custom circuit board

kosherbacon · Post by **kosherbacon** » Mon Apr 10, 2006 5:11 pm

i am looking for a custom designed circuit board, does any body know of a place that i can email and they can design and build the circuit board for me, that is also not to evpensive?

thanks

Sparky · Post by **Sparky** » Mon Apr 10, 2006 5:30 pm

no luck with hand wiring the mini chips?

There are some places that will make a board if you provide the file/art work. But getting them to also populate it jacks up the price. They will charge overhead for getting the parts/or storing them if you get them and ship the parts to them.

http://www.olimex.com/pcb/index.html

Sparky · Post by **Sparky** » Tue May 30, 2006 1:01 am

Bumpity bump bump. . .

We are looking into getting some of the stuff to do simple custom boards, did you find a solution or are you still in need of some elctrconic junk for the model trunk.

kosherbacon · Post by **kosherbacon** » Tue May 30, 2006 9:12 pm

im still having some trouble with the small 4060 so any ideas that you have to make it easier (that is also cheap) please tell me

en'til Zog · Post by **en'til Zog** » Wed May 31, 2006 2:03 am

Since I have big fingers and rebuilt eyes (literally) I leave the SMT (surface mount thingies) to Sparky and board fab houses. I just use the 16 pin standard 'DIP' pack and wire wrap.

If you have the eyes and hands (and a microscope) GO FOR IT!

Sparky · Post by **Sparky** » Wed May 31, 2006 7:22 am

Ok, I'm trying to get a hold of the H200 laminator that was used for making circuit boards. I'll try to make up alittle piece of art work for a simple 4060 and put one together.

Meanwhile I'll try to scratch something and take some build up pics. . .

macfrank · Post by **macfrank** » Wed May 31, 2006 12:46 pm

Sparky wrote:Ok, I'm trying to get a hold of the H200 laminator that was used for making circuit boards. I'll try to make up alittle piece of art work for a simple 4060 and put one together.

It looks like the new version of the H200 is the H210. Still $100 at Staples.

kosherbacon wrote:im still having some trouble with the small 4060 so any ideas that you have to make it easier (that is also cheap) please tell me

Tricks for home SMT work:

1 - a good soldering iron with as fine a tip as you can find. I have a nice (and cheap) temperature controlled soldering iron that works well, but even a cheap pencil soldering iron will work, as long as it has a very fine tip.

2- Very fine solder and a good solder sucker

3- A good magnifying glass or an Opti-visor (or both)

I carefully pre-tin the PCB pads with some solder (the solder sucker comes in handy here) then tack down the SMT part over the pads with a glue that'll hold it in place. I've tried Blu-tack, white glue and hot glue. CA would not be a good choice, unless you're an eye-hand coordination god and can place the device squarely over the PCB pads on the first try. The trick is to use as little glue as possible - you don't want the glue to get onto the pads.

Once the SMT part is in place, carefully heat each pad to reflow the solder.
Check each pad and make sure that he pad is soldered (not just touching the pad) and that you don't have a solder bridge between pads.

I've soldered a Maxim Max1595, which is a small 8 pin voltage regulator that generates either 3.3V or 5V from 1.8V to 5.5V. It's in an 8 pin uMAX package, with pads that are 0.01" wide on 0.0256" centers. It was hard, but not impossible.

Frank

kosherbacon · Post by **kosherbacon** » Wed May 31, 2006 8:43 pm

i dont have any pcb's im just trying to wire a smt 4060 with out one and im having some trouble. is there a place that has pcbs for smt 4060's? if so, do tell. if not and you have a suggestion on how to make it easier (besides the stuff previously mentioned) please keep in mind that i am a young modeler and cant speend much money.

macfrank · Post by **macfrank** » Wed May 31, 2006 9:02 pm

kosherbacon wrote:i dont have any pcb's im just trying to wire a smt 4060 with out one and im having some trouble. is there a place that has pcbs for smt 4060's? if so, do tell. if not and you have a suggestion on how to make it easier (besides the stuff previously mentioned) please keep in mind that i am a young modeler and cant speend much money.

