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[OM] Re: XA won't open after refoaming

Subject: [OM] Re: XA won't open after refoaming
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sat, 12 Apr 2008 06:52:31 -0400
Thanks.  I'll forward your info.

Chuck Norcutt

Moose wrote:
> Chuck Norcutt wrote:
>> It's not clear that any glue was used.  I think twine was pressed into the 
>> door grooves... common before foam.  Not sure what else was done.
>>   
> There is indeed foam on the latch end of the door, between the fixed 
> latch piece and the 'L'of he door end. The end of the body presses 
> gainst it as the door is closed.
> 
> The latching pieces are quite thick, sturdy pieces of steel, sort of out 
> of character with the task of keeping a light, plastic door closed.
> 
> If the foam replacement is too thick and/or too stiff, it would be 
> possible for a firm squeeze to allow the latch to snap shut. Yet under 
> the excessive outward pressure, the friction between the latch parts 
> could be enough to make opening it by simply pulling on the rewind knob 
> seem like it requires more force than is safe for the knob.
> 
> First thing I'd do is squeeze the back and the end of the body together 
> at the opening end, then pull on the rewind knob with that pressure 
> applied. You can easily see how much pressure is needed by looking at 
> the space between the end of the door and the body on the outside of the 
> latch. Twine would be a wrong choice for this use, as it doesn't provide 
> the springiness required.
> 
> On one with original foam, there is a small gap about the thickness of 
> two sheets of paper at the bottom and tapering thinner toward the 
> middle. Pressing the parts so there is no gap takes little pressure on 
> this one. With that pressure applied to the end of the back, the knob 
> comes out most of the way with no resistance, then pulls out about 
> another ~2mm against light spring pressure. The latch is then completely 
> disengaged, although I'm still holding the door closed.  If I then let 
> the knob go, the latch is re-engaged without opening the back.
> 
> So it's possible to differentiate between the latch being stuck and 
> something else holding the door closed.
> 
> Moose
> 
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