Does anyone own a...?

[Herb G]

Digital Laser Photo Non Contact RPM Tachometer?

How accurate are they?
I'd like to know how fast my lathes actually turn vs. the advertised speed in the owner's manual.

Thanks for any help.

Almost forgot the LINKY.

[Lumber Yard®]

I have dual (contact, non-contact) and even the cheapies appear to work fine IME.

Dual Tach

[Fisherman]

I have used Strobes, when I worked on Diesel Truck/ Transport Reefers. Pretty simple very accurate. Don't own one, used to borrow one from a vendor that did our starters, pumps rebuild etc...

[JR1]

They can be great or a PITA. It depends on the reference that they will use. Note that they want you to buy reflective tape. That should make measuring easy and give perfect accuracy—well unless there is a similar reflectivity somewhere else on the shaft.

[daddo]

I've used the Fieldpiece one for many years. They have changed now but are very accurate.




I think this is the newer model. http://www.ebay.com/itm/Fieldpiece-SPRM1...rmvSB=true

[BloomingtonMike]

I own a couple. Got them free with orders from somewhere. Work fine for me checking Gcode and spindle speeds. Nothing critical counting on them.

[Wipedout]

I'll probably regret asking this but wth....

Any particular reason you need to know?

[doobes]

Wipedout said:

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I'll probably regret asking this but wth....

Any particular reason you need to know?

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What's wrong with you?

[Herb G]

doobes said:

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[blockquote]Wipedout said:

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I'll probably regret asking this but wth....

Any particular reason you need to know?

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What's wrong with you?

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[/blockquote]
+1.

[daddo]

Wipedout said:

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I'll probably regret asking this but wth....

Any particular reason you need to know?

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You mean you've never set your lathe at 700 rpm and wondered if it were going just 690 rpm? I'm shocked!

I have to admit- I've tested all of mine. None were as advertized, but it made no difference anyway.