Search found 396 matches

by Mike6158
Wed Dec 03, 2008 2:53 pm
Forum: General Discussion
Topic: SMD soldering
Replies: 20
Views: 4161

Re: SMD soldering

I use EAGLE. Would you be willing to share your SCH and BRD files? I'd like to see your circuit. I guess I'm not sure what the point would be? It's not a very complicated design... It has less to do with the complexity and more to help us inderstand your OP. Also, other members of this forum use th...
by Mike6158
Fri Nov 28, 2008 5:48 pm
Forum: General Discussion
Topic: SMD soldering
Replies: 20
Views: 4161

Re: SMD soldering

Speaking of lead free solder- In my real job I've run into computer (PC) failures related to lead free solder ]. At least I think it was related to lead free solder. I programmed a control system that uses PC's for the HMI. The control room has problems with H2S in the air (too long to explain) and ...
by Mike6158
Mon Nov 24, 2008 4:12 am
Forum: General Discussion
Topic: SMD soldering
Replies: 20
Views: 4161

Re: SMD soldering

I'm thinking about dusting off some boards that I had made a few years ago and putting them together to see if they'll smoke or work A big reason for why I didn't build them that I used SMD components in a few places. I'm curious if these are a kit, or your own design, and if the latter whether you...
by Mike6158
Sun Nov 23, 2008 7:50 pm
Forum: General Discussion
Topic: SMD soldering
Replies: 20
Views: 4161

Well... I guess I'll dive in and see what happens :grin: Thanks for the info. I've got a Weller WES51. Can you suggest a heat range to operate at?
by Mike6158
Sun Nov 23, 2008 12:48 pm
Forum: General Discussion
Topic: SMD soldering
Replies: 20
Views: 4161

SMD soldering

I'm thinking about dusting off some boards that I had made a few years ago and putting them together to see if they'll smoke :shock: or work :grin: A big reason for why I didn't build them that I used SMD components in a few places. Not many... but enough to be really irritating to try to solder to ...
by Mike6158
Sun Nov 23, 2008 11:34 am
Forum: Projects & Kits
Topic: Merry PICmas kit
Replies: 14
Views: 5439

Re: Wonderful wonderful project!

If I had one nit to pick it would be that the top LED should be white :grin: I built one of my trees with a white LED at the top. It is unlikely that white LEDs can be used in the current design, as it runs form only three volts (while on battery power). Most Blue and White LEDs require more than t...
by Mike6158
Sun Nov 23, 2008 3:13 am
Forum: Projects & Kits
Topic: Merry PICmas kit
Replies: 14
Views: 5439

We are so glad we helped you resurrect your soldering skills and give you a chance to show them off for a christmas gift! A forest of trees all blinking does look really impressive. I've had a dozen of the earlier version running . (I don't know the record for who has had the most running at one ti...
by Mike6158
Sat Nov 22, 2008 5:57 pm
Forum: Projects & Kits
Topic: Merry PICmas kit
Replies: 14
Views: 5439

Wonderful wonderful project!

My soldering skills have laid dormant for about 3 years. I resurrected them to build not one but three of Picmas trees. I'm happy to say that all three lit properly on the first try. I wasn't surprised. The kit is well supplied, well described, and the layout is simple. If I had one nit to pick it w...
by Mike6158
Sun Jan 29, 2006 4:32 pm
Forum: General Discussion
Topic: "Perfect" LED current limiting challenge
Replies: 255
Views: 47177

Re: "Perfect" LED current limiting challenge

Originally posted by ROBERT REED: Jimandy Or that tooth you chipped and no power on earth can keep your tongue from rubbing over it! Been doing that for a week now... I didn't chip it very bad. Just enough to keep jacking with it :) <small>[ January 29, 2006, 04:32 PM: Message edited by: NE5U ]</sm...
by Mike6158
Sun Jan 29, 2006 6:21 am
Forum: General Discussion
Topic: "Perfect" LED current limiting challenge
Replies: 255
Views: 47177

Re: "Perfect" LED current limiting challenge

Originally posted by jwax: I've grown to hating this thread since it has brought out the worst in some participants, but here's my contribution- a 87% efficient convertor from Maxim- http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1167 Ditto... but we keep coming back... it must be a "car wreck thing"
by Mike6158
Sat Jan 28, 2006 5:14 am
Forum: General Discussion
Topic: Telescope Dome Controller
Replies: 13
Views: 1992

Re: Telescope Dome Controller

It seems to me that you would somehow want to key the location of the dome opening and rotation of the dome to the direction that the telescope is pointing. I suppose you could manually slew the opening to somewhat line up with the telescope opening and then rotate the dome at a rate that correspond...
by Mike6158
Sat Jan 28, 2006 4:56 am
Forum: General Discussion
Topic: 800+ holes x3
Replies: 19
Views: 3578

Re: 800+ holes x3

Change your designs to use more SMD's
by Mike6158
Sat Jan 14, 2006 7:32 am
Forum: General Discussion
Topic: "Perfect" LED current limiting challenge
Replies: 255
Views: 47177

Re: "Perfect" LED current limiting challenge

How many goofball replies am I supposed to suffer before blowing a little steam?
≈12.906323583200043 ±.000012118843
by Mike6158
Mon Jan 09, 2006 1:41 pm
Forum: General Discussion
Topic: "Perfect" LED current limiting challenge
Replies: 255
Views: 47177

Re: "Perfect" LED current limiting challenge

I've seen how they put chrome in the inside of a frito bag. It's pretty cool. They spray it on under a vacuum. I also watched them make a kajillion of those plastic Walmart bags that usually break about halfway back to the truck. Pretty cool. At one point it looks like a giant condom. Well... giant ...