While I am waiting for some motivation to tear down my Primo, I started tinkering with an idea. @jamiek did this really cool jackpot box where he uses transparent filament to display the end stop leds in the front strut plate (see his build thread here [Jamie's LR4 RC2/RC3 Upgrade - #141 by jamiek]).
I really like this gimmick, but already printed @DougJoseph gantry back covers and jackpot in-gantry mount. So I cannot use the adapter from Jamie to attach the transparent filament to the jackpot board… and started designing my own version.
I do not have transparent filament, but I do have some old spare toslink fiber optic audio cables. The core of these cables is 1 mm in diameter, so thinner than typical filament, but it should be enough.
Here is what I came up with:
I designed a small adapter that clamps to the jackpot board by grabbing the DuPont connectors and the board itself (see the one mounted to the picture). It features small walls between the leds, so that they do not light up each other (see the one upside down on the table). The fiber optic cables can be secured with a M3 screw. The design is still WIP but I wanted to show it to you and see what you think.