Bed Lighting - Gantry mounted for Ender 3 Pro, V2, others?

This light bar mounts on the back of the X gantry and shines light directly on the current layer being printed. It was designed specifically for the Ender 3 Pro, but may work with other Ender 3s or any printer that uses a V-slot gantry bar. Be sure that none of the assembly extends below the nozzle Z position.

After I got my Ender 3 Pro, I found it irritating that viewing the layer being printed (especially the critical first few layers) was so difficult due to the printhead being in the way and the shadow beneath. All the lighting solutions that I found were mounted on the top crossbar, which made the shadow even deeper. I saw that there was no reason that a light bar couldn't be mounted on the back as long as it didn't extend below the nozzle. After considering it for some time, I came up with this arrangement.

Many places have LED strips that can be cut to length, and I recently found that they are available for 24V operation. So I designed a slotted rail that would accept the strip and a couple of brackets that attach to the back of the X gantry using T-Slot nuts. The brackets are a snug fit on the ends of the rails, and the strip slides in from the end. Power is taken directly from the power supply terminals. The brackets are designed to be above the Z height of the current layer and the light shines down at an angle that illuminates the nozzle tip. So that critical first layer can be viewed in good light.

Print the slot rail flat with the slot facing up.  No support is needed for the slot rail.  The angle brackets should be printed as shown in the slicer bed image, with snug support (the green part) for the overhang.
There are wide and narrow versions of the angle brackets, but I recommend the wide ones.

I have included a detailed PDF construction document with pictures. It was written for the Ender 3 Pro with the vertical power supply. I have since acquired an Ender 3 V2, and it will work with that also, but the wire routing is different. I suggest routing it up along the cables to the print head. Be sure there is enough length to reach when the gantry is at full Z height. Any other printer that uses a gantry with a rear V-slot can use this model. The Ender 3 S1 series requires a different bracket mount, which is also available as a separate model at https://www.printables.com/model/1563704-bed-lighting-gantry-mounted-for-ender-3-s1pluspro.

The 24v LED strips are readily available on Amazon, as is the 24 Ga. speaker wire, although together they will cost around $20. You can also find stls for v-slot nuts and print them.

If you build and install this, please post your make!

I don't require payment for my designs, but if you find this useful, a coffee would be appreciated. 
My Venmo ID is @Techineer. Thanks!