I've a couple of flasks here is it on the smallest. Its at the slowest speed, any faster and it throws the bar so I'm considering using a 9v supply instead of 12.
http://youtu.be/BsBOK5WLLZI
Been making a stirplate
Re: Been making a stirplate
No need to change the supply voltage. I made one and put a pc fan speed controller like a Zalman fan mate II (about 3 quid on eBay) before the motor.
Allows you to alter the speed really easily.
Allows you to alter the speed really easily.
60 percent of the time it works every time.
Re: Been making a stirplate
Get a really strong magnet inside the stir bar, this was biggest issue I had. I ordered various ones from eBay sellers until I found one that never got thrown off until silly speeds.