Re: RE: Re: Generally accepted good winding technique?

From: <Warthodson_at_aol.com>
Date: Tue, 8 Oct 2013 22:46:58 -0400 (EDT)

Kang,
Thanks. It is reassuring to know not everything is an exact science.
Gary


-----Original Message-----
From: ykleetx <ykleetx_at_gmail.com>
To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
Sent: Tue, Oct 8, 2013 6:28 pm
Subject: RE: Re: [Indoor_Construction] RE: Re: Generally accepted good winding technique?



  
    
                  

I haven't tried to extrapolate the max torque. Anything over the predicted maximum is a gift, and I have refrained from looking at it too closely :)
 


---In Indoor_Construction_at_yahoogroups.com, <indoor_construction_at_yahoogroups.com> wrote:


Thanks Kang & Bill.
I see where I got mixed up on the Max torque formula.
Using Kang's 5/99 example, the adjustment for Max turns is simple. Just multiply the calculated Max turns by 1.07. Even I can figure that one out!
How do you calculate the adjusted Max. Torque for 5/99? I assume it is not a simple linear relationship.
Gary H


-----Original Message-----
From: William Gowen <wdgowen_at_...>
To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
Sent: Tue, Oct 8, 2013 12:30 pm
Subject: Re: [Indoor_Construction] RE: Re: Generally accepted good winding technique?


 
  
    
                  
        Those are also the formulas I use.
      
        
On 10/8/2013 12:42 PM, ykleetx_at_... wrote:
    
    
 
                       
            
The formulas I use:
            

            
            
max turns = motor_length * 45.67*SQRT (motor_length / motor_weight )
            
            

            
            
max torque =( motor_weight / motor_length / 0.11)^1.5
            

            
            
These are used only as guidelines as different batches behave differently.
            

            
            
For my 7/99, the max turns is very accurate. For my 5/99, I can get a 7% more turns.
            

            
            

              
              ---In Indoor_Construction_at_yahoogroups.com, <indoor_construction_at_yahoogroups.com> wrote:
              
              
                  
Bill,
                  
I think the formula you are using for Max Torque is:
                  
Max Torque =((motor weight in grams/0.11)^1.5)
                  
Am I correct? What formula are you using for Max turns?
                  
Thanks,
                  
Gary H
                  
-----Original Message-----
                    From: wdgowen <wdgowen_at_...>
                    To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
                    Sent: Fri, Oct 4, 2013 2:36 pm
                    Subject: [Indoor_Construction] RE: Re: Generally accepted good winding technique?
                    
                    
                      
                                                 
                          
                            
                              
                                
For 2 grams(net) x 20" the formulas I use show 2880 turns max and .87 in-oz max.
                                
                                

                                   
                              
                            
                          
                        
                      
                    
                  
                
            
          
                          
    
  
    
             

  




    
             

  
Received on Tue Oct 08 2013 - 19:47:00 CEST