Upcoming Castle Outrunner Motors - Page 3 - RC-Monster Forums

Metallover · 10:17 PM

Quote:

Originally Posted by MetalMan

Hoping the pricing will be less than Axi.

I hope it is well under 100 dollars... the motor I have now costs 30 bucks so anything over 50 will seem expensive.

Here is a picture of my crt .5. It would look great with a nice looking CC outrunner in it, wouldn't it? I need about the same specs as linc's... I don't know the stator measurements, but ~1100kv, 25mm spacing, ~36mm OD, and a 5mm shaft. Is that around 2822-26?

Metallover · 03.05.2009, 08:37 AM

I think a fan attachment like the the new Medisa motors are coming out with would be a good addition to any outrunner. I'd sure get one. I think some axi motors come with a fan on them?

Sammus · 03.05.2009, 09:29 PM

Quote:

Originally Posted by Metallover

I think a fan attachment like the the new Medisa motors are coming out with would be a good addition to any outrunner. I'd sure get one. I think some axi motors come with a fan on them?

you buy the fans separately, I'm not sure if any come with them. http://www3.towerhobbies.com/cgi-bin...SM&C=GHZ&V=AXS

sikeston34m · 03.05.2009, 11:20 PM

Quote:

Originally Posted by Sammus

you buy the fans separately, I'm not sure if any come with them. http://www3.towerhobbies.com/cgi-bin...SM&C=GHZ&V=AXS

Those fans are designed for AXI outrunner motors.

They won't fit Castle motors.

Sammus · 03.06.2009, 12:26 AM

Quote:

Originally Posted by Metallover

I think a fan attachment like the the new Medisa motors are coming out with would be a good addition to any outrunner. I'd sure get one. I think some axi motors come with a fan on them?

Quote:

Originally Posted by Sammus

you buy the fans separately, I'm not sure if any come with them. http://www3.towerhobbies.com/cgi-bin...SM&C=GHZ&V=AXS

Quote:

Originally Posted by sikeston34m

Those fans are designed for AXI outrunner motors.

They won't fit Castle motors.

I never claimed they would fit Castle outrunners, I was just responding to Metallovers postulation.

SunnyHouTX · 03.05.2009, 10:25 AM

How much voltage can you run through outrunners in general? Can you stick 10S on a ~800Kv outrunner? This is all new stuff for me.

MetalMan · 03.05.2009, 12:22 PM

Quote:

Originally Posted by SunnyHouTX

How much voltage can you run through outrunners in general? Can you stick 10S on a ~800Kv outrunner? This is all new stuff for me.

The max RPM will greatly depend on the diameter of the motor. However, many 800kv motors won't be able to cope with more than probably 6s.

SunnyHouTX · 03.19.2009, 03:31 AM

Quote:

Originally Posted by MetalMan

The max RPM will greatly depend on the diameter of the motor. However, many 800kv motors won't be able to cope with more than probably 6s.

So if I remove the center diff of my truggy and replace it with the 770Kv Castle outrunner, it should be OK, correct? Max RPM with a fully charged 6S is about 19,400. Run times should be much longer than what I get with my Medusa 36-70-2000?

Thanks for your input.

MetalMan · 03.19.2009, 03:43 AM

Quote:

Originally Posted by SunnyHouTX

So if I remove the center diff of my truggy and replace it with the 770Kv Castle outrunner, it should be OK, correct? Max RPM with a fully charged 6S is about 19,400. Run times should be much longer than what I get with my Medusa 36-70-2000?

Thanks for your input.

Can't comment on the max. RPM of the Castle outrunners, but as a guess I would say that RPM is too much.
Also, assuming a truggy diff ratio, your theoretical top speed is past 60mph which is IMO too much stress to put on a reasonably sized outrunner.
A kv of up to 550 will net a top speed of about 45mph, which is the highest I think you should shoot for (again, my opinion). Outrunners don't make the same power inrunners do.

SunnyHouTX · 03.05.2009, 01:14 PM

Wow. Thanks MetalMan. Looks like I will be staying with inrunners then.

What's_nitro? · 03.05.2009, 11:15 PM

Quote:

Originally Posted by SunnyHouTX

Wow. Thanks MetalMan. Looks like I will be staying with inrunners then.

If you can provide the proper gearing, the outrunner motors will provide the torque.

sikeston34m · 03.05.2009, 11:34 PM

Quote:

Originally Posted by What's_nitro?

If you can provide the proper gearing, the outrunner motors will provide the torque.

Yes! Very True!

For Example:

Notice BIG GEARS

Now Watch it go

This is an E maxx powered by an AXI 2826/8 outrunner motor using 22/40 Mod 1 gearing. Not every motor can pull gearing like this and run cool.

It's not huge on top end but it's fun and efficient. This makes for longer run times. Great Mild Setup. Very Dependable.

The stator size is 28mm in diameter X 26mm long. Stator Size has a huge impact on overall performance. I'm thinking Castle did their homework on this one.

Metallover · 03.05.2009, 11:38 PM

You know what would be great? I'd like to see an adapter that would let you use a spur gear as your pinion gear. Look at the picture above. Drill out a couple holes in that pinion and then you could screw the spur onto it.

Anyone think this would be a useful item?

sikeston34m · 03.05.2009, 11:49 PM

Quote:

Originally Posted by Metallover

You know what would be great? I'd like to see an adapter that would let you use a spur gear as your pinion gear. Look at the picture above. Drill out a couple holes in that pinion and then you could screw the spur onto it.

Anyone think this would be a useful item?

There are several problems with that.

#1. Even a 25 tooth gear isn't big around enough. A 30+ tooth would be required for the threaded holes to be into the meat of the gear inwards beyond the teeth.

#2. This is some HARD stuff. The good thing about it is, it is hardened by tempering. This means in its current state, it isn't drillable. The way to overcome this is, heat it up cherry red with a torch.(acetylene torch) Then let it cool slowly in open air. This removes the temper and makes it drillable and tappable. Drill and tap. Then reharden by replacing the temper. To do this, heat it up cherry red again, then drop it into cool motor oil. Quench it, as they call it. This restores the temper and hardness. IF you attempt this, wear eye protection and be wary since there is a violent reaction when you quench it. Spatter, splatter, sizzle.

#3. How would you be sure that your holes were perfectly centered? It has to run true you know?

Metallover · 03.05.2009, 11:55 PM

Quote:

Originally Posted by sikeston34m

There are several problems with that.

#1. Even a 25 tooth gear isn't big around enough. A 30+ tooth would be required for the threaded holes to be into the meat of the gear inwards beyond the teeth.

#2. This is some HARD stuff. The good thing about it is, it is hardened by tempering. This means in its current state, it isn't drillable. The way to overcome this is, heat it up cherry red with a torch.(acetylene torch) Then let it cool slowly in open air. This removes the temper and makes it drillable and tappable. Drill and tap. Then reharden by replacing the temper. To do this, heat it up cherry red again, then drop it into cool motor oil. Quench it, as they call it. This restores the temper and hardness. IF you attempt this, wear eye protection and be wary since there is a violent reaction when you quench it. Spatter, splatter, sizzle.

#3. How would you be sure that your holes were perfectly centered? It has to run true you know?

I was thinking mike could make us an adapter, not modding an existing gear. BTW the thread is up.