stroboscope

[Grimer]

How do I get or make a cheap strobe for measuring the RPM of my wheel?

Cheap = <£100

[ovyyus]

Laser tachometer £12:

https://www.ebay.co.uk/itm/NKTECH-NK-30 ... HQGupn4RCg

[Grimer]

Thanks Bill

https://www.amazon.co.uk/s/ref=nb_sb_no ... Tachometer

I was obviously looking for the wrong thing coz when I looked of digital tachometer instead of stroboscope I got the above which had oodles of tachs.

I'll take you off my ignore list and click your greenie for that. ;-)

[ovyyus]

Hey, what the.... how did you see my post if I was on your ignore list?

That might be the least difficult of my probably ongoing difficult questions :D

[Fletcher]

http://physlets.org/tracker/

[Grimer]

Hey, what the.... how did you see my post if I was on your ignore list?

That might be the least difficult of my probably ongoing difficult questions :D

Good question.

I kept putting it on but when I checked it had gone off. I haven't a clue why.
Maybe single greenies aren't allowed to ignore triple greenies, eh! ;-)

[Grimer]

I ordered a Tachometer from Amazon last night - about £10 (see attachment)

It came this afternoon. Edwin tested it out on the wheel. Seems to work fine.

[eccentrically1]

0.0 rpm, you didn’t need a tachometer to measure that. lol

[Grimer]

Funny man. :-)

That was a photo Prt.Scr.'d off the Amazon website.

[ovyyus]

Yeah, come on ecc, Frank would never take a photo that good.

[Grimer]

LOL - absolutely right. :-)