Re: DC Motors (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 27 May 2007 09:43:49 +0800
From: westland <westland@xxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: DC Motors (fwd)

Thanks so much Bart ... btw, I have to thank you too for JavaTC as 
well... after trying (I believe) every one of the software TC design 
aids out there, I've concluded that yours is the most useful (though I 
do like the graphs on Antonio Carlos M. de Queiroz' programs).  But 
JavaTC has been the best tool for experimenting and understanding what 
I've got.  Kudos

Chris

Tesla list wrote:
> Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Fri, 25 May 2007 18:09:39 -0700
> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: DC Motors (fwd)
>
> Hi Chris,
>
> No problem. Just contact me when your ready. I've had nearly 20 people 
> wanting several each, but after those are shipped, I will still be 
> loaded with a lot of motors. Once I started digging into the motors, I 
> realized I had much more than I had guestimated.
>
> Take care,
> Bart
>
> Tesla list wrote:
>
>   
>> Original poster: List moderator <mod1@xxxxxxxxxx>
>>
>>
>>
>> ---------- Forwarded message ----------
>> Date: Fri, 25 May 2007 14:29:27 +0800
>> From: westland <westland@xxxxxx>
>> To: Tesla list <tesla@xxxxxxxxxx>
>> Subject: Re: DC Motors (fwd)
>>
>> Hi Bart:
>>
>> I would like to put my name on two of these (I've been looking for a 
>> torquey DC motor, so these fit the bill).  I will be moving to Chicago 
>> in the next two months, so if you wouldn't mind holding them in your 
>> garage for just a little while longer (and I would certainly understand 
>> if you didn't want to) I would be very grateful.
>>
>> Thanks in advance
>>
>> Chris Westland, Hong Kong (soon to be Chicago).
>>
>>
>> Tesla list wrote:
>>  
>>
>>     
>>> Original poster: List moderator <mod1@xxxxxxxxxx>
>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> Date: Tue, 22 May 2007 19:16:35 -0700
>>> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>>> To: Tesla <Tesla@xxxxxxxxxx>
>>> Subject: DC Motors
>>>
>>> Hi All,
>>> I've got a bunch of DC Gear Reduction Motors on hand.
>>> http://www.classictesla.com/temp/gm_2.JPG
>>>
>>> A couple small crates worth (guessing about 100 motors on hand) that I 
>>> was once selling on eBay, but lost interest. I would like now to clear 
>>> out some space in my garage, but I can't see throwing these motors out. 
>>> They are perfect for winding machines.
>>>
>>> So, I'm now offering them for free. If you would like a few (not too 
>>> many as I'd like to make sure everyone that want's one gets one), just 
>>> email me "off the TCML" to my personal email (bartb@xxxxxxxxxxxxxxxx). 
>>> You will need to pay for shipping, but that's all. Contact me off the 
>>> list about payment methods for shipping. USPS flat rate is the cheapest 
>>> and about $8 to anywhere in the US.
>>>
>>> The motors "are" used, but I will hook up each one to ensure it works 
>>> and "sounds" normal. These motors were custom made or a low profile 
>>> application requiring high torque. Their direct from Germany. The motor 
>>> includes an internal clutch which limits the current to about 3.2 amps. 
>>> Thus, you can stall these motors for a brief period without damaging or 
>>> demagnetizing the motor. Of course, the longer they are in a stall 
>>> condition, the more ware that is put onto the clutch. The gear reduction 
>>> is 512:1 and I have a few that are 400:1 (I think). They are designed 
>>> for 24 VDC. The shaft will spin 1 revolution every 8 seconds at that 
>>> voltage. So, really low speed (which is why they are great for winding 
>>> machines). However, they are high torque and that is something to be 
>>> aware of. The motors new are $400 ea., but were purchased in higher 
>>> quantities where the cost was reduced to $100 ea. I'm letting them go 
>>> for free except shipping.
>>>
>>> If you want one, two, three, etc.., just send me an email.
>>>
>>> Take care,
>>> Bart
>>>
>>>
>>>
>>>  
>>>    
>>>
>>>       
>>  
>>
>>     
>
>
>   


-- 
____________________________________________________

J. Christopher Westland, PhD CPA
Professor, ISMT, University of Science & Technology, HK Clearwater Bay,Kowloon, Hong Kong
Tel: 852 2358 7643
Fax: 852 2358 2421
Mob: 852 9528 1745
URL: ihome.ust.hk/~westland
Mobile e-mail: chris.westland@xxxxxxxxxxxx