Dual 170HX · 120 mm duct

Two CMP 170HX cards, one ARCTIC P12 Pro PST CO. Pick the card spacing in your case: one empty slot between the cards (5 slots), or adjacent cards (4 slots).

Your case: Fractal, recessed slot bay

The exhaust collectors in the layout cards below need a flat rear panel and don't fit this case. Its collector plugs into the recess over the two cards and the middle slot, leaving slots 1 and 7 open; print the fit gauge first.

Untested draft. The plug collector is sized from photos; it has not been printed or fitted, and it is not released until the gauge and the bay measurements confirm it.

fractal-fit-gauge

Fractal plug fit gauge (photo estimates)

5-slot · one empty slot

Duct V30

hub fairing behind the fan

2 h 36print
72 gPETG
12.3 L/sCFD flow
67.1 Kpeak fin rise

CFD run v30-pp-plug: push-pull 2500/2500 rpm.

Open the 3D preview · your Fractal case, plug collector (draft) →Flat rear panel · untested collector →

Exhaust collector v4-5slot

exhaust collector v4, 5-slot layout (concept A)

Untested. No exhaust collector has been printed or fitted to a real case yet: the fit, the seal and the airflow gain are model results only. Print the fit gauge first and check every measurement in the print notes.

3 h 15print
89 gPETG

4-slot · adjacent

Duct A30

hub fairing behind the fan (adjacent slots)

2 h 26print
68 gPETG
12.4 L/sCFD flow
67.1 Kpeak fin rise

CFD run a30-pp-plug: push-pull 2500/2500 rpm.

Open the 3D preview · your Fractal case, plug collector (draft) →Flat rear panel · untested collector →

Exhaust collector v4-4slot

exhaust collector v4, 4-slot layout (concept A)

Untested. No exhaust collector has been printed or fitted to a real case yet: the fit, the seal and the airflow gain are model results only. Print the fit gauge first and check every measurement in the print notes.

3 h 04print
83 gPETG

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