Al Stand Offs: Where do you buy yours?
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Posts: 46,084
I am looking for some Aluminum stand offs for my robotics project.
Preferably an assortment of varying lengths... Does anyone have a
good source that is reasonably priced???
Karl
Preferably an assortment of varying lengths... Does anyone have a
good source that is reasonably priced???
Karl
Comments
karl_g_martin@h... writes:
> I am looking for some Aluminum stand offs for my robotics project.
> Preferably an assortment of varying lengths... Does anyone have a
> good source that is reasonably priced???
>
> Karl
<A HREF="http://www.allelectronics.com/">All Electronics Corp - Parts and
Supplies/New and Surplus</A>
<A HREF="http://www.goldmine-elec.com/">The Electronic Goldmine</A>
[noparse][[/noparse]Non-text portions of this message have been removed]
want the threaded ones. If you can live with a spacer they come cheaper.
Original Message
> I am looking for some Aluminum stand offs for my robotics project.
> Preferably an assortment of varying lengths... Does anyone have a
> good source that is reasonably priced???
I use the standoffs from Digikey.
I use the . 250 hex size to mount PC Boards. The type with 2 threaded holes
work best.
I have used the ones with the threaded stud but they snap off too easy.
Alan Bradford
Plasma Technologies
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<karl_g_martin@h...> wrote:
> I am looking for some Aluminum stand offs for my robotics project.
> Preferably an assortment of varying lengths... Does anyone have a
> good source that is reasonably priced???
>
> Karl
I get them from Jameco. seems everbody has them.
But, I also use left overs from PC's. when you get a PC board, there
are a few used as motherboard stand-off's.
the cheapest way is to get some 4-40 screws and a spacer. a plastic
BIC pen body or something.
Dave
http://www.allelectronics.com/cgi-bin/category.cgi?category=577&item=SP-90&type=\
store
-John
Its much easier (and cheaper) to find inch hardware at most stores. 4-40 and
6-32 are the most common sizes for hobby stuff.
Original Message
> Not sure what Digikey gets for them, but this seems cheap enough:
>
>
http://www.allelectronics.com/cgi-bin/category.cgi?category=577&item=SP-90&t
ype=store
I found that #4-40 hardware is easier to work with.
#4 screws will go through a 1/8 inch hole -- which is
the hole most PC boards seem to come with.
It's easy to mistake for 3mm -- the size is very close,
but the threads are different enough to need tapping.
Radio Shack sells a 3mm kit, which I have used on
occasion just because it has screws and stand-offs
together.
--- In basicstamps@yahoogroups.com, Rodent <daweasel@s...> wrote:
> One problem -- those are metric thread -- 3mm.
>
> Its much easier (and cheaper) to find inch hardware at most stores.
4-40 and
> 6-32 are the most common sizes for hobby stuff.
>
>
Original Message
>
>
> > Not sure what Digikey gets for them, but this seems cheap enough:
> >
> >
> http://www.allelectronics.com/cgi-bin/category.cgi?
category=577&item=SP-90&t
> ype=store
Thanks, I didn't notice that [noparse]:)[/noparse]
-John
At 06:28 PM 5/18/2003 -0500, you wrote:
>One problem -- those are metric thread -- 3mm.
>
>Its much easier (and cheaper) to find inch hardware at most stores. 4-40 and
>6-32 are the most common sizes for hobby stuff.
>
>
Original Message
>
>
> > Not sure what Digikey gets for them, but this seems cheap enough:
> >
> >
>http://www.allelectronics.com/cgi-bin/category.cgi?category=577&item=SP-90&t
>ype=store
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
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the longer length spacers are not threaded all the way through. This is
usually not a problem until you want to do something different, such using a
long screw through your base and a standoff, then securing the circuit board
with a nut. The same thing applies when you want to cut a standoff to make
it shorter.
