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-   -   Medusa tapeing (https://www.rc-monster.com/forum/showthread.php?t=19532)

Jeremy1976 03.18.2009 01:53 PM

Medusa tapeing
 
Should you tape both ends and cover the holes or just the wired end? Thanks

Fast5sRevo88 03.18.2009 02:02 PM

Well the holes are bigger and are more numerous on the back, therefore the back is the only part i taped up (used decals so it would look cooler). I left the front holes un-taped for a little airflow, but i also use mike's heatsink which mostly covers the holes up anyway.

GO-RIDE.com 03.18.2009 02:05 PM

I taped both ends of my Medusa motors. If dirt or a small stone get in you could ruin your motor and fry your esc pretty quickly.

Jeremy1976 03.18.2009 02:13 PM

Both ends it is then. I am only going to be running on the black top but would rather be safe than sorry. I am waiting on mike to finish up the end covers! Thanks guys.

OZ-RUSTLER 03.18.2009 06:52 PM

Anyone try this (cell pic)
[IMG]http://i391.photobucket.com/albums/o...R/Image003.jpg[/IMG]

Just a VXL endbell cover. Mine is just wedged there alongside the front chassis brace. It doesnt clip on like the VXL motor because of lack of screws:no:, but I think with some small amounts of thermal paste it will be fine. On the front I just have a piece of thin lexan cut to size.

kvrc 03.18.2009 07:32 PM

when i talked to jeff from medusa he said to go ahead and tape up all the holes if you feel you will be getting any dirt in the motor. the motor dosent actually flow any air internally anyways.

Metallover 03.18.2009 09:34 PM

I've never seen the vxl solution before... Can you buy the end cover by itself?

OZ-RUSTLER 03.18.2009 10:10 PM

Quote:

Originally Posted by Metallover (Post 271224)
I've never seen the vxl solution before... Can you buy the end cover by itself?

Here you go

http://www3.towerhobbies.com/cgi-bin...?&I=LXSGY4&P=7

BitHed 03.18.2009 10:43 PM

Quote:

Originally Posted by kvrc (Post 271186)
when i talked to jeff from medusa he said to go ahead and tape up all the holes if you feel you will be getting any dirt in the motor. the motor dosent actually flow any air internally anyways.

...well thats a surprise...Thanks for that info...

...so in theory all the cooling we should be thinking about is EXTERNAL? ie Heatsinks with big prongs? I prefer prongs to splines :D

q8-maxx 03.18.2009 10:48 PM

I like this v-cover i will get one and remove my alm tape from my medusa thanks for this great job

q8-maxx 03.18.2009 10:52 PM

Quote:

Originally Posted by BitHed (Post 271255)
...well thats a surprise...Thanks for that info...

...so in theory all the cooling we should be thinking about is EXTERNAL? ie Heatsinks with big prongs? I prefer prongs to splines :D

I have put hv heatsink on my 70-2300 medusa motor and do great job
http://www3.towerhobbies.com/cgi-bin...?&I=LXNAB1&P=7

BitHed 03.18.2009 11:05 PM

...yeah i have sinks on them but i am just surprised that Medusa says 'yeah go ahead and close up the holes'...

MetalMan 03.19.2009 01:21 AM

The Medusa has no way of pushing air through itself. Ideally if it were in a plane air would flow through it due to the propeller. So even with the ends open in a car/truck, the amount of cooling due to the holes would be minimal when not covered up.

kvrc 03.19.2009 09:54 AM

yes the medusa motors dont flow air internally. i had mine on the bench with an incence smoker and the smoke didnt blow around at all. i didnt really rev it up since it was unloaded but gave it enough to know. just look through the holes and you will see very little if any daylight at the other end.

suicideneil 03.19.2009 11:45 AM

I guess thats where the fan unit for the rear of the motor comes into play- guessing its aimed at Heli motor applications, but...

DARKWAV 03.19.2009 02:13 PM

Quote:

Originally Posted by BitHed (Post 271265)
...yeah i have sinks on them but i am just surprised that Medusa says 'yeah go ahead and close up the holes'...

Hey Bit...If you look at Medusa's website they mention that one of the specs provided assumes airflow.

"*Based on adequate air flow around motor, i.e., open air stream behind propeller"

So that caveat seems to be there to indicate that to some degree either performance or some operating limits can only be achieved under certain optimal conditions.

I think it is cool that the recognize the surface market and the conditions we put our r/c's through. As long as my temps stay within reason, I'm sure my motor will last longer if I take measures to prevent dust and debris from entering the can

Jeremy1976 03.19.2009 02:29 PM

My Medusa was cool as ice yesterday and all I was doing is major wheel spin and it was wide open within a second of my pulling the trigger. My buddy Brian's VXL was quite a bit warmer. Same battery packs exactly we were running and similar gearing.

BitHed 03.20.2009 09:14 PM

...thanks DarkWav...Yeah i will concentrate a little more on 'around' as opposed to 'through'...


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