Something coooool

[Jeff Wohlt]

I am waiting for moderators to review this but not sure it went or not.

Here is something I have been playing with. 5v fan on the end of a motor. Granted, you need holes in the end plates but that is easy and some already have them.

This will cool the internals during a race and even after pulling cool air thru your motor. Keeping the windings cool with water cans is good but we know the arm inside gets very hot.

Tell me what you think. They can be made for any size motor. I have a little more tweaking to do but it is close. Could you also mount your ESC on the end and blow air on it? Maybe. That is a 12XL it is on. Nothing glued on just sat in there but a little more vac forming perfection and it is right on. It is made with .62 styrene so pretty hard and tough.

[justintime2w8]

Um, just buy a lehner, they have them built in.

[justintime2w8]

Ok, thought it was a Neu in the pic, for cheaper motors that would be nice. Especially those being pushed to the limits.

[Jeff Wohlt]

Some NEU motors do have air holes... but not the new mamba motor. Even if you drill out the other set of mounting holes it will draw air thru.

[justintime2w8]

I meant fans, the lehners have fans now.

[Rumdog]

Thats great, if you wanna dump tons of $$ on a lehner. I dig this fan setup! A fan would be a good addition to any brushless motor!

[m4a1usr]

Looks good Jeff. Been thinking on something like that myself. Would cool down the rotor about as it could ever get. Neu's can be ordered with an internal cooling fan on some models. I know some of the 22xx series already have them right from the factory without special ordering them.

John

[domwilson]

Looks cool....
What do you think of removing the internal fan from some old 700 motors and applying them to a BL Motor shaft?

[Ub Hauled]

Looks cool....
What do you think of removing the internal fan from some old 700 motors and applying them to a BL Motor shaft?

Dom, they cannot take the RPM... they used to blow on the 700 cans sometimes, can you imagine the damage on a high RPM brushless?

[graill]

Neat trick if you have the room Jeff. :)

Jeff creates a big, big question, other than the obvious tooling costs, is why the motor manufacturers among others (esc manu's) are so far behind the times in tech, resting on your laurels to long and they get brown and crunchy.

You high profile racers pushing product need to be beating on manufacturers doors demanding the best innovations. :)

[Jeff Wohlt]

I do know that drawing air in is the best method of cooling. Trying to push air does not work unless it is in an open setting. Remember when we used a 4" piece of PVC with a fan at the rear to cool our nicads? I was always surprised how fast they cooled down compared to just letting them sit.

Once I get some holes in the plates then I will know if it really draws good air. I do know this little fan has some power on 7.4 since it is a 5v fan and the guys told me it would not hurt it a bit but she does spin nicely and is BL.

I just think it is a cool idea and had it in my head for some time. This just a mock up to check fitting,e tc. The production, if I do any will be perfect. Pretty thick styrene for such a small pull so it is very sturdy.

[FloatDaBoat]

I do know that drawing air in is the best method of cooling. Trying to push air does not work unless it is in an open setting.

Sucking's better than blowin' - - HAW !!!

[ray schrauwen]

I like it Jeff. COOL.

Been thinking the same but, you're first to the plate.

Rather have an electrical fan than Mechanical (Lehner), because a 1000Mah battery is payload I can handle.
I'll use them on Neu, whatever. The smaller the better if it can still move air needed.

Good for those big blue KB motors if you drill'em out. Was planning too anyway.

[CornelP]

I was also tempted to do something like this, mainly for a big KD45, but I also found some nice fans for the standard motors:

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0191941

These will need almost no extra hardware...

[ray schrauwen]

I was also tempted to do something like this, mainly for a big KD45, but I also found some nice fans for the standard motors:

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0191941

These will need almost no extra hardware...

Thats a nice fan, ebay is a good source too.