I don't know much about modding, and I'm not sure I could use the device, but I love making stuff, so I'm just going to post here so I can see how this turns out 
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- Thread starter Scubabatdan
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My pleasure. Knowing which words to google is my secret weapon.
Agreed, I ordered one last night
Dan
Cool. I would be interested in the performance results compared to blower type fan. When I first found it I thought it was a squirrel cage type blower which naturally have higher static pressure ability. Forcing enough air through a few tiny holes will require a higher static. With fans, restriction causes cavitation if you will and reduced airflow. With squirrel type blowers, a restriction of the outlet normally results in higher air pressure and increased velocity.
You are using this fan (for big holes and low pressures) for different purposes - high pressure and very small hole. I don't think it will be useful with this design. Toy only. For real air flow through these holes you need another type of device.
Well, results below... Not what I was hoping for, so onto proto #2 (still waiting on parts)
Same results as the 4mm fan running at 16,000rmp BUT quieter (ALOT quieter)
Dan
Same results as the 4mm fan running at 16,000rmp BUT quieter (ALOT quieter)
Dan
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Looking good. Did you do any sealing around fan housing? Hard to tell from the quick shot of bottom. Some of the flow might be bypassing or recirculating. I like the form factor and quietness of this version compared to first.
Good point, no I did not. I could try som foam sheeting and cut rings to seal it with.
Dan
Holy crap!
What a differance, I cut a foam washer and put it on top of the fan so when the top is screwed down the air has no place to go but under pressure and out the atty.
Will do a short video showing the differance!
This is closer to what I was wanting!
Dan
What a differance, I cut a foam washer and put it on top of the fan so when the top is screwed down the air has no place to go but under pressure and out the atty.
Will do a short video showing the differance!
This is closer to what I was wanting!
Dan
Ahh thanks, hard to keep track. Looking forward to #2 as well.
Fans are in production by the shapeways robots, should be done by the 1st, so I should get the new fans for proto #2 soon.
Dan
Looking good. Glad you've almost got it where you want it. I'm sure there are a lot of people who could use this. Looking at it brings another idea to mind, I'll PM you about it so this thread stays on track.
I have one of the most important questions overlooked as of yet. What in the _ _ _ _ is somebody with COPD doing smoking. I could postulate that this is a way for them to get off of the cigs, or maybe they are planning on administering their drugs with a ecig. Hmmmm. 
I could postulate that this is a way for them to get off of the cigs, or maybe they are planning on administering their drugs with a ecig. Hmmmm. - Status
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