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Author Topic: DIY reflow oven - suitable UK/EU candidates  (Read 17613 times)

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Offline jmelson

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Re: DIY reflow oven - suitable UK/EU candidates
« Reply #50 on: May 13, 2017, 07:25:55 AM »
I got a Philps P&P machine in 2007 and came up with my own reflow oven scheme.  I got the biggest GE toaster oven they had at our WalMart store.  It will hold a board up to 8 x 11" or so, which I occasionally do.  I got a ramp and soak temperature controller on eBay and some really small thermocouple extension wire.  When I tried to do the reflow with the thermocouple just in the air, it fried the boards black.  So, I poke the thermocouple into a through hole in the board, and it controls the actual board temperature.  I do both leaded and lead-free soldering, and adjust the final temp for the solder being used.  The ramp and soak controller can be set for degrees at start and end of the ramp and time of the ramp.  So, I have it programmed for ramp to 180 C, hold for 1 minute, ramp to desired temp, hold 1 minute, then cool down.

The oven has 4 heating elements that run horizontally, two above the rack, two below.  The elements run the full length left to right.  I made some rectangular rings out of stainless steel rod that sit on the racks.  As I usually have parts on both sides of the boards, I do the backs first (usually just decoupling caps and small passives) then do the top side with the chips.  The wire rings keep the back side components from touching the rack.

I have had very good results with this, and have done over 1000 boards.

Jon
 
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Offline bit.cyber

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Re: DIY reflow oven - suitable UK/EU candidates
« Reply #51 on: June 01, 2017, 06:55:53 AM »
I was able to source the Boom Mat in Europe at a couple of different auto suppliers. Typically high performance / race car accessory suppliers.
Specifically I purchased suitable Boom Mat from TurboZentrum in Berlin, Germany.

There's a related thread which I started detailing my efforts: http://www.eevblog.com/forum/projects/adventures-in-home-reflow-toaster-oven-conversion/msg1177124/#msg1177124

Plus also check out my website with relevant postings: http://lagrangianpoint.net/tag/reflow/
Just hanging around... (And do visit lagrangianpoint.net for the latest interesting projects underway)
 

Offline Podrowski

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Re: DIY reflow oven - suitable UK/EU candidates
« Reply #52 on: November 16, 2017, 10:30:05 PM »
I know this is an older topic, but since it's referred to from the build guide on the Whizzo website it seems like the right place.

Another usable candidate for a reflow oven could be the Rommelsbacher BG950 'Speedy'. I'ts a 10 liter model, slightly bigger than the Steba KB 11. It has a top and bottom quarz heating element for a total 950 watts heating power. It also allows for the tray to be positioned exactly between the elements. It is a little low on power, but it's also quite cheap when buying from German Amazon, so you could buy two and use the heating elements of the second oven to double up on heating power.

Wait... What?
 

Offline ElektroQuark

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Re: DIY reflow oven - suitable UK/EU candidates
« Reply #53 on: November 16, 2017, 10:51:55 PM »
You can see my attempts for a reflow oven HERE.

It uses the Andy Brown reflow controller.
It's a 10 liter one, very small, vey cheap.
You will see how a resistance heating element fails at trying to maintain the correct profile.


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