Sometimes at work I am allowed to exercise an iota of creativity, and this was one of those instances I was tasked with replacing the hookup light with a brighter LED one on a MACK CX13.

The new lamp is a little light bar on a swivel mount. The owner of the truck lost the mounting hardware, but the threaded holes are intact.

I cut and welded some unidentified stainless steel brackets onto the top bar, where one might tie up his trailer hookup lines.

Light Bar

The old lamp was round and mounted low on the cab with three screws. I knew I could use the existing bolt holes to enclose the lighting wiring.

I took a picture of the cab and some measurements of the hole spacing, and brought it into Fusion.


Some quick modeling later:



I printed the body and the lid out of PETG on the Bambu P1S. The embedded Fusion preview also shows the TPU gasket I printed for the back side to reduce water intrusion.

Here it is all installed:

Installed Box