Help needed for setting up string action

luizhmax

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I had this R9 that came with a perfect action set up and now I want to replicate in another guitar. How do I translate this card into metric system (mm)?
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E.T.

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How do you know what units the measurements are in?!?
 

strayedstrater

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It's traditional in the US to give action measurements in 64ths of an inch; 5/64", 3/64", 2/64", 1/64". I'll let you do the conversion to metric. (If "5" meant "5mm" that would be crazy high, "5/32" is very high, "5/132" would be crazy low, so it pretty much has to mean 5/64".)

But I assume you'll be using a metric ruler or metric feeler gauges to set up the other guitar? It would be more accurate to use that to measure your R9 and then use those measurements to set up your other guitar.

Reason being that 64ths of an inch isn't super-accurate. If the low E is actually 11/132" or 9/132", the guy in the factory is just going to write 5/64", not "a hair under 5/64"" or "a hair over than 5/64"".
 
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Brek

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I also wondered about what units were used in those leaflets. 1mm and 2mm at the nut end sounds reasonable, but 5mm at the 12th? does not compute.
 

luizhmax

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Guitar was bought in the US so it’s definitely NOT metric! Don’t have the guitar anymore to measure it in metric… that’s why the need for help with this card…
 

luizhmax

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It's traditional in the US to give action measurements in 64ths of an inch; 5/64", 3/64", 2/64", 1/64". I'll let you do the conversion to metric. (If "5" meant "5mm" that would be crazy high, "5/32" is very high, "5/132" would be crazy low, so it pretty much has to mean 5/64".)

But I assume you'll be using a metric ruler or metric feeler gauges to set up the other guitar? It would be more accurate to use that to measure your R9 and then use those measurements to set up your other guitar.

Reason being that 64ths of an inch isn't super-accurate. If the low E is actually 11/132" or 9/132", the guy in the factory is just going to write 5/64", not "a hair under 5/64"" or "a hair over than 5/64"".
You assumed right. I have a metric gauge. The R9 was sold a while back and I never measured it…
 

luizhmax

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It's traditional in the US to give action measurements in 64ths of an inch; 5/64", 3/64", 2/64", 1/64". I'll let you do the conversion to metric. (If "5" meant "5mm" that would be crazy high, "5/32" is very high, "5/132" would be crazy low, so it pretty much has to mean 5/64".)

But I assume you'll be using a metric ruler or metric feeler gauges to set up the other guitar? It would be more accurate to use that to measure your R9 and then use those measurements to set up your other guitar.

Reason being that 64ths of an inch isn't super-accurate. If the low E is actually 11/132" or 9/132", the guy in the factory is just going to write 5/64", not "a hair under 5/64"" or "a hair over than 5/64"".
Thank you for the explanation! it makes a lot of sense.
 

strayedstrater

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1/64" = 0.397mm
2/64" = 0.794mm
3/64" = 1.19mm
5/64" = 1.98mm

Those are all pretty normal "moderately low" action settings. 4/64" low E and 2/64" high E are "low to very low" action.

The first fret measurements won't change very much when you raise/lower the bridge. Those mostly tell you how low the nut slots were cut. So if you set the low E to 5/64" at the 12th fret (top of fret to bottom of string), if the low E is more than 2/64" at the first fret you'll need to file the nut slot lower.

64ths are very crude large measuring units at the first fret, so chances are very high that the R9 wasn't exactly 2/64" and 1/64" at the first fret.
 
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luizhmax

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1/64" = 0.394mm
2/64" = 0.794mm
3/64" = 1.19mm
5/64" = 1.98mm

Those are all pretty normal "moderately low" action settings. 4/64" low E and 2/64" high E are "low to very low" action.

The first fret measurements won't change very much when you raise/lower the bridge. Those mostly tell you how low the nut slots were cut. So if you set the low E to 5/64" at the 12th fret (top of fret to bottom of string), if the low E is more than 2/64" at the first fret you'll need to file the nut slot lower.

64ths are very crude large measuring units at the first fret, so chances are very high that the R9 wasn't exactly 2/64" and 1/64" at the first fret.
That's awesome! it was a very low action set up. Very clarifying! Thank you sir
 

strayedstrater

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There was a typo -- 1/64" is 0.397mm, not 0.394mm. Doesn't really matter, but if you can measure that accurately I don't want to mislead you.
 


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