One other thing to consider is some standoffs have a very large diameter
compared to the screw they use. If you get metal standoffs, this can have
some unwanted side effects such a shorting out traces or component leads
near the mounting hole. I smoked a brand new LCD this way. I have seen more
than one manufacturer use the same diameter spacer for 4-40, 6-32 and 8-32.
Our preference is the hex standoffs, because they can be tightened using a
small wrench or nut driver, rather than boogering up the surface with a pair
of pliers. The also look cool.
Original Message
From: "John Walton" <john@l...>
To: <basicstamps@yahoogroups.com>
Sent: Sunday, May 18, 2003 7:15 PM
Subject: Re: [noparse][[/noparse]basicstamps] Re: Al Stand Offs: Where do you buy yours?
> **REMOVE FROM CART**
>
> Thanks, I didn't notice that [noparse]:)[/noparse]
>
> -John
>
>
> At 06:28 PM 5/18/2003 -0500, you wrote:
> >One problem -- those are metric thread -- 3mm.
> >
> >Its much easier (and cheaper) to find inch hardware at most stores. 4-40
and
> >6-32 are the most common sizes for hobby stuff.
> >
> >
Original Message
> >
> >
> > > Not sure what Digikey gets for them, but this seems cheap enough:
> > >
> > >
>
>http://www.allelectronics.com/cgi-bin/category.cgi?category=577&item=SP-90&
t
> >ype=store
> >
> >
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> >from the same email address that you subscribed. Text in the Subject and
> >Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
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>
>
different materials (ceramic) that you won't find elsewhere --
www.mcmaster.com
Dennis
Original Message
From: Rodent [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8OGh0z0gLRvvtSC_iqndpOxgP6yCyXhO9t3Am7o8R95RGZCqoMm4LHRtgDAtpfVn6sF6lAMPXr-GZA]daweasel@s...[/url
Sent: Sunday, May 18, 2003 4:29 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Re: Al Stand Offs: Where do you buy yours?
One problem -- those are metric thread -- 3mm.
Its much easier (and cheaper) to find inch hardware at most stores. 4-40
and 6-32 are the most common sizes for hobby stuff.
Original Message
> Not sure what Digikey gets for them, but this seems cheap enough:
>
>
http://www.allelectronics.com/cgi-bin/category.cgi?category=577&item=SP-
90&t
ype=store
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
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The nice thing about Digikey, Jameco, and JDR Microdevices is that they do
not have a minimum order. If you want one they will sell you one. (I think
Digikey may have a $5 fee if it is less than $25.)
Most of the big guys will not even consider it unless your order is $50 or
more.
Digikey has a good assortment of AL and Nylon spacers. Threaded and just
hollow.
They also have a kit with assorted spacers. IM at home and do not have a
catalog with me, or I would give you the number. Do a search on 'Kits' You
will find lots of neat parts assortments.
Alan Bradford
Plasma Technologies
[noparse][[/noparse]Non-text portions of this message have been removed]
you may need.
Jim
http:/www.geocities.com/jimforkin2003/
Original Message
From: plasmastamp@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=nRGv-siKOowLbbiNu7oWH8JXLYzZXbIB0c4WQk96XVm-yxr9a1uM1xJnRNCYJ7eMR_yPBRaWCleKy2sIUNQ]plasmastamp@a...[/url
Sent: Monday, May 19, 2003 6:33 AM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Re: Al Stand Offs: Where do you buy yours?
About AL Spacers:
The nice thing about Digikey, Jameco, and JDR Microdevices is that they do
not have a minimum order. If you want one they will sell you one. (I think
Digikey may have a $5 fee if it is less than $25.)
Most of the big guys will not even consider it unless your order is $50 or
more.
Digikey has a good assortment of AL and Nylon spacers. Threaded and just
hollow.
They also have a kit with assorted spacers. IM at home and do not have a
catalog with me, or I would give you the number. Do a search on 'Kits' You
will find lots of neat parts assortments.
Alan Bradford
Plasma Technologies
[noparse][[/noparse]Non-text portions of this message have been removed]
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