Dust collection design report. DcShop 2.0.0. Created October 6, 2026 3:23 PM.
| Tool | Collector | Needs CFM | Gets CFM | Total SP (in) | Air speed | Collector fit |
|---|---|---|---|---|---|---|
| Bandsaw | Path not complete. Pipe has an open end before the collector. | |||||
| Jointer | 2 HP single-stage (derated) | 350 | 423 | 5.97 | Red | InRange |
| Planer | 2 HP single-stage (derated) | 450 | 414 | 6.07 | Red | Short |
| Table saw | 2 HP single-stage (derated) | 350 | 426 | 5.94 | Red | InRange |
Where each tool's duct curve crosses the collector's fan curve is the airflow that tool will actually get.
Table sawJointerBandsawPlaner
Branch air speed should stay between about 3,500 and 4,500 FPM to keep chips moving without excess loss.
Table sawJointerBandsawPlaner
Full-system report. One tool runs at a time. 4 tool path(s) analyzed. Path � Table saw - 2 HP single-stage (derated) to Table saw. - Operating point: 426 CFM at 5.94 in SP. - Tool minimum: 350 CFM. - 6 in: 2171 FPM, Red. 39.1 eq-ft, 1.37 in SP. Pipe 8.8 ft, flex 3.1 ft, 3 x 90, 0 x 45, 1 wye branch, 0 wye straight-through, 0 open gate. - Reducer 5 in to 6 in. - Reducer 4 in to 5 in. - 4 in: 4885 FPM, Yellow. 11.3 eq-ft, 1.13 in SP. Pipe 0 ft, flex 3.8 ft, 0 x 90, 0 x 45, 0 wye branch, 0 wye straight-through, 0 open gate. - Duct loss 2.49 in. Collector loss 3.45 in. Conclusion - The fan supplies about 426 CFM against 350 needed: InRange. - Fan curve: this is a derated planning curve for a typical collector of this class, not a test of your tool. Your collector may do better or worse. Enter its published or measured curve for a firmer answer. - Too slow to carry chips: 6 in. Recommendation - Leave the slow pipe at this size. A smaller pipe would drop the flow. ---------------------------- Path � Jointer - 2 HP single-stage (derated) to Jointer. - Operating point: 423 CFM at 5.97 in SP. - Tool minimum: 350 CFM. - 6 in: 2154 FPM, Red. 44.7 eq-ft, 1.56 in SP. Pipe 13.4 ft, flex 3.1 ft, 3 x 90, 0 x 45, 1 wye branch, 1 wye straight-through, 0 open gate. - Reducer 5 in to 6 in. - Reducer 4 in to 5 in. - 4 in: 4846 FPM, Yellow. 9.8 eq-ft, 0.96 in SP. Pipe 0 ft, flex 3.3 ft, 0 x 90, 0 x 45, 0 wye branch, 0 wye straight-through, 0 open gate. - Duct loss 2.52 in. Collector loss 3.45 in. Conclusion - The fan supplies about 423 CFM against 350 needed: InRange. - Fan curve: this is a derated planning curve for a typical collector of this class, not a test of your tool. Your collector may do better or worse. Enter its published or measured curve for a firmer answer. - Too slow to carry chips: 6 in. Recommendation - Leave the slow pipe at this size. A smaller pipe would drop the flow. ---------------------------- Bandsaw: the path to the collector is not complete. - Pipe has an open end before the collector. ---------------------------- Path � Planer - 2 HP single-stage (derated) to Planer. - Operating point: 414 CFM at 6.07 in SP. - Tool minimum: 450 CFM. - 6 in: 2109 FPM, Red. 50.5 eq-ft, 1.77 in SP. Pipe 20.3 ft, flex 3.1 ft, 3 x 90, 0 x 45, 0 wye branch, 3 wye straight-through, 0 open gate. - Reducer 5 in to 6 in. - Reducer 4 in to 5 in. - 4 in: 4746 FPM, Yellow. 9 eq-ft, 0.85 in SP. Pipe 0 ft, flex 3 ft, 0 x 90, 0 x 45, 0 wye branch, 0 wye straight-through, 0 open gate. - Duct loss 2.62 in. Collector loss 3.45 in. Conclusion - The fan supplies about 414 CFM against 450 needed: Short. - Fan curve: this is a derated planning curve for a typical collector of this class, not a test of your tool. Your collector may do better or worse. Enter its published or measured curve for a firmer answer. - The margin is under 15%, which is inside the uncertainty of a fan curve. Treat this result as borderline. - Too slow to carry chips: 6 in. Recommendation - The fan is the limit. A stronger collector, or a lower measured separator and filter loss, is the fix. Do not shrink the pipe.
| Part | Size | Material | Qty | Total length |
|---|---|---|---|---|
| Pipe | 6 in | Metal | 13 | 360″ |
| Elbow 90 | 6 in | Metal | 6 | |
| Elbow 45 | 6 in | Metal | 1 | |
| Wye | 6 in | Metal | 3 | |
| Reducer | 5 x 4 in | Metal | 4 | |
| Reducer | 6 x 5 in | Metal | 4 | |
| Flex hose | 4 in | 4 | 155″ | |
| Flex hose | 6 in | 1 | 37″ |
Pipe is listed as drawn, one row per size. Each drawn pipe fits in one stock length.