Perfect fan for stir plate build - with potentiometer - $5 shipped
- Thread starter dirkomatic
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Stealthcruiser
Well-Known Member
Not bad for an I T guy...........
Just got one if these had to go through Amazon since newegg doesn't ship to Canada or freight forwarders. I think I have the wiring figured out but I have two questions. Does the control knob on the speed control come off to mount it through the box? How is everyone mounting the speed control? I am planning on using a cigar box and was thinking about cutting a hole for the speed knob and gluing the metal plate to the back side of the wood.
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microbusbrewery
Senior Member
Yep just pull gently and it'll pull off. The problem is the part it attaches to isn't very long, do if you're planning on sandwiching the cigar box between the bracket and the knob, it might not be long enough. I used a radioshack project box for mine and made the hole just slightly bigger than the diameter of the knob. Then I epoxied the bracket to the inside of the project box.
solbes
Well-Known Member
I used a cigar box from Jo-Ann's ($3 with coupon). Yes its a manly store!
13/32" or thereabouts drill bit and I am able to grasp the knob through the box. I twisted back the 90 degree arm and just taped it with 3M stuff.
13/32" or thereabouts drill bit and I am able to grasp the knob through the box. I twisted back the 90 degree arm and just taped it with 3M stuff.
thepudgeman
Active Member
What power supply are people using for their plates?
I tried a 9 volt battery charger supply I had, it worked great, but after only a few minutes of use the brick got almost too hot to touch. I installed an old cell phone charger that my roommate had that was only 5.5 volts and it worked OK but couldn't create the vortex all the way to the stir bar even with the potentiometer all the way up. I don't want to keep chopping up random power supplies with this. What are the minimum requirements for the power supply output?
I tried a 9 volt battery charger supply I had, it worked great, but after only a few minutes of use the brick got almost too hot to touch. I installed an old cell phone charger that my roommate had that was only 5.5 volts and it worked OK but couldn't create the vortex all the way to the stir bar even with the potentiometer all the way up. I don't want to keep chopping up random power supplies with this. What are the minimum requirements for the power supply output?
microbusbrewery
Senior Member
Sounds like it may have been drawing too many amps for the charger. I'm using a 12v power supply from my junk drawer and it's working great. I can't remember the amperage but I can check when I get home tonight.
microbusbrewery
Senior Member
Here's what I'm using.
thepudgeman
Active Member
It spins...
