Hack-a-Thon: Power Supply edition

[Kevin "Roofus"]

We're going to be holding a Hack-a-Thon on Sunday January 17th at 2pm.  Many of us will be converting PC power supplies to bench supplies, either to donate to the eventual Workshop 88 space, or for ourselves. 

You DO NOT have to be a member to participate in the project or come to the Hack-a-thon.  So please, tell your friends!  The cost of the parts for each power supply you'd like to convert will be due to our treasurer at our next public meeting 01/04/2010.  You are responsible for bringing your own power supply to the Hack-a-thon to convert.

If you'd like to participate, the project is going to cost about $11 (shipped) per power supply, if we order for 20 or more. The cost doesn't go down much further because I donated about 16 switches I have laying around because they're one of the more expensive components. All components I picked are RoHS compliant (so they're as environmentally friendly as they can be).

A lot of the tools can be shared, people should mark theirs somehow since we'll all be going home with our own.

Tools we'll need

• Soldering irons (as many people as possible should bring their own)
• Drills
• Metal Drill bits 1/4" 1/2" 5/32" (stepper bits are great for this)
• Metal files
• Compasses/stencils and pencils (for drawing component layouts onto cases)

Other supplies

• Your spare AT or ATX power supply for converting
• Wire (we should get plenty from the power supply itself
• electrical tape, shrink wrap, or wire nuts
• Ty-wraps (2 per supply should be enough)
• Solder
• A cord for your power supply

And as mentioned at the meeting if you want to bring another project to work on that's great, just keep in mind Jay graciously volunteered his house, so let's keep it reasonable.  Those interested in attending will be given an address and directions at our next meeting (or upon request if you cannot make it).

Please post below with the # of power supplies you'll be buying parts for at the next meeting.

Let me know if I've missed anything, and I'll add it to the post.

http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=f7b5d434a0

And as requested here's a pretty basic schematic: http://www.mbeckler.org/powersupply/

[Kevin "Roofus"]

I'm in for 2.

Also could one of our all powerful admins move this post to the Events forum?  I failed and put it in the wrong section.

[Brannon]

Also could one of our all powerful admins move this post to the Events forum?  I failed and put it in the wrong section.

Done.

[Colfaxmingo]

Is there some kind of schematic for this project?

Also, the cart at mouser looks like you are planning on making a toaster.  Are there missing components that I'm not able to see?

[Russell Lankenau]

I've got a whole bunch of switches.  Do they need to be SPDT or with SPST work?  I've got both, in super-classy old-school styles.

-Russ

[Kevin "Roofus"]

I've got a whole bunch of switches.  Do they need to be SPDT or with SPST work?  I've got both, in super-classy old-school styles.

-Russ

As long as they have an on and off state they'll work, I just figured double throw are what people are used to.

[Kevin "Roofus"]

Is there some kind of schematic for this project?

Also, the cart at mouser looks like you are planning on making a toaster.  Are there missing components that I'm not able to see?

We're actually converting PC power supplies to bench supplies, which is something I forgot to mention in the post.  I wrote it with the assumption that the people reading it were at our last meeting.  I'll fix that right away!

[Russell Lankenau]

I've got a whole bunch of switches.  Do they need to be SPDT or with SPST work?  I've got both, in super-classy old-school styles.

-Russ

As long as they have an on and off state they'll work, I just figured double throw are what people are used to.

Cool.  I wasn't sure if the project required SPDT for two modes or something.  Looks like SPST should be fine.  I'll bring both and people can choose which ones they want to use. 

I also have some stuff donated by one of the guys at work: 3 drums from a Rock Band drum set, a window motor from a car window, some other stuff.  All up for grabs at the hackathon.

[Brannon]

Linked this topic to the calendar.

B

[gwlorence]

I just noticed that this was on the forum-specific calendar, but not calendar.workshop88.com.  So now it is.

[Russell Lankenau]

One of these days we'll have a unified calendar system...

[itwasally]

Can't wait for the hack-a-thon. Me and Chris are planning on bring a bag of random goodies. If anyone would like to donate a power supply to me I would really appreciate it otherwise I plan on tracking one down this week.

[adam]

I just talked to Jay, he says he has an extra power supply, give me/him the heads up if you're still needing one.

[itwasally]

That would be great. Thanks a lot.

[boredboy]

Hello All,

I just found out about the group. I can bring 2 power supplies (one to share with someone in need).