bitPimps.lixlink.com

How about extracting hot air from the motor via a fan? in a pull type arrangement.

I thought I'd put something together. All I used.

-Bit CharG 3.0 motor + pinion
-4 pins
-lid from an artline marker
-packaging plastic for prop (lol)







It's not installed yet. I needed to make sure it would pull enough air though. Originally I wanted it to push cold air into the motor, but the airflow wasn't very good comming out the small end of the marker lid.

Far from finished, but I'd thought I would share at the very least.

Here's a video. I'm running it off a 80mAh 3.7V lipo.

http://www.woahnelly.com/stuff/xmods/fan.wmv



ph2t.

Cool shit!!

I just wanna see how and where you mount that. Seems a bit big.

Funky!

Lighter 5 inches from Lithium battery

Forrest Gump wrote:And that's all I have to say about that.

This is a good idea, but for me, I found that with Xmods no one method of cooling is efficiently useful. A combination of forced induction and hot air removal can be used. Induct the air while it's in motion, and evacauate it whilt it's not (in the pits or something)

I love it
Maxx

Now I want to see it sucking in the flame

I still think its an idea, as opposed to some indivuals on another forum.. lol..

hey now that's a pretty neato ghetto ducted fan!
erm... i mean yo fo shizzle pizzle fanizzle

i personally think you'd do better to use it to blow a concentrated jet onto a motor/esc rather than extract.

where to mount it won't matter too much, you can use fuel tubing or something to direct a jet of air wherever you want it.

if i get bored enough i'll try to make you a smaller one

hey man, yeah I did this yesterday on mah day off, sad hey! lol....

you may find it's harder to push air through a small hold than pull it. That's what I found. But the prop is not really suited to this type of thing and I'm sure there's losses all 'round, lol....

but yeah, give it a shot if ya wants...

it's a good idea. lots of uses could come out of this. extra air flow for batts, aluminium heat sink( from comp) + fan, etc.
i suppose it can be connected to lights output on xmod.

OK, made a bit more progress fellas....

Finally manged to find some brass tubing that was just right for the application. On the test motor I have partially soldered it to the can and then glued the rest of the join up to ensure it's airtight.

I also covered the other hole with green tape so no air comes in through this. I want all the air to be sucked in via the end bell. This way improving airflow around the armature.



Here is the ducted fan connected to the brass tubing. I only quickly attached it to test so it looks messy I know....




Bottom line, it works! Hot air comes out the back and the can is cooler than just sitting there. There is a lot more to test. for one I don't have a temperature meter which is a pain in the arse. Also, I need to improved the ducted fan and will also change out the fan motor since I think I put too much voltage through it early on.

At 2.4V , just sitting there, after a couple of minutes the can is HOT. This is typical of the plasmatomic (specially when I was breaking them in).

Then I turned on the extractor and after 30-40 seconds it felt cooler!!! lol....

Still, a few things to improve and I'll test again. If the results are consistent, I'll move it onto an EVO chassis and attempts 11.1V lipo again, lol....

That's really awsome dude ! Fuckin creative genius . No wonder you are the one who invented such kick ass turbo's (from what I have heard).

If it runs cooler...it kicks more EDIT : of betty's arse

ph2t wrote:I also covered the other hole with green tape so no air comes in through this.

Green tape is the best for this application, other tape just won't cut it.

If you built a little chamber on the end of that fan, you could put a couple kernels of pocorn in there and make snacks while you drive!

SuperFly wrote:If you built a little chamber on the end of that fan, you could put a couple kernels of pocorn in there and make snacks while you drive!

A screen first so you can get the munchies and a cool smoke trail.