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Thanks will follow up

Hi all i am looking to buy a long range induction coil type charger , solar powered. 200 mm range or more. This is not for iphone charging , Just to re-charge a small battery. are such devices commercially available? many thanks in advance Sunclipa ( optical eng)

Thats brilliant and most helpful. if only all the users of this site were as helpful a bit less grumpy ps i labelled myself mechanical because there was no optical engineering option. thanks again Sunclipa

Thanks I will follow thia up

Hi are there any other techniques apart from gears to slow down the rpm of a dc motor> this is to drive a small , low weight shutter . Many thanks in advance . Tony Sunclipa

thanks looks good , i will follow up best regards Tony

00.025 nm max torque 20 x 50 mm plastic shutter flap. rotation along the long end thanks Tony

Hi Thanks this is not really my field. My plan was to engage someone to help if and when i found the key device. if it cant fit into the space its would not be a viable product. Fast speed is not needed. 0.5 seconds to switch between the two states would be fine. thanks best regards Tony

yes apologies i think it was in the wrong forum. i can delete that one. best regards Tony

Hi this is not for a solar cell. its for aolenoid which is different technology thanks

Hi i am looking for the smallest possible solenoid , to fit in a 6 mm (diameter) x 14 mm space. Googled this but no luck so far. rotary or push pull type, custom maybe but prefer a stock item. its to swing a 8 gram shutter 0 to 90 degrees. with push pull i would need a mechanism to convert...

Some great leads there . many thanks all.

Hi Just wanted to find the smallest commercially available solar cell or similar , is 5mm x 10 mm feasible for example? it would only need to generate a small amount of power for a low power circuit. many thanks in advance. Sunclipa

thanks will look , smaller would be better

Hi i should explain more i want it to turn to two positions at 90 degrees to one another . time 0.5 second approx between two positions. not my technical area

Hi can anyone suggest electronic means to rotate a small shaft? it has to be less that 5 mm in scalel. shaft diameter 1.5 mm ? load a couple of grams. many thanks Antoine Sunclipa