are at the same height and the tables can recoil when pushing them together. Then we can try to slowly push the tables together so there's no gap, which will likely move the tables away from their desired final position. Then we could put e.g. a breadbord over the seam to make a rigid connection, after which we can do the final positioning, moving both tables at the same time.
You have the SHG sled and power distribution on this diagram twice just fyi.