Coolermaster Qube 500 Desk Side Mount

This mounting system for the Coolermaster Qube 500 enables secure attachment to the side panel of a desk. Once the brackets are fixed to the desk structure, the case can be frontally extracted without the need for tools, allowing for easy access and maintenance.
The number of copies to be printed is indicated at the beginning of each STL file name.

There are two different designs, whose only difference lies in the lower supports:

Old version: the brackets replace the original feet. It is more stable thanks to the presence of steel rods and prevents the case from bending if it is very heavy. On the downside, the clips of the feet break very easily if printed in PLA instead of a slightly more flexible material.

New version: the original feet are left in place, and there are brackets that support only one side of the feet. Thanks to the upper brackets, the weight on the lower ones is not excessive and is sufficient. On the downside, if installed incorrectly or if the case is full of heavy components, it might bend slightly. I only recommend this version if the other one cannot be installed.

Bill of Materials:

• 2x M6 Threaded Rods (230mm) (4 if you choose the “old version”)
• 12x M3 Wood Screws
• 4x M6 Hex Nuts (8 if you choose the “old version”)

Printing Parameters

• Material: PLA or PETG (recommended for mechanical strength)
• Layer Height: 0.2 mm
• Infill: 70%
• Walls: 5 perimeters
• Top/Bottom Layers: 5
• Supports: The parts have been modeled to minimize the need for support structures during 3D printing. It is recommended to follow the orientations shown in the images below for optimal print quality

Upper arms:

Lower arms (old version):

Brackets: no supports for the upper brackets (left), use support for the lower (old version)

• Pause: Each knob requires a print pause after 7 mm height to allow insertion of an M6 hex nut.

Mounting Procedure
1. Insert Nuts into the Arms: Place the remaining M6 hex nuts into the two (four for the old version) printed arms. Optionally, add a small amount of adhesive to hold them in place.

2. Install the Threaded Rods: Screw the M6 threaded rods into the arms. For faster installation, you can use a power drill.

3. Attach the Knobs: Screw each knob onto the exposed end of the threaded rods.

4. Secure the Upper Arms to the Case: Fix the upper arms using the original silver screws already present on the Qube 500 case.

5. (OLD VERSION ONLY) Remove the Stock Feet and Position Lower Arms: Detach the stock feet from the case and mount the lower arms in their place.

6. Print the Template: Print the file “Template A4.pdf” and join the 6 sheets so that the guide lines match the actual dimensions. Use the “Fit to Printable Area” setting during printing. If you choose to print the Old Version, you can use the existing holes.
If you choose the New Version, you can use the three existing holes for the upper brackets, while for the lower brackets, you’ll need to use only the top two holes at first. Once the support is secured to the desk, you can insert the remaining screw.

7. Mark the Mounting Holes: Place the assembled template on the desk panel and use it to mark and drill pilot holes.

8. Install the Brackets: Secure the brackets to the desk using the 12x M3 wood screws.

9. Mount the Qube 500: Slide the Qube 500 into the mounted bracket system. 

Additional Notes

If possible, print the parts using PETG or other strong materials. Alternatively, increase infill density and the number of perimeters. I personally printed mine in PLA — thanks to the threaded rods, the system is still very stable and strong. However, my PC is relatively lightweight (no AIO, no large GPU, etc.).

Do not use M3 wood screws that are too short — ensure that at least 6–7 threads are properly engaged in the wood. DO NOT OVERTIGHTEN THE SCREWS.

Make sure the panel to which the brackets will be mounted is structurally sound and rigid enough to support the load.

Tollerance used during the desing: 0.2-0.4 mm

The case model shown in the images is the official Coolermaster Qube 500 model available on Printables.com.

DISCLAIMER: I AM NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY THE USE OF THIS SYSTEM.