You can go the route of picking up a stencil from somewhere like oshstencil for ~5$ or you can wing it and dab on the solder paste. One sort of 'hidden cost' with SMD is the solder paste and how you apply it. I have found that development cost for testing out new module ideas and such have gone down drastically simply because SMD parts are so ridiculously cheap, and the small board sizes make them insanely cheap (<1$ a board from oshpark WITH shipping!) I must say that if you have the time to full out DIY an oven, it really is not that hard at all! And once you have an oven, you can do full SMD boards without a problem. As mentioned above, I also need to open the door to get the correct cooling profile, but I am in the process of putting a cheap piezo speaker in the oven to notify me when todo so. All in all it works extremely well and will reflow a board in 3-4min. I have found that in all It could be built full DIY for <50$! I am still working on the software side of mine, as I took off the rotary switches the oven came with, put in rotary encoders, and hacked in an old nokia phone screen to display temp and program in new profiles. I have one that I built from a cheap 10$ black and decker toaster over I found on craigslist, an arduino, and a k-type thermocouple. There's a vid of a guy doing that too (it's at the end of the vid) I have tried that method using just my multimeter and stop the oven 10 secs after the reflow temp (215ÂÂÂ☌ in my case) and open the oven slightly after that for a few min then totally open for the rest of the cooling stage. I think it's even possible to get rid of the controller, my oven warms up so slowly that the preheat stages are done naturally. You'll have to tweek the profiles with any solution you choose anyways. is a professional Reflow Oven and Wave Soldering Manufacturer in Shenzhen, China. Use a good multimeter to compare the temp with what the controller says. About Us: Shenzhen Jaguar Automation Equipment Co., Ltd. Get an oven with infrared tubes that can go to 250ÂÂÂ☌ easily and fast. More info Low to Medium Volume 1800HT Conveyor Reflow Oven Conveyor reflow solder oven with 50' (1270mm) long heating tunnel for low to medium volume surface mount assembly. The problem is that there is not a lot of options in diy. GF-125 Five Zone Benchtop Reflow Oven Five (5) zone horizontal convection PCB reflow oven with 56' (1423mm) long heating tunnel for medium-volume or high-mix assembly. Not what i was wishing for but it does the job. I had to tweek the reflow curve quite a bit to be more exact and now it's working ok. When i compare with my fluke 87V it's like 20 °c over so the first tries to reflow something ended up in burned boards. Main problem is that the temperature the controller gets is not the good one. I can't really recommend it although it works.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |