RCCrawler Forums

EddieO · 05-25-2011, 01:06 PM

Skewed arms are a hell of a lot easier to wind than a 5 segment........and they don't look like a blind guy did it when yer done......

Lower copper what? The amount of copper on a skew is pretty much identical...I measured it out to the regular blanks and it was within a couple of mm...

Post some pics of your skewed arms, would love to see em...

Later EddieO

JohnRobHolmes · 05-25-2011, 02:07 PM

Skewed arms have less volume perpendicular to the angle of the skew, just like a slanted parking space. While the opening of the slot is the same size, the right angle measurement from the leg is smaller which is important since wire fill is also perpendicular to the skew. Using basic trig, a slanted armature of 10 degrees drops from 5.07mm space to 5mm perpendicular space. Maybe not a huge deal for some wire sizes, but it is an issue.

I don't have any 3 slot skewed arms left, that was years back and I don't keep used up arms. I have some 7 slot ones here still.

EddieO · 05-25-2011, 02:33 PM

Its very little issue on our arms.....all the standard stuff fits....have not tried the HHK wires on everything but most fit too.......so its a moot issue. When trinity released them back with the D5, there was not a single wind we could not do with them......everything fit, even 15 awg on a 7t.

Later EddieO

EeePee · 05-25-2011, 02:49 PM

Quote:

Originally Posted by TEDROCKZ

Took some leg twisting but I finally got him to dig them out.

Leg twisting? Pfff, all I did was ask.

Though I see you got more than one bit, I have a serrated 9 mil bit. (I think it's 9)

The thing works awesome and quickly.

TEDROCKZ · 05-25-2011, 02:54 PM

Quote:

Originally Posted by EeePee

Leg twisting? Pfff, all I did was ask.

You gots pull though!

BTW Eddie the new Team Br00d Apocalypse 5 segments are pretty sweet.

EddieO · 05-25-2011, 03:43 PM

Didn't I send you the fixed unit Eeepee? Or was it the unit with different bits?

Later EddieO

EeePee · 05-25-2011, 04:35 PM

I got a non fixed unit (that sounds funny) and one bit, and I think you said it's the biggest one you had. It doesn't fit between some hoods on some endbells.

TEDROCKZ · 05-25-2011, 04:39 PM

Quote:

Originally Posted by TEDROCKZ

BTW Eddie the new Team Br00d Apocalypse 5 segments are pretty sweet.

Did I mention these were sweet? Ran a couple more packs through them and I'm impressed. Good job Eddie. Now get those winders awinding

TEDROCKZ · 05-25-2011, 04:59 PM

Eddie or whoever, you know what these springs are comparable to. They are off the Kr motors I bought. Copper colored. All 6(motors) are the same...

EddieO · 05-25-2011, 05:05 PM

They are like a 9.5 oz spring....pretty soft for crawling. We only used them for offroad much....too soft for most onroad too.

Later EddieO

TEDROCKZ · 05-25-2011, 05:19 PM

To the can with them......

Quote:

Originally Posted by EddieO

They are like a 9.5 oz spring....pretty soft for crawling. We only used them for offroad much....too soft for most onroad too.

Later EddieO

EddieO · 05-25-2011, 05:35 PM

Bend em and use a fiddlestick dummy....

Later EddieO

TEDROCKZ · 05-25-2011, 05:58 PM

Quote:

Originally Posted by EddieO

fiddlestick dummy

I have just the regular fiddlestick! Not the fiddlestick dummy version.

EeePee · 05-25-2011, 07:20 PM

I've been using 7.0 springs more recently, I don't want that copper getting worn off too quickly.

TEDROCKZ · 05-25-2011, 09:03 PM

Quote:

Originally Posted by EeePee

I've been using 7.0 springs more recently, I don't want that copper getting worn off too quickly.

How is that going to happen? You never run the darned things anymore.

ittybitty · 05-25-2011, 09:28 PM

See...its working!

Ted...and Eddie...tell me something here...

I've read several places that the KR cans are nice for their 4 magnets...providing a nice SMOOTH startup and low speed control. How much different is the drag brake with these cans compared to the standard Brood can? I know the brushes and springs, and just about every part play into this...but assuming you're running as many of the same parts as possible what is the result? Is it negligible?

EddieO · 05-25-2011, 10:37 PM

I guess that depends what you call the standard brood can?

The apocalypse is the same teardown everyone else sells....made by sagami, two magnets, etc etc.

The creep, originally was based on the PT teardown which is very close to a KR, except it has a few more vents ....so a tad less steel....one could argue better low speed and more power than a KR, but slightly less torque and drag brake......all my testing has shown the KR has the same low speed, but better torque and drag brake.

However, I am out of the old PT teardowns.....I had 1000+.....they lasted me about a 18 months....so, I ordered the sagami teardown with quad magnets.....all testing shows it to be very similar to a KR in performance....it is the new creep...

To the naked eye, the new Creep and the Apocalypse will look identical unless you look inside to see the magnets....

Later EddieO

TEDROCKZ · 05-27-2011, 07:53 PM

Quote:

Originally Posted by EeePee

Not so bad as to be on the TV show Intervention, but I was close.

