Yay! New toy
#61 Re: Yay! New toy
I'm seriously tempted to get my own reflow oven, this is the same type as I've been using, borrowed from a mate.
https://www.ebay.co.uk/itm/125816349984 ... media=COPY
https://www.ebay.co.uk/itm/125816349984 ... media=COPY
Sorry, I couldn't resist!
#62 Re: Yay! New toy
I would be very interested in how you got on with that. Been thinking about this for some time (years). The one you linked to has a load of (I assume are still true) fixes on the net about making them reliable. Did you mate have to do mush if anything to it to make it usable?Ray P wrote: ↑Wed Nov 15, 2023 9:18 pm I'm seriously tempted to get my own reflow oven, this is the same type as I've been using, borrowed from a mate.
https://www.ebay.co.uk/itm/125816349984 ... media=COPY
That's what puts me off, the uncertanty. I quite like the idea of a thermally controlled clothes iron being used as a controlled hot plate.
I also look at these, much more money, but are they just the same as the ebay one with a higher price tag?
https://www.fortex.co.uk/product/rf100- ... flow-oven/
You can see why I am still using hot air.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#63 Re: Yay! New toy
Nick, I've messaged him to check if it is the same model - certainly looks similar - and whether he needed todo anything to it. I know when first delivered it had broken tubes (poorly packed) but not sure what else he did. The couple of times I've borrowed it I've had no issues with the soldering results - you'll have seen some of the pictures I've posted previously.
The oven you linked to seems to be able to take much larger PCBs so is probably worth the extra if you need that capability.
I've looked before at converting domestic ovens for reflow - there are kits and instructions around but I've not progressed it because of having access to my mate's oven, but he's changed job and is doing more of his own project boards so it's more difficult to borrow it nowadays, especially now I've dispensed with my car...
The youtube video you linked is interesting and I've not come across it before but, coincidentally, I have used a sandwich maker hot plate to pre-heat boards before using the hot-air gun to reflow the solder - it certainly speeds up the reflow stage, which can't be bad. A handy feature of the sandwich maker is that it has a rim that captures any round components you manage to blow off the PCB. I have an iron here that works fine except for a leak from the steam-ironing reservoir (after it was dropped) so I may give that project a look as I think I have everything here except for the arduino stuff, of which I have no experience.
Anyway, I'll let you know what my mate says about his experience with 'fixing' his oven.
Sorry, I couldn't resist!
#64 Re: Yay! New toy
I had a reply from my mate regarding his reflow oven and any modifications he might have made.
Thats the same one as mine indeed!
I did, i added a quieter fan and took all the masking tape(!!!) away from the heating elements. Id recommend 1" kapton tape as a replacement.
There are also thermocouple mods online to get more even heating of the hot zone.
I also loaded firmware from github onto it from a swedish company, which works great. The stock UI is crap. You may need an STlink or something to do the programming if memory serves.
Sorry, I couldn't resist!
#65 Re: Yay! New toy
OK, thanks for that Ray.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#66 Re: Yay! New toy
Hi Tony, maybe a new project? Looks interesting. I'll read through the content later.
https://www.diyaudio.com/community/thre ... st-7272403
https://www.diyaudio.com/community/thre ... st-7272403
Sorry, I couldn't resist!
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#67 Re: Yay! New toy
That looks very interesting, thanks for the suggestion!
#68 Re: Yay! New toy
Why did they use a bunch of logic gates for the output devices? Would have though real mosfets would have been better and allow more that 1.5W output into 8R.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#69 Re: Yay! New toy
I've not properly read through the thread yet Nick but you're going to be much better equipped to understand it than I am anyway. It does seem to be very much a work in progress.
Sorry, I couldn't resist!
#70 Re: Yay! New toy
Nick, I noticed this upgrade to the reflow oven on ebay - just in case it's of interest.
https://www.ebay.co.uk/itm/193624000200 ... SwPh5ZJV1D
Sorry, I couldn't resist!
#71 Re: Yay! New toy
Yes, interesting. Does make it a £600 pound oven though or £900 for the version with the work done from the same people.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#72 Re: Yay! New toy
Indeed, not a trivial cost uplift, but I guess still competitive in comparison with the general marketplace. DIY would be the obvious approach but it's justifying the outlay for a hobby that would only make occasional use of it.
Sorry, I couldn't resist!
#73 Re: Yay! New toy
Well. you could go into production PCB soldering Nick
https://www.ebay.co.uk/itm/305237742655 ... media=COPY
http://avipre.com/products/machine//Ref ... 20Oven.pdf
Sorry, I couldn't resist!
#74 Re: Yay! New toy
I might have problems with the 40-50A supplies.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#75 Re: Yay! New toy
I think you would have a problem fitting it on a shelf too! I was being tongue in cheek BTW.
Sorry, I couldn't resist!