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Author Topic: temp controled soldering station from hacks n mods  (Read 9640 times)

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MrDEB

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temp controled soldering station from hacks n mods
« on: May 21, 2010, 14:32:30 PM »
Here is a revised schematic and PCboard design if anyone is planning on building this soldering station.
Anything comprable on the market is $75+

kam

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Re: temp controled soldering station from hacks n mods
« Reply #1 on: May 21, 2010, 16:36:22 PM »
nice job you've done. What is the size of the PCB?

MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #2 on: May 21, 2010, 16:46:40 PM »
board size is 3" x 4"
can reduce to a smaller size if needed.
thinking of reducing to meet express pcb board manufacturing for better price if quantities wanted.

MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #3 on: May 21, 2010, 17:03:28 PM »
reduced the size to 3.80 x 2.50 so the mini mill service price is cheaper.
This is drilled, silkscreened and solder mask
3 boards = $75 plus shipping.
kinda pricy IMO.
maybe have more than one circuit per board then just cut the boards might be cheaper?

kam

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Re: temp controled soldering station from hacks n mods
« Reply #4 on: May 21, 2010, 17:06:17 PM »
I am really looking forward to see your construction and the solutions you give. Get as much space as you like in the forum (Your projects) to upload photos. In case you need to increase the upload limit for large photos, i can do it for you. If you have a website, send me the link for the project worklog. If you make a video with your construction, send me the youtube link.

kam

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Re: temp controled soldering station from hacks n mods
« Reply #5 on: May 21, 2010, 17:07:55 PM »
reduced the size to 3.80 x 2.50 so the mini mill service price is cheaper.
This is drilled, silkscreened and solder mask
3 boards = $75 plus shipping.
kinda pricy IMO.
maybe have more than one circuit per board then just cut the boards might be cheaper?

WOW $75????? Try this link and tell me the price you get. $75!!!!

kam

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Re: temp controled soldering station from hacks n mods
« Reply #6 on: May 21, 2010, 17:09:48 PM »
I get $43.29 (+4 PP) for 3.8x2.5. But, frankly, why don't you make it yourself?

MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #7 on: May 21, 2010, 21:46:42 PM »
I am going to etch myself. Have made alot of boards using the PULSAR toner transfer.
I was just curious in case some more people want to do a co-op buy in (buy several boards for less per board)
I need to order the thermocoupler and 16F88 (I at present only delt with !8Fxxxx using swordfish.
Wait from the free Maxium chips.
Plan is to build two units. One for me and one for a former boy scout that I mentored (he is presently going to ISU majoring in electronics.

kam

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Re: temp controled soldering station from hacks n mods
« Reply #8 on: May 21, 2010, 22:33:58 PM »
Just don't use a 30W iron as i did. Get a 40 or 50 watts with small tip.

MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #9 on: May 22, 2010, 00:41:41 AM »
why not a 30 watt iron.
Thats what I am planning to use but??

kam

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Re: temp controled soldering station from hacks n mods
« Reply #10 on: May 22, 2010, 09:46:23 AM »
it is very slow when heating up. my next project will have a 40 watts (because i can only find 50s with thick tips and thick resistor). It is better for maintaining the exact temperature.

The 30watts also works of course.

MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #11 on: May 25, 2010, 00:04:26 AM »
so many different type K thermocouplers on Ebay.
Looking at 200C, a TC-2 for 752 degrees as well as TC3 for 1292 degrees
these are plastic coated with 32 - 36 inch cables.
Thinking of maybe a blade type fuse holder for a socket to receive the male plug of the thermocoupler? need to look at demensions

kam

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Re: temp controled soldering station from hacks n mods
« Reply #12 on: May 25, 2010, 07:38:11 AM »
This type:
http://cgi.ebay.com/Thermocouple-Sensors-K-Type-Bayonet-Mount-3m-10-/250634992474?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3a5b027b5a
is NOT suitable for this application.

Tis type:
http://cgi.ebay.com/K-Type-Thermocouple-Wire-Digital-Thermometer-TC1-2p-/220611187646?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item335d7393be
Is more suitable. It has this "ball" at the front of the sensor that you may need to cut.

I used thermocouple extension wires and stripped it completely and used only two cores of each wire. If you can find this kind, i think is the best


MrDEB

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Re: temp controled soldering station from hacks n mods
« Reply #13 on: May 25, 2010, 15:03:47 PM »
this is what I am looking at
http://cgi.ebay.com/K-Type-Thermocouple-Wire-Digital-Thermometer-TC1-2p-/220611187646?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item335d7393be
same as you posted.
Going to build two units, one for me and one for the former boy scout that I got interested in electronics to begin with (going to ISU second year)
what do you think of my idea of using PWM to manage the heating better?

kam

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Re: temp controled soldering station from hacks n mods
« Reply #14 on: May 25, 2010, 22:29:50 PM »
PWM is not the proper method. It will probably work, but unless you want to do it for educational reasons, it is too much deal for nothing.  Usually, bursts are used. For example, you keep the power on for 0.5 sec and you turn it off for 0.5 sec. This is the most usual method.

I will give you an idea! Make one with bursts and one with PWM. After all, only a small portion of the PIC firmware will change. Test them both and give us the results! That would be great.