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Post by tom on Feb 23, 2008 21:06:12 GMT -5
If you are either a serious brewer, TCer, fungi cultivator, home scientist, you surely thought at least once that having a stir-plate would be a blessing (at least I do!). I found these links tonight and what quite surprised of the simplicity of the build. Ok, it's not a heating stir-plate, but its cheap enough to be convenient for making a yeast starter (for beer brewers) or a liquid culture vessels (for TCers). I must admit the electrical scheme is a bit out of my 'expertise' but it seems somewhat simplist anyway. Enjoy brewiki.org/StirPlatepeople.iarc.uaf.edu/~cswingle/brewing/equipment/yeast_stirrer.phpP.S. its happens that i have a an old HD laying around (for the magnet), a muffin fan and some plywood... should try to do it (with someone else's (simon?) help with the electronic part) somewhere soon
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Post by lloyd on Feb 24, 2008 0:13:40 GMT -5
The electronics are pretty easy, I even have the parts around. You could also use one of the variable wall warts for a crude speed control. I'm working on my thermal fan control circuit which includes a software (computer controlled) fan speed control.
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Post by tom on Feb 24, 2008 8:32:43 GMT -5
Just being curious, do you have a reference website or a PDF that i could use to learn the basics on how to make something like this myself? I don't mind asking for help, but would love to learn how and be able to realize few simple projects on my own...
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Post by lloyd on Feb 24, 2008 9:47:41 GMT -5
I know from your LFH that your carpentry skills are better than mine. So I guess you want the electronic skills on the fan control circuit. I'll be happy to help you as much as you want. Soldering is the chief limiting factor because it requires a few tools and a certain learning curve.Too bad you aren't in Toronto-you could come over and I could teach you. But there are lots of on-line tutorials. www.curiousinventor.com/guidesThis site is great. I didn't know how to solder the newer super-tiny components and they had a very helpful video. Let me know what you need. Even better: you make me a LFH (I'll pay.) and I'll do your electronics! :-)
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Post by tom on Feb 24, 2008 10:50:47 GMT -5
Thanks Lloyd for the link. I have a 'pyrocarver' (hot tip to 'carve with burning' on wood which might help soldering but it should lack precision though.
As for the LFH, we would have to find a used fan somewhere. I dont have the tools here (last time i made it at Isabelle's parents house), neither have much time these days but i'll keep this offer in mind. Otherwise, yoou can usually made the wood cut at Rona lansing and others hardware store for a small fee, just have to say the dimensions of the cut. I'm far from being a carpenter, i can barely use anything else than a hammer and a screwdriver hahah
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Post by lloyd on Feb 24, 2008 11:37:25 GMT -5
I was only (half) kidding about the LFH.
You will need to buy a dedicated soldering iron and a few tools and supplies but they are really very reasonable to buy at Circuit City. If it's just one of those LM317 circuits you need, I can easily make one. If you are really going to get into making simple circuits, though you should start on your soldering and breadboarding skills.
PM or email me for any details you need.
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Post by simon on Feb 24, 2008 19:27:11 GMT -5
Hey Tom!! I think i have everything you need. Let me know if you need something.
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Post by dToad on Dec 6, 2011 17:06:06 GMT -5
I use similar technology to mix reagents for biofuels.
Rather than a stir bar, I'm using stainless steel ball bearings to mix it up. I don't know if this would be compatable with TC.
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