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Soldering handle hack

by skaxxo on Tue Oct 16, 2012 10:31 am


Im working on my soldering station, its a Lafayette sdd-9.
It works ok but its very hard to find some compatibile tips. The inner diamater its ~6mm!

So i have decide to fit an hakko handle to my solder station.
Its very easy to find this tips...
But i have some problems with the heating element:
The original (of my lafayette) heating element has ~3 Ohm at the sensor line, the hakko has ~ 53 Ohm
I cant find an heating element with this requirements and my soldering station cant control the handle for this reason...

How can i reduce the ohm at sensor line?
Any suggestions?

Arduino, MODs e DIY:
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Re: Soldering handle hack

by richavezy on Fri Oct 19, 2012 5:34 pm

I think you need to go to an electronic shop. :D

I got called down because of the item. brass knuckle and also a knife.
Last edited by richavezy on Thu Oct 25, 2012 6:28 am, edited 1 time in total.
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Re: Soldering handle hack

by skaxxo on Sat Oct 20, 2012 6:15 am

richavezy wrote:I think you need to go to an electronic shop. :D

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Re: Soldering handle hack

by adafruit_support_mike on Sat Oct 20, 2012 10:39 am

A 53-ohm temperature sensor is probably some kind of thermistor.. all resistors lose resistance as they get hotter, and some are calibrated to do it in a very predictable way.

A 3-ohm temperature sensor is probably a thermocouple.. two wires of different metal (copper and steel, kovar and platinum, etc) that generate current when they get hot.

Just telling us the resistances is about as useful as telling us the color of the handle. If you don't know what kind of sensors they are, dig around for documentation and find out. Also look for information about the temperature control circuits in the Lafayette and Hakko control boxes. Those will give you a better idea of whether it's even possible to exchange elements the way you want to.
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.
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Re: Soldering handle hack

by VOYAGERUSA on Sun Oct 28, 2012 12:07 am

My old Archer is same 6 mm - my friend tapped out to take off the shelf tips with a standard tap and also fixed the old ungar pencil to take hunks of 10g wire with threads cut on it ground to sharp point slightly bent to clear the 2mp microscope mounted to the 3rd hand rail-- this copper makes great tips.
Adafruit sells nice ones but this old guy can't throw away something been in use 43 years just because tips are scarce.
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