This riser is a version of my original, to separate the glass from the top to give it an easy space to rest and vent the top, but WITHOUT support for an AMS..

From the original:

• Wider channel for NEON LED strips since the newer ones are a bit wider. Narrower strips may need 3M tape to secure
• Slightly decreased bottom perimeter improve fit for some filaments/settings that may cause some 'elephant foot' at the base
• Added small lip at front to keep glass in place for more energetic printer movement
• Increased gap between parts by 0.05mm to make assembly easier for some materials that are less exacting
• Added numbers on the bottom to help with aligning for assembly
• Added Holder Clips four on each of the two plates. Brim is enabled for the clips.

I originally started to make a riser with vents for when I print PLA, but decided to go a different route. I wanted to meet these requirements:

• Be able to vent the top, but keep the glass with the printer
• Add additional LED lights in the form of “neon” type LED strip
• Keep as minimal / minimalistic as possible, with a low profile and not take a lot of filament, <500g
• Keep it all together, avoiding wall mounting or sitting to the side

The light strip I use is the vimeepro 5V USB LED Neon Lights Strip 3.3ft neon Rope Lights Flexible Waterproof Neon LED Strip that I bought from Amazon: B0BB724ZS9. I like these lights as they provide good additional light without washing things out. If those are not available, you could use the 6' one and cut it short as needed. B0B73VGSCL. Availability of these seems to go in and out of stock. I would think that similar “NEON”-type LED strips should work. Another option provided by @moebis is https://share.temu.com/u5L2QMYplFA

This riser has a second shelf above to hold the glass top, allowing venting, but keeping the top with the printer.

The gap between the parts is 0.1mm for the original profile so it's meant to be a tight fit that stays together. The R4 profile has slightly larger gaps at 0.15mm.

No supports required. If you only print PLA, then printing in PLA will be ok. Best to print in either PETG, ASA, or ABS, especially if your chamber temps get to 50+ as then you are getting close to the glass transition temp of PLA and could cause problems.

“Holder Clip.stl” is a clip that can be used to hold the LED power cord along the back before exiting the riser. “Holder Clip.3mf” has 6 of them.