6/11/2021.

Detachable lamps

The idea came to me when I noticed that the ends of the coach can be removed, making it easier to install the miniature connectors.

Coach with its ends removed

Preparing the end for the installation of the lamps

I drill the end wall right over the “fixings” for the lamp holders.

Drilling the lamp holders

The result is, as for the coaches treated before, quite discreet.

View of the wall drilled

Click on the picture to zoom in.

I’m doing a blank assembly of lamps, which will allow me to see how it looks like on the connector side.

Blank assembly of the lamps

Rearview showing the installed connectors. As the holes are very close to the wall on the inside, it’S impossible to mount the connectors on the proper PCB? which would be too visible through the door window anyway. I’ll have to glue them in.

Inside view of the connectors

I first solder wires on these tiny tabs, after tinning. These tabs, not designed for this purpose, are very fragile: I broke two of them!

Soldering wires on the connectors

Mounting and gluing the connectors

Here is how the assembly and gluing process goes. I install the assembly guide I mentioned here in a vice.

Assembly guide

The end of the coach is slid on, through the holes in the lamp holders, and a connector is placed on it. A drop of CA glue is placed on the side.

Gluing a connector

Click on the image to zoom in.

Result:

Body end equipped

Note: I used only black wires to keep as much discretion as possible. A small piece of red heat shrink tubing will be used to mark the positive polarity.

Preparing the body for the wires

The wires will run along the windows and then enter the body through two holes under the roof. It turns out that I drilled the first holes too high (they would have prevented the part from sliding from bottom to top, back in its position). So, I re-drilled them a little lower (ø 1.3). It would be possible to pass the wires around the central clip, but they would be less well guided. The hole solution keeps them as invisible as possible.

Drilling the body

Click on the image to zoom in. Appreciate the fineness of the engraving of the handrails.

Gluing the wires

The wires are glued with Kristal Klear along the door windows. Care must be taken to ensure that they don’t extend beyond the contact plane with the body wall, hence the vertical clamp.

Gluing the wires

Click on the image to zoom in.

Here is the finished gluing.

Glued wires

Reassembling the part onto the body

The wires are passed through the holes provided. The end of the body is snapped on without difficulty. Inside view:

Inside view of the reassembled body end

Click on the image to zoom in.

The wires are taken out through the water tank hatch, which will allow me to solder them through this opening on the future lighting strip, after the body is reassembled on the chassis. I test the operation.

The wires come out of the coach roof