BillFitzmaurice.info

Hi, keen to order plans for various horns, just wondering if they are available in metric measurement? I'm australian and so over the horrible things that pass for enclosures here!

Welcome Keryn.

Keryn wrote: I'm australian ....

It's Ok....we understand.....it wll turn out fine in the end

I feel your pain, but the best option is really to get a few steel rulers with inches on one side and metric on the other. Translating the measurements turn them into really ugly numbers. But you can always display the SketchUp models in metric if so inclined.

G'day Keryn,
And Welcome
Happy Aussie day weekend!

I'm a bit fortunate, I was raised on the cusp of metric and imperial, but I understand.
Go to your local big markets (if you have such a thing lol), buy a 40 inch steel ruler for no more than $30. Now you can do the plans in inches and stop all that conversion issue...

If you turn the ruler over it will be in mm.

Yep, you can use sketchup to go to mm if that's all you know.
However, if you don't know mm and inches:
1 inch = 25.4mm
1/8" = 3.2mm, or .125 inches (err 1 divided by eight = .125)

ps we're not serial killers, please put your location in your profile and a local Aussie might be able to help, or let you get to listen to some of Bill's designs before your own build...

If you get stuck, give me a yell

One of the things that helped with my Jack110Lite Speed Build is the use of a Measuring Stick, aka Story Stick.
Just make absolutely sure that your Measurements are correct because everthing wll be based on it.

When I get around to more cabs, I'll make up one of these all the time.

Hey Keryn, welcome to the forum.
What kind of cabinets are you looking at? Subwoofers, tops or fullrange?

Rune Bivrin wrote:I feel your pain, but the best option is really to get a few steel rulers with inches on one side and metric on the other. Translating the measurements turn them into really ugly numbers. But you can always display the SketchUp models in metric if so inclined.

+1
Hard to find an imperial ruler in the civilized world, but they are out there. As you progress during your build at some point it will start to make sense to you.

I found my steel rulers (and my freedom) at Hornbach. Somehow it makes sense to manufacture these things with both systems, one on each side. That gets you a global product with minimal extra cost.

I even use them with it on both sides. Some things are easier in the metric system. But not all, imperial has some advantages. Mostly I can do it in my head.

FWIW, I think combined resolution and accuracy are easier and quicker in a base 10 metric system, but i also like how Bills plans (at least the few I have) don't use increments of less than 1/8", which makes application of the inch system straightforward.

Harley wrote:It's Ok....we understand.....it wll turn out fine in the end

As outsiders, how do you guys view the human race?

Bas Gooiker wrote:What kind of cabinets are you looking at?

Gday mate, nearly all of them as it turns out!

Bas Gooiker wrote:As you progress during your build at some point it will start to make sense to you.

Still nothing...

LelandCrooks wrote:I even use them with it on both sides.

That was the key for a while at the start to get used to inches, it was like trying to think in another language.

LelandCrooks wrote:I even use them with it on both sides. Some things are easier in the metric system. But not all, imperial has some advantages. Mostly I can do it in my head.

Metric is easier to add and subtract, since it's all decimals and each dimension is ten of the previous. Imperial is easier to divide, since many of the dimensions are based on 12 (or a multiple of 12). This makes divisions by 1/2, 1/3, 1/4, 1/6, 1/8, 1/12, 1/16, 1/24, 1/32 (etc) easy. Sure we leave out 1/5 and 1/7 and 1/9 but I've never needed a seventh or ninth in anything but music chords and the truth is, if you need a fifth of something you're probably going to be drunk very soon and don't need to be using power tools so it doesn't matter anyway.

Use an online converter with your plans at your side and start converting numbers and writing the metric numbers on your plans next to the English measurements. You will have to change things like 24 1/2 to 24.5, 24 3/4 to 24.75 and so on.

https://www.google.com/webhp?sourceid=c ... entimeters

FrankORandle wrote:Use an online converter with your plans at your side and start converting numbers and writing the metric numbers on your plans next to the English measurements.

Or do what it says in the plans and measure the parts in your Sketchup models with the readout in metric.

FrankORandle wrote:writing the metric numbers on your plans

Yep, tried that, got bored of it real quick!

So I just bought

Grant Bunter wrote:a 40 inch steel ruler

and got on with

Bill Fitzmaurice wrote:what it says in the plans

Well, y'no.... I've made a few mistakes ay!

Keryn O'Shea wrote:

Harley wrote:It's Ok....we understand.....it wll turn out fine in the end

As outsiders, how do you guys view the human race? .

With our eyes...