I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?).
Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish.
Randy
---- Adam Talbot talbotx@comcast.net wrote:
Yes, Please put that on the wiki. VERY COOL idea. -Adam Talbot ron minnich wrote:
can we get this on the wiki? It's a neat approach.
thanks
ron
On 4/10/07, Randall Philipson rtphilipson@cox.net wrote:
I've implemented an idea in an attempt to make hot plugging safer. I imagine it is something that people have already done, but have been too embarrassed to post. ( I, fortunately, have no shame ). It involves taking the little push tacks ubiquitous in the office environment and clipping off the needle point. I then super glue them to the top of my flash (I only recommend this for PLCC. With DIPs, and whatever else, you are probably better off with the chip pullers). Pictures of my experiments are shown here;
http://members.cox.net/rtphilipson/knob1.jpg http://members.cox.net/rtphilipson/knob2.jpg
So far it has been very successful. I have not had a knob fall off (yet). With the PLCC I think this is a much safer way to hotplug than using a chip puller. If I ever do have one fall off, I'll have a future post about recovery techniques :o). The most important point is to shave off the resulting nub left when cutting off the needle point so that you have a flat surface to glue. I recommend a dremel tool grinder. Although I've had success using a scissor blade (takes a long time). If you have a BIOS sticker on top, you'll need to peel that off and clean off the glue thoroughly.
One of the drawbacks is that the chip part number is covered up. If you have several chips types to deal with, this can be a problem. I've implemented a color coding system that works well since I only have a couple of chip types to deal with.
FWIW,
Randy
Randall Philipson wrote:
I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?).
Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish.
I thought about doing something very similar to this, but would there be any issue with the conductivity of the super glue? Especially if any spilled onto the pins? That was the concern that kept me from experimenting with it (and the inclusion of a plcc extractor with my BIOS savior, I was just too cheap to buy one). I've also tinkered around with using toothpicks to remove the chips...bad idea.
BTW, very nice job, and good pics.
-Corey
On 4/10/07, Corey Osgood corey_osgood@verizon.net wrote:
I thought about doing something very similar to this, but would there be any issue with the conductivity of the super glue? Especially if any spilled onto the pins? That was the concern that kept me from experimenting with it (and the inclusion of a plcc extractor with my BIOS savior, I was just too cheap to buy one). I've also tinkered around with using toothpicks to remove the chips...bad idea.
Super glue is no problem for shorting pins. If I am doing a particualrly hairy probe point attachment, or some other rework for debug, I will stiffen any mechanical nightmares with a bunch of super glue. I use the thick stuff, and then hit it with accelerator to freeze it. Epoxy is good for this too, but super glue is instantaneous with the accelerator and actually reversible with the proper solvent.
Also, I have had good luck with part 822154-1 from techni-tool for PLCC extraction. The spring-loaded things are much more prone to busting up PLCC pins. The simple Tyco extractor works pretty well for hot-removal.
I like the concept, but I think I may have a problem... Any ideas? http://www.batbuilds.com/webfolders/problem.jpg :-) -Adam Talbot
Randall Philipson wrote:
I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?).
Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish.
Randy
---- Adam Talbot talbotx@comcast.net wrote:
Yes, Please put that on the wiki. VERY COOL idea. -Adam Talbot ron minnich wrote:
can we get this on the wiki? It's a neat approach.
thanks
ron
On 4/10/07, Randall Philipson rtphilipson@cox.net wrote:
I've implemented an idea in an attempt to make hot plugging safer. I imagine it is something that people have already done, but have been too embarrassed to post. ( I, fortunately, have no shame ). It involves taking the little push tacks ubiquitous in the office environment and clipping off the needle point. I then super glue them to the top of my flash (I only recommend this for PLCC. With DIPs, and whatever else, you are probably better off with the chip pullers). Pictures of my experiments are shown here;
http://members.cox.net/rtphilipson/knob1.jpg http://members.cox.net/rtphilipson/knob2.jpg
So far it has been very successful. I have not had a knob fall off (yet). With the PLCC I think this is a much safer way to hotplug than using a chip puller. If I ever do have one fall off, I'll have a future post about recovery techniques :o). The most important point is to shave off the resulting nub left when cutting off the needle point so that you have a flat surface to glue. I recommend a dremel tool grinder. Although I've had success using a scissor blade (takes a long time). If you have a BIOS sticker on top, you'll need to peel that off and clean off the glue thoroughly.
One of the drawbacks is that the chip part number is covered up. If you have several chips types to deal with, this can be a problem. I've implemented a color coding system that works well since I only have a couple of chip types to deal with.
FWIW,
Randy
On Tue, Apr 10, 2007 at 12:48:34PM -0800, Adam Talbot wrote:
I like the concept, but I think I may have a problem... Any ideas? http://www.batbuilds.com/webfolders/problem.jpg
Sure: http://commons.wikimedia.org/wiki/Image:Sparadrap_2.jpg
Uwe.
On Tue, Apr 10, 2007 at 12:42:24PM -0500, Randall Philipson wrote:
I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?).
Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish.
Great, thanks!
I've added the photos and a short explanation to http://linuxbios.org/FAQ#Chip_removal_tools
Feel free to get an account, though (email Stefan or Ron, see http://linuxbios.org/index.php?title=Special:Userlogin) for further changes...
Uwe.
On Wed, 2007-04-11 at 03:07 +0200, Uwe Hermann wrote:
On Tue, Apr 10, 2007 at 12:42:24PM -0500, Randall Philipson wrote:
I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?).
Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish.
Great, thanks!
I've added the photos and a short explanation to http://linuxbios.org/FAQ#Chip_removal_tools
Cute! I can hear the lead project engineers gagging in the background with this one! lol.
Roger http://www.eskimo.com/~roger/index.html Key fingerprint = 8977 A252 2623 F567 70CD 1261 640F C963 1005 1D61
Tue Apr 10 20:26:34 PDT 2007
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Adam Talbot -
Corey Osgood -
Randall Philipson -
roger -
Tom Sylla -
Uwe Hermann