|
Posted by Bob AZ on July 22, 2008, 12:31 am
Please log in for more thread options
> I still dunno if a guy should have to shim a scope on a supposedly
> decent rifle -- but what the hell, I'm finally having fun with it.
Don
Shims are a way of life no matter what.
I do cameras etc and you would be surprised how many lenses and
cameras are shimmed. And if not shimmed then the assembly parts are
selected which is a form of shimming. There is a form of shimming even
for integrated circuits. Only they call it tweaking.
Bob AZ
|
|
Posted by Karl Townsend on July 22, 2008, 6:14 am
Please log in for more thread options
> Shims are a way of life no matter what.
>
> I do cameras etc and you would be surprised how many lenses and
> cameras are shimmed. And if not shimmed then the assembly parts are
> selected which is a form of shimming. There is a form of shimming even
> for integrated circuits. Only they call it tweaking.
I've been on the recieving end of Don's EE designs quite often... He don't
use shims.(tweaks)
Karl
|
|
Posted by Larry Jaques on July 22, 2008, 7:33 am
Please log in for more thread options On Mon, 21 Jul 2008 21:31:12 -0700 (PDT), with neither quill nor
>> I still dunno if a guy should have to shim a scope on a supposedly
>> decent rifle -- but what the hell, I'm finally having fun with it.
>
>Don
>
>Shims are a way of life no matter what.
>
>I do cameras etc and you would be surprised how many lenses and
>cameras are shimmed. And if not shimmed then the assembly parts are
>selected which is a form of shimming. There is a form of shimming even
>for integrated circuits. Only they call it tweaking.
Shimming an IC? Whuffo?
RE: Cameras, do you do work on the side, Bob? I dropped my Nikon
Coolpix 995 and it lost its focus. When one side is in focus, the
other isn't.
--
Vidi, Vici, Veni
---
|
|
Posted by Jon Elson on July 22, 2008, 1:32 pm
Please log in for more thread options Larry Jaques wrote:
>
> Shimming an IC? Whuffo?
Laser trimming. You burn away a little resistor material to do
the things you used to do on discrete circuits with a trimpot
and a screwdriver. Also, in digital circuits, like memories,
they used to have an extra row or two of memory cells, and a
kind of ROM that can be laser burned to swap in the spare row
for a bad one. This is all done with electronic techniques
today, like flash memory.
Jon
|
|
Posted by Larry Jaques on July 22, 2008, 5:07 pm
Please log in for more thread options On Tue, 22 Jul 2008 12:32:42 -0500, with neither quill nor qualm, Jon
>Larry Jaques wrote:
>
>>
>> Shimming an IC? Whuffo?
>Laser trimming. You burn away a little resistor material to do
>the things you used to do on discrete circuits with a trimpot
>and a screwdriver. Also, in digital circuits, like memories,
>they used to have an extra row or two of memory cells, and a
>kind of ROM that can be laser burned to swap in the spare row
>for a bad one. This is all done with electronic techniques
>today, like flash memory.
Cool! Thanks for the info, Jon.
--
Vidi, Vici, Veni
---
|
| Similar Threads | Posted | | Re: 91 YEAR OLD NEW JERSEY WOMAN RAPED BY 18 YEAR OLD SAVAGE SPIC BEAST | September 14, 2006, 4:57 pm |
| Re: For you O Scope guys | June 3, 2007, 6:43 pm |
| Scope thingy? | May 11, 2008, 12:05 am |
| turret scope mount | June 20, 2007, 1:22 pm |
| Fine Centering Scope | July 18, 2007, 12:14 am |
| Allowable voltages on Scope | March 25, 2006, 9:42 pm |
| looking for plans of turret scope mount | January 24, 2007, 2:04 pm |
| Fine Centering Scope - update | July 28, 2007, 7:31 pm |
| if the nice descriptions can educate at all, the cold scope may dump more headquarterss | August 12, 2007, 11:41 pm |
| OT - US$ 100,000+ per year | August 16, 2006, 6:18 am |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
> decent rifle -- but what the hell, I'm finally having fun with it.