You have a 4060 in an SMT package and you're trying to convert it to a DIL package? Why not just get a 16 pin 4060 DIP? There are adapter boards Like this one but it'll cost you a lot more than a 4060 DIP.

DO you have a schematic? Is it online?

Frank

kosherbacon · Post by **kosherbacon** » Thu Jun 01, 2006 4:41 pm

i got most of my information from the article here on ssm by Clyde Jones

Sparky · Post by **Sparky** » Thu Jun 01, 2006 4:46 pm

He wanted the smaller foot print, I think he's trying to squeeze it in a small kit.

Madman Lighting · Post by **Madman Lighting** » Sat Jun 03, 2006 8:03 am

The best way of all to do SMT soldering work is to stencil print solder paste onto a board, place the part, then reflow the entire thing in a hot air oven. Thats how the pros do it and I see it all day long at work.

However, getting there requires a bit more than the average hobbyist has just sitting around.....

You need a metal stencil with precision cut holes for the paste, solder paste which is powdered solder in a gooey resin flux, a squeege to press the paste thru the stencil onto the board, and a convection oven to reflow the board set to 450 F.

If you're just trying to wire up a few SMT parts, try "SurfBoards" from Digikey. They're small circuit boards with SMT footprints for standard parts that come out to bigger pads you can work with more easily.

-John C.

kosherbacon · Post by **kosherbacon** » Sat Jun 03, 2006 2:18 pm

what i think i am going to want to do is put some blinking lights into a model of a tie fighter and an x-wing but sice i cant get them to work yet i dont know what im going to do. im thinking that i am just going to give up on the smt tingies and buy bigger ones. thats what i meant to do in the first place but i ordered the wrong things and tried to get them to work but i cant. sodoes anybody know where i can get some 4060 that are a resonable size??? i already have the right varriable resistors and capacitors all i need it a 4060 that i can get to work.

Madman Lighting · Post by **Madman Lighting** » Sat Jun 03, 2006 9:07 pm

Here....

http://www.digikey.com/scripts/DkSearch ... 21&Site=US

Its a plain old 16pin DIP 4060. No surface mount.

-JC.

kosherbacon · Post by **kosherbacon** » Sun Jun 04, 2006 7:42 pm

can you post another link?
i clicked on it and it said "Your dataset has expired. Please search again."

thanks

Madman Lighting · Post by **Madman Lighting** » Mon Jun 05, 2006 4:59 pm

OK, how about this:

http:\\www.digikey.com

when the main page comes up, type this in the search box:

"CD4060 DIP"

When I did it I got a choice between two items, first one is what you want. The mfg part number is CD4060BE and its in a DIP package. I suggest you buy more than you need, DIP packages are fast becomming not just obsolete, but out of stock as well.

-John C.

kosherbacon · Post by **kosherbacon** » Mon Jun 05, 2006 7:55 pm

thanks!
i found it and i will make sure to get some when ever i get enough cash

Sparky · Post by **Sparky** » Fri Jun 30, 2006 11:42 am

Is there any interest in a generic 4060B board? Something to check lighitng patterns and or use in a model? What configuration would you want, variable resitor on the board or just pads/holes to use a fixed resistor or remote wired variable resistor. Resistor pads for LED on the board, or do we assume the LED's have resistors in line according to your power supply.

DLMatthys · Post by **DLMatthys** » Wed Sep 20, 2006 11:59 am

Yes there is an interest...and a board should be etched for a DIP chip conections. Easy for the fat fingured folk like me. I'm never pleased with wire wrap solutions. The leads off the 4060 chip functiones are explained for the end user depending on the pin out funtions. The end user can soldure to the pad then run his wire off of the board to his little blinky thingy. Plus have pads off the side of the chip to fit resisters, pots and caps.

I raise mine hand to make it so...well at least the etching. Schematics are needed and art for the copper foil paths would be a plus.