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Re: [rsa] Brushless alternative to Brushed Dewalt/HF Motors   Message List  
Reply | Forward Message #1859 of 1989 |
Re: [rsa] Brushless alternative to Brushed Dewalt/HF Motors

Brushless motors are generally designed for long term and efficient applications.  Drill motors are designed for short term intermitent operation, high torque, and are not very efficient.  Which is probably why it is hard to find similar brushless motors of the same physical size delivering the same torque that a drill motor provides.  Also, high current, reversible, speed controllers for brushless motors are hard to find and build.  Also, they are considerably more expensive than brushed motors.
 
Another place to look at is www.aveox.com 
 
Pete
 
 
 
 
 
 
----- Original Message -----
From: D K
Sent: Monday, December 04, 2006 9:18 PM
Subject: Re: [rsa] Brushless alternative to Brushed Dewalt/HF Motors

Hey Pete,

I currently have dewalts and I want to swap them out.
The advantages that the brushless has over brushed
are just what I want

Most brushless that I have seen,
are twice the size and weight of the dewalt
just to get the same performance.

I was curious to see if there is a brushless equivalent that
matched the dewalts.

Thanks,
Dennis

----Original Message Follows----
From: "Pete Miles" <robots@walkingrobots.com>
Reply-To: sfrsa@yahoogroups.com
To: <sfrsa@yahoogroups.com>
Subject: Re: [rsa] Brushless alternative to Brushed Dewalt/HF Motors
Date: Mon, 4 Dec 2006 17:28:25 -0800

I am curious, why is it so important to have a brushless motor?

The only ones that I am aware of that has some serious power (for the
hobbiest) are the Astro 040 Brushless Motor www.astroflight.com

Pete

----- Original Message -----
From: D K
To: sfrsa@yahoogroups.com
Sent: Monday, December 04, 2006 12:17 PM
Subject: [rsa] Brushless alternative to Brushed Dewalt/HF Motors

Thanks guys.
I like harbor freight as well.

But I'm pretty sure that their drill
motors are brushed.

I'm looking for a "brushless" equivalent to
the brushed Dewalt/Harbor Freight motors.

Cheers.
Dennis

----Original Message Follows----
From: "Andy del Hierro" <andy.delhierro@gmail.com>
Reply-To: sfrsa@yahoogroups.com
To: sfrsa@yahoogroups.com
Subject: Re: [rsa] Dewalt Motors
Date: Sat, 2 Dec 2006 08:09:16 -0800

I buy most of all my tools for work from Harbor Freight. That have a
great
warranty and good selection. Yah there cheap but there cheap ;).

Andy

On 12/2/06, Camp Peavy <cpeavy2@yahoo.com> wrote:
>
> FYI: Harbor Freight has a retail outlet in Newark:

>http://www.harborfreight.com/cpi/ctaf/retail_stores.taf?f=detail&Retail_Store_ID=38
>
>
>Camp
>
>*David Calkins <dcalkins@robotics-society.org>* wrote:
>
> I've used the dirt cheap $29 18V's from Harbor Freight. They're
>certainly not as good as the Dewalts, but they do well for pushing a
>robot around.
>
>Quoting D K <dktkd@hotmail.com <dktkd%40hotmail.com>>:
>
> > Hello Everyone,
> >
> > I was wondering if anyone familiar with dewalt drill motors,
> > know if there is a comprabable brushless motor with
> > the same size, performance and available gearbox..
> >
> > I'm looking to replace the 18 V Dewalts/gearbox that I have used
before.
> >
> > If you are not familiar with the dewalts this website has some info.
> >
> > http://www.robotmarketplace.com/marketplace_dewalt.html
> > http://www.robotmarketplace.com/marketplace_mechanical.html
> >
> > Thanks,
> > DK
> >
> > __________________________________________________________
> > Get the latest Windows Live Messenger 8.1 Beta version. Join now.
> > http://ideas.live.com
> >
> >
> >
> > SF robot meetings are at 7PM on the first Wednesday of the month at
> > SFSU's Science bldg - 1600 Holloway, room SCI 256.
> >
> > http://www.robotics-society.org/images/sfsu_map.gif
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
>

--
Andy del Hierro
Gamekiller
To mod or not to mod?

To be one ask one?
/}
@#####{G]::::::::::::::::::::::::::::::::::::::::::::::::>
\}

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Tue Dec 5, 2006 6:18 am

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Message #1859 of 1989 |
Expand Messages Author Sort by Date

I am curious, why is it so important to have a brushless motor? The only ones that I am aware of that has some serious power (for the hobbiest) are the Astro...
Pete Miles
ajklz5
Offline Send Email
Dec 5, 2006
1:25 am

Hey Pete, I currently have dewalts and I want to swap them out. The advantages that the brushless has over brushed are just what I want Most brushless that I...
D K
dktkd@...
Send Email
Dec 5, 2006
5:22 am

Brushless motors are generally designed for long term and efficient applications. Drill motors are designed for short term intermitent operation, high torque,...
Pete Miles
ajklz5
Offline Send Email
Dec 5, 2006
6:51 am

Have you looked at www.hackerbrushless.com? They are expensive, but have good torque from zero rpm up. Just don't over current or over heat them. Using PWM...
David Flynn
k240dave
Offline Send Email
Dec 15, 2006
4:55 am
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