BIQU H2 REVO Part Cooling Fan Duct observations/improvements
Part Cooling Fan Duct shared in earlier post is better than nothing, and helped print LR3 Cores. However…
Seems like improvements are needed for the Part Cooling Duct to be useful at higher speeds:
- Duct holes are too far apart, and too far forward from the nozzle.
- Duct openings are probably too small (3mm x 14m) when compared to other printers, e.g. Voron Trident (3mm x 23mm) duct openings.
- Should enlarge volume of duct channels routing air from Fan to Vents.
- Interface to radial fan should be external instead of internal to maximize air volume.
- Geometrically simpler, less sweeping curved parametric lower ducting would be nice to create, and tune/refine. While ensuring ducts still clear the BLTouch mount.
- Currently using a 24V WINSINN 5015 Blower, spec says 3.23cfm. Ordered similar dimension blower with 6+ cfm, we’ll see… Noticed some people using 2 blowers, or larger 70mm blower, or CPAP tube being fed air from frame attached blowers. Hoping a stronger 5015 will be good enough so part cooling isn’t the bottleneck.
- Other stuff?
Don’t have time or fluid simulation software to investigate and improve at the moment. Sharing some observations incase someone’s interested in pushing this further…