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- etmh commented on voltlog's instructable Building a Spot Welding Machine From a Microwave Oven Transformer
- etmh commented on jprussack's instructable How to Dry a Cell PhoneView Instructable »
Wasn't my intention at all, and I sorry if it was construed that way. I don't think it's a loose connection at all (especially since jprussack asked specifically for the force calculation). By spinning something around like this a force (greater than the force due to gravity) will be in effect on the water droplets allowing the surface tension to be overcome. Effectively, the water becomes 25 - 30 times heavier than normal.
- etmh commented on jprussack's instructable How to Dry a Cell PhoneView Instructable »
If I recall correctly, the force is mass × angular velocity squared × radius. More interesting would be the acceleration (ignore the mass) - as this could be compared with acceleration due to gravity (9.8) to see how many times more effective this would be than 'drip drying'.
- etmh commented on scihouse's instructable Receiving Images From Passing Weather Satellites (NOAA and METEOR M2) Using a Cheap SDRView Instructable »
Absolutely fascinating! I've been considering learning about SDRs, so to see a usage including both the hardware and software side is great.
- etmh favorited DIY Servo Motor by vu2aeo
- etmh commented on 3CarrotsOnAStick's instructable Wiper Motor and Arduino Mega ServoView Instructable »
Very interesting instructable. Do you happen to know what torque you can achieve with this particular motor?
- etmh favorited EEZYbotARM by theGHIZmo
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Thanks for a great description, I've been thinking of doing something similar for quite a while and have the electronics and transformer. Do you have any idea if it's possible to use multiple windings of thinner wire in parallel for the secondary coil (e.g. 15A mains cable)?