Rubber cross-section

From: <Warthodson_at_aol.com>
Date: Wed, 18 Sep 2013 11:09:55 -0400 (EDT)

Thanks to everyone who replied to my inquiry on this subject. Your advise has been very helpful.

I agree with Bill that discussing motors in terms of width is not very accurate. Although most people I talk to still use that method, so sometimes it becomes necessary if we want to talk at all.

In general, I understood the concept & have been recording my motor data based upon weight for several years, but was still measuring the rubber width with a micrometer to adjust my slitter. I have not fully made the conversion to cutting test pieces based on weight. But now that I understand how to do it I will convert the next time I slit some rubber.

One comment. It would seem to be necessary to cut the test pieces from the rubber you actually intend to use because the mass (& thickness) will be different in a different batch of rubber. It really frustrates me to waste precious inches of good batches of rubber cutting test strips. I am out of un-cut "good" rubber & am trying to strip previously stripped strips of rubber. Any suggestions on how to minimize the losses?
Gary H


-----Original Message-----
From: William Gowen <wdgowen_at_gmail.com>
To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
Sent: Tue, Sep 17, 2013 2:33 pm
Subject: Re: [Indoor_Construction] Re: Rubber cross-section



  
    
                  

First let me say that this discussion has gone in a direction I didn't intend. My original statement was intended to say that telling another person the width motor that you're using doesn't convey much in the way of useful information. By the same token asking another person what width motor they're using is not going to be very helpful to your own efforts to understand what they are doing. What's important is length and weight and how you arrive at those parameters can certainly be done many different ways.
To answer Gary's question I usually cut 2 or 3 one inch pieces from my unstripped rubber, make a trial cut of one of them with my stripper and weigh the cut piece. If it's not what I want I make an adjustment to the stripper and try again. When I get a piece that I consider correct I'll usually do another trial cut using a 2" piece. If that looks good then I'll cut a piece a little longer than the motor length I want and use the cut piece to make a motor. I don't use anything to measure the width of the strip at any point in the process.
After doing things this way for a couple of years I actually don't know how wide any of my motors are. If you ask me about motor width and you get kind of a blank stare from me then that's the reason.
This is the method I use and it's what I'm comfortable with. It's like a lot of other techniques used in indoor building and flying - there are lots of ways to accomplish any given task and you just have to decide what makes sense to you and what gives you the outcome that you are looking for.
On Sep 17, 2013 1:44 PM, <Warthodson_at_aol.com> wrote:

 
  
    
                  




    
             

  
Received on Wed Sep 18 2013 - 08:09:56 CEST