It looks like there's also an issue with the dimensions of part 48729 (a and b variants), and presumably also 3484, based on its use in set 10197:
The angled reinforcements on 48729b are causing a gap of 2 LDU between the 1x1 lamp holder and the 1x2 plate with handle; they should fit flush together.
I think it's a combination of things, but this is based only on part photos:
The angled reinforcements on 48729b are causing a gap of 2 LDU between the 1x1 lamp holder and the 1x2 plate with handle; they should fit flush together.
I think it's a combination of things, but this is based only on part photos:
- The "shoulder" of the clip should be a little steeper, so that the widest part of the clip begins a little farther away from the handle.
- The cutout in the clip could maybe be a tad shallower.
- The angled reinforcements could be just a little less angled with respect to the shoulder.