Cycle computer from Wilko used as Rev counter

[The Merry MillerParticipant @themerrymiller]

I know this was dicussed some time ago but I can’t find the original thread.

 

After fitting the AS-11G cycle computer, did anybody finally establish what the RPM range was?

 

The instructions quote up to 300 rpm which is inadequate for a lathe or mill.

 

I need to know before I take the item back to Wilko’s.

 

[The Merry MillerParticipant @themerrymiller]

[Roderick JenkinsParticipant @roderickjenkins93242]

I’ve had mine up to 3200 rpm. The resolution is quite poor at this speed, it goes up in steps of 20 or 30 rpm but I don’t consider that to be an issue, the resolution is quite good enough for me.

cheers,

 

Rod

[Michael Cox 1Participant @michaelcox1]

I have checked mine against a commercial hand held photo reflective tachometer and it is accurate up to at least 2200 rpm (the max speed of my lathe).

Mike

[The Merry MillerParticipant @themerrymiller]

 

Thanks for that info lads,

 

I’ll set mine up over the weekend.

 

Len P.

[The Merry MillerParticipant @themerrymiller]

Well it was all set up today and for the benefit of those lucky people with a Tom Senior M1 mill with a seperate vertical head with quill feed these are the readings I obtained.

 

The drive motor was O.5 HP 4pole and 1420 nominal RPM.

 

The head had a four step poly-vee drive and the readings were taken after 15 sec wait for stabilisation at each step.

 

Results in RPM:

280

500

900

1680

 

Thanks to those who recommended the Wilko AS-11G cycle computer.

 

Len P.

[Author]

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