Electronics > Beginners
Best Re-flow Oven for Hobby electronics
Peabody:
I'm finishing up a project that uses the $10 Walmart hot plate and a $5 circular saw blade as a reflow device for smaller boards. See attached. While I did design a controller, it doesn't need one. You just turn on the power twice during the relfow process for specific periods of time, and it seems to reflow fine with no overshoots, and nothing is scorched. It requires a minor mod to the hot plate. I hope to have a Github repo available, and possibly a video, within a week or so, and will post when that's done in case anyone is interested. It is the lowest cost, simplest system I've seen. I guess larger boards could possibly be done by moving the board around during the reflow process to "share" the center cool spot evenly. And obviously, it doesn't work for boards with SMD components on both sides.
flydrive:
--- Quote from: sairfan1 on February 12, 2019, 02:49:43 pm ---I'm hobbyist, not very extensive user. I found this oven way better than other available options. There are some good users in the thread i hope they will also give their input.
--- End quote ---
sorry but which oven do you mean, there's been a few mentioned in this thread so I couldn't work out which you have.
flydrive:
--- Quote from: Simon on February 12, 2019, 06:19:59 pm ---Mine is made by Huaqi Zhengbag and "Zhengbag" is a good description of the noise my fuse board made when I plugged it in. After taking it apart I improved the earthing fearful for my life and after an argument with them they assured me they were taking my advice about earthing each metal panel and ensuring better clearances. Mine is the ZB2520HL
--- End quote ---
Thanks - I'd seen those but couldn't find one single review anywhere saying whether they were actually significantly different from the T962* series, especially with regards their advertised claim that they are 'convection + IR'. They look similar enough I've been assuming they too just have a 4-bar electric fire at the top and use the fan only for cooling. Clearly they suffer from some of the same build issues.
I already have the toaster oven setup and it's worked just fine for leaded work up to the size the thing fits. However I'm moving onto larger boards, 300x250 or so and some limited BGA work isn't far away. Toaster ovens I have tested which are large enough to take a board that size thus far either don't get nearly hot enough, or don't get there fast enough. They tend to triple the volume and add 50% to the power as far as I can tell. Hence my search for something custom designed for PCB work, even if it's going to require modification.
wilfred:
I found this toaster oven for A$20 at Officeworks. I like it because it is small with the elements closer to the tray than is possible in larger ovens. It is 650Watts. Does anyone have experience with it for reflow? I'll take opinions too. It is super cheap but doesn't hurt to ask first.
Thanks
https://www.officeworks.com.au/shop/officeworks/p/heller-professional-stainless-steel-6l-toaster-oven-hpovt6#reviews
BTW I saw this one at Kew East store.
FriedMule:
I think that the absolute best, non pro, home tinkerer oven, is one with forced air.
The ovens that are more like a toaster with glowing heating-elements is in my opinion, fare from ideal. Try to get a "real" oven, like a combo oven with forced air.
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