@Alex9779 Great analysis. It's a difficult problem. My hunch is that the only way to direct air from one side to the other is to have really FAT tubes. And of course if you are taking half the air away then you need twice the power to achieve the same effect. Even before losses. This is really saving a lot of time in terms of everyone building something and then getting poor results for a few weeks and then having to re-design. Was the Richrap fan any different?
Any progress on this? My BB is on the way so I can't contribute but this seem to intresting not to check if there is anything new...
Nope, hacking firmwares and profiles. Preparing for dual Titan... Also I am not very interested in simulating the RichRap shroud because it is single nozzle only and I won't use it ever...
Understood.... thought the idea was to benchmark it and see it's performance to get a "standard" to test against. I got the feeling that this was a better solution for single extruders but we needed something for the dual... therefore my interest. So any real life test on the done shroud? I got the Impression that some had it... is the simulation accurate? Is the shroud better?
Since we may not yet have a good solution for the dual, IMHO it's worth running a simulation on Richard's design in case it works really well and becomes a source of ideas. I noticed he did a variation for the BCN Sigma printer he uses all the time now. It's a dual but with two separate print heads.
Nice... hope you and Chase have time to feedback results later. This is very appreciated. I hope to be able to contribute in some small way later...
I printed @Chase.Wichert design yesterday and mounted a fan to it to check the flow and compared it to the stock fan duct. The air steam is not as strong as for the stock duct. The "feeling" of the air stream is plausible to what the simulation shows IMHO.
I wonder what the "feeling" is like inside Richrap's? I trust his experience / judgement and if he's using it then it must be delivering all round (!) better results.