Improved Decorative Ring Lamp

This is a remake of the excellent "Ring Lamp" from Sevro, ref : https://www.thingiverse.com/thing:6687166

There were a few things I didn’t like about the original model, so I made the necessary corrections:

- I reoriented the rear power jack so it’s no longer angled upward but straight, allowing the power cable to lay flat.

- I replaced the 12 mm hole for the snap-in plastic power jack with an 8 mm hole for a standard threaded metal DC power jack.

- I changed the 15 mm round hole for the power switch to a 10×15 mm rectangular opening that fits a more common KCD11 SPST rocker switch design.

- I added four pad recesses on the underside corners to fit 8 mm non-slip silicone pads (see references to procure). The model is quite light, and the pads make a big difference in stability. No more sliding to the floor. Mandatory for a professionnal finish.

- In the original design, the main frame wasn’t screwed to the base—it just slid in with a small square pin, which made it fragil