Pretty bad when you start pulling motors of lathes to have something to turn on another lathe. Got 5 lathes here and they are all getting overhauled. Bored!

Crawlernoobie · 05-29-2011, 05:14 PM

Some great light reading in this thread... Not sure how much ill remember tho. Im just wondering if i got in over my head to go brushed

EeePee · 05-29-2011, 05:26 PM

Brushed is the way of the crawler. You can be like the majority and just run the motor and replace it when it fails. Or be like the people that get the idea of this thread and take care of what you have.

05-25-2011, 01:06 PM	#1001
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	Skewed arms are a hell of a lot easier to wind than a 5 segment........and they don't look like a blind guy did it when yer done...... Lower copper what? The amount of copper on a skew is pretty much identical...I measured it out to the regular blanks and it was within a couple of mm... Post some pics of your skewed arms, would love to see em... Later EddieO Last edited by EddieO; 05-25-2011 at 01:14 PM.

05-25-2011, 09:28 PM	#1016
ittybitty I wanna be Dave Join Date: Oct 2008 Location: Sumter Posts: 6,141	See...its working! Ted...and Eddie...tell me something here... I've read several places that the KR cans are nice for their 4 magnets...providing a nice SMOOTH startup and low speed control. How much different is the drag brake with these cans compared to the standard Brood can? I know the brushes and springs, and just about every part play into this...but assuming you're running as many of the same parts as possible what is the result? Is it negligible? Last edited by ittybitty; 05-25-2011 at 09:34 PM.

LinkBacks (?) LinkBack to this Thread: http://www.rccrawler.com/forum/electronics/223989-cutting-motor-commutator-motor-tweaks.html
Posted By	For	Type	Date
Hiilimoottorin kunnostaminen	This thread	Refback	10-04-2011 03:19 PM

05-25-2011, 02:07 PM	#1002
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Skewed arms have less volume perpendicular to the angle of the skew, just like a slanted parking space. While the opening of the slot is the same size, the right angle measurement from the leg is smaller which is important since wire fill is also perpendicular to the skew. Using basic trig, a slanted armature of 10 degrees drops from 5.07mm space to 5mm perpendicular space. Maybe not a huge deal for some wire sizes, but it is an issue. I don't have any 3 slot skewed arms left, that was years back and I don't keep used up arms. I have some 7 slot ones here still.

05-25-2011, 02:33 PM	#1003
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	Its very little issue on our arms.....all the standard stuff fits....have not tried the HHK wires on everything but most fit too.......so its a moot issue. When trinity released them back with the D5, there was not a single wind we could not do with them......everything fit, even 15 awg on a 7t. Later EddieO

05-25-2011, 03:43 PM	#1006
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	Didn't I send you the fixed unit Eeepee? Or was it the unit with different bits? Later EddieO

05-25-2011, 04:35 PM	#1007
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	I got a non fixed unit (that sounds funny) and one bit, and I think you said it's the biggest one you had. It doesn't fit between some hoods on some endbells.

05-25-2011, 04:59 PM	#1009
TEDROCKZ I wanna be Dave Join Date: Jan 2008 Location: Arat Alabama Posts: 2,678	Eddie or whoever, you know what these springs are comparable to. They are off the Kr motors I bought. Copper colored. All 6(motors) are the same...

05-25-2011, 05:05 PM	#1010
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	They are like a 9.5 oz spring....pretty soft for crawling. We only used them for offroad much....too soft for most onroad too. Later EddieO

05-25-2011, 05:35 PM	#1012
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	Bend em and use a fiddlestick dummy.... Later EddieO

05-25-2011, 07:20 PM	#1014
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	I've been using 7.0 springs more recently, I don't want that copper getting worn off too quickly.

05-25-2011, 10:37 PM	#1017
EddieO I wanna be Dave Join Date: Apr 2007 Location: Arlington, Washington Posts: 2,303	I guess that depends what you call the standard brood can? The apocalypse is the same teardown everyone else sells....made by sagami, two magnets, etc etc. The creep, originally was based on the PT teardown which is very close to a KR, except it has a few more vents ....so a tad less steel....one could argue better low speed and more power than a KR, but slightly less torque and drag brake......all my testing has shown the KR has the same low speed, but better torque and drag brake. However, I am out of the old PT teardowns.....I had 1000+.....they lasted me about a 18 months....so, I ordered the sagami teardown with quad magnets.....all testing shows it to be very similar to a KR in performance....it is the new creep... To the naked eye, the new Creep and the Apocalypse will look identical unless you look inside to see the magnets.... Later EddieO

05-29-2011, 05:14 PM	#1019
Crawlernoobie Rock Stacker Join Date: Oct 2010 Location: Edmonton, Alberta Posts: 51	Some great light reading in this thread... Not sure how much ill remember tho. Im just wondering if i got in over my head to go brushed

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05-29-2011, 05:26 PM	#1020
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	Brushed is the way of the crawler. You can be like the majority and just run the motor and replace it when it fails. Or be like the people that get the idea of this thread and take care of what you have.

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