MAKER · R15

3D-printed mini rack for MS110P and Raspberry Pi

A mini rack that stands Raspberry Pi boards upright on top of a MERCUSYS MS110P PoE switch. Pi 3B+ and Zero 2 W boards slide into five rails, and an L-shaped cover closes the roof and the back.

Photo of the mini rack on a desk, seen from the back. The top is hidden under a black cover, and the lower layer shows the MS110P's setting switches, power jack, and green power light. — The build, seen from the back. The MS110P sits in the lower layer, and the Pi boards are inside the black cover.

Envelope: 189 × 122.8 × 119 mm
Rails: 5 · 33.5 mm pitch
Prints: 7 STL files · 8 pieces
License: CC BY 4.0

How it fits together

Bottom The MS110P sits in the base cradle (P01), and the side frames (P02) form the pillars.
Middle Carriers slide into the rails of the deck (P03). The Pi 3B+ carrier P04 takes one rail, and the Zero 2 W carrier P08 takes two.
Top The L-shaped cover (P09) closes the roof and the back of the Pi layer. The front and sides stay open.

Front three-quarter render. Under the roof, one Zero 2 W carrier and two Pi 3B+ carriers stand upright on the deck rails, with the switch on the layer below. — Front

Rear three-quarter render. A flat cover closes the roof and the back of the Pi layer in one piece, and the switch layer below stays open. — Back

Parts

For two Pi 3B+ and one Zero 2 W. Tap a part number to download its STL.

Part	Role	Qty
P01	Base and switch cradle	1
P02 L	Left frame	1
P02 R	Right frame	1
P03	Deck with five rails	1
P04	Pi 3B+ carrier	2
P08	Zero 2 W carrier (two rails)	1
P09	L-shaped cover	1

Bolts and nuts Four M3×8, ten M3×10, and 14 M3 hex nuts. The nuts sit in hex pockets in the prints.
Boards Raspberry Pi 3 Model B+ with the PoE+ HAT, and Raspberry Pi Zero 2 W with the Waveshare PoE/ETH/USB HUB HAT.

Printing and assembly

Made for a Bambu Lab P1S with a 0.4 mm nozzle. The build in the photo has its teal parts printed in PETG and its black parts in PLA. The STL files are saved in their print orientation, so import them at 100% as they are.
Print one carrier first and check that it slides into a rail before printing the rest.
Assemble in this order: base and frames → switch and deck → carriers with their boards → cables and cover. To swap an SD card, undo the two bolts at the back of the cover and slide the carrier out to the front.

What has been checked

CheckedIt passed the CAD clearance check and has been assembled for real.

Not testedPrecise fit and strength, PoE power and heat with the cover on, and long-term use.

Download

Download the 7 STL files · zip 0.9 MB

CC BY 4.0: change and share it freely as long as you credit the source. Product names only identify compatible hardware; this work is not affiliated with their makers.