Re: [Shop-talk] Roll crimping an instrument bezel by hand?

[Moose <eric@megageek.com>]

This is a multipart message in MIME format.
--===============4719144952645420715==

This is a multipart message in MIME format.
--=_alternative 003E3D1E85258B75_=

Jim,

Doesn't seem like this would be to hard to fab something up to do this on 
a drill press.  The 'live center' would be the biggest challenge, but I 
can think of a bunch of ways to do it.

Don't forget, this is also an excuse to buy a REALLY helpful tool!  8>)

Moose



From:   Jim Franklin <jamesf@groupwbench.org>
To:     Shop Talk <shop-talk@autox.team.net>
Date:   08/09/2024 14:37
Subject:        [Shop-talk] Roll crimping an instrument bezel by hand?
Sent by:        "Shop-talk" <shop-talk-bounces@autox.team.net>



I need to round over the bezel of a motorcycle speedometer after replacing 
the glass. I've seen it done by lathe:

https://www.youtube.com/watch?v=G2ugiz4xVrU

but my lathe buddy has been saying "this weekend" for over a month. I 
don't have anything bigger than a hand drill at the moment. The bezel 
sticks up about 2mm past the face it needs to crimp over, so not much to 
work with, and that's with one hand compressing the rubber seal. 

I tried rolling a big socket over it to simulate the avove motion but I 
couldn't get the metal to deform at all. I feel if I use more leverage 
like with a tablespoon I'll end up stretching the metal rather than 
shrinking it to its smaller circumference. 

I'm sitting on my hands but if we don't get to it this weekend I'm afraid 
I'll lose it and end up ruining it. Any ideas on how not to ruin it? :-)

thanks,
jim
_______________________________________________

Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk 
http://autox.team.net/archive

http://autox.team.net/mailman/options/shop-talk/eric@megageek.com



--=_alternative 003E3D1E85258B75_=

<font size=2 face="sans-serif">Jim,</font>
<br>
<br><font size=2 face="sans-serif">Doesn't seem like this would be to hard
to fab something up to do this on a drill press. &nbsp;The 'live center'
would be the biggest challenge, but I can think of a bunch of ways to do
it.</font>
<br>
<br><font size=2 face="sans-serif">Don't forget, this is also an excuse
to buy a REALLY helpful tool! &nbsp;8&gt;)</font>
<br>
<br><font size=2 face="sans-serif">Moose</font>
<br>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From: &nbsp; &nbsp; &nbsp;
&nbsp;</font><font size=1 face="sans-serif">Jim Franklin 
&lt;jamesf@groupwbench.org&gt;</font>
<br><font size=1 color=#5f5f5f face="sans-serif">To: &nbsp; &nbsp; &nbsp;
&nbsp;</font><font size=1 face="sans-serif">Shop Talk 
&lt;shop-talk@autox.team.net&gt;</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date: &nbsp; &nbsp; &nbsp;
&nbsp;</font><font size=1 face="sans-serif">08/09/2024 14:37</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject: &nbsp; &nbsp;
&nbsp; &nbsp;</font><font size=1 face="sans-serif">[Shop-talk]
Roll crimping an instrument bezel by hand?</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by: &nbsp; &nbsp;
&nbsp; &nbsp;</font><font size=1 face="sans-serif">&quot;Shop-talk&quot;
&lt;shop-talk-bounces@autox.team.net&gt;</font>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=2>I need to round over the bezel of a motorcycle speedometer
after replacing the glass. I've seen it done by lathe:<br>
<br>
</font></tt><a href="https://www.youtube.com/watch?v=G2ugiz4xVrU";><tt><font 
size=2>https://www.youtube.com/watch?v=G2ugiz4xVrU</font></tt></a><tt><font 
size=2><br>
<br>
but my lathe buddy has been saying &quot;this weekend&quot; for over a
month. I don't have anything bigger than a hand drill at the moment. The
bezel sticks up about 2mm past the face it needs to crimp over, so not
much to work with, and that's with one hand compressing the rubber seal.
<br>
<br>
I tried rolling a big socket over it to simulate the avove motion but I
couldn't get the metal to deform at all. I feel if I use more leverage
like with a tablespoon I'll end up stretching the metal rather than shrinking
it to its smaller circumference. <br>
<br>
I'm sitting on my hands but if we don't get to it this weekend I'm afraid
I'll lose it and end up ruining it. Any ideas on how not to ruin it? :-)<br>
<br>
thanks,<br>
jim<br>
_______________________________________________<br>
<br>
Shop-talk@autox.team.net<br>
Archive: </font></tt><a 
href="http://www.team.net/pipermail/shop-talk";><tt><font 
size=2>http://www.team.net/pipermail/shop-talk</font></tt></a><tt><font size=2>
</font></tt><a href=http://autox.team.net/archive><tt><font 
size=2>http://autox.team.net/archive</font></tt></a><tt><font size=2><br>
<br>
<br>
</font></tt>
<br>
--=_alternative 003E3D1E85258B75_=--

--===============4719144952645420715==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________

Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive



--===============4719144952645420715==--