Author Topic: A conversion chart for scratchbuilders  (Read 1092 times)

Offline Piltdown Man

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A conversion chart for scratchbuilders
« on: April 26, 2012, 08:55:36 AM »
This may be of some help: 1/32 Conversion Chart

The instructions for use are on the last page. I can also supply the "source" document, that is if people want it. This will enable you enter in a scale and have the appropriate conversions performed. That is, if I remember where I left it...

Hope it helps,

Trevor

Offline pepperman42

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Re: A conversion chart for scratchbuilders
« Reply #1 on: April 26, 2012, 04:46:33 PM »
Now THAT is handy dandy. Was confused at first but then the instructions/examples clarified it. Thanks!!!

Steve
I was clean,shaved and sober and I didnt care who knew it.

Offline Chris Johnson

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Re: A conversion chart for scratchbuilders
« Reply #2 on: April 26, 2012, 09:52:49 PM »
Thanks for posting this. A very handy tool.

Cheers,

Chris
You can have it good; You can have it fast; you can have it cheap. Pick any two, but all three are impossible.

Offline Des

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Re: A conversion chart for scratchbuilders
« Reply #3 on: April 26, 2012, 10:21:48 PM »
Doing my Voisin scratch build I have had to do a lot of calculations, this chart will be very useful for the remainder of the build, thank you Trevor for posting .

Des.
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Offline Jose Chaica

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Re: A conversion chart for scratchbuilders
« Reply #4 on: April 27, 2012, 08:35:08 AM »
Thatīs helpful! Thanks.  :)
Jose Chaica, from Portugal.

Offline Piltdown Man

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Re: A conversion chart for scratchbuilders
« Reply #5 on: April 28, 2012, 08:51:29 PM »
I've now found the "live" excel file. All you have to do is change the value of cell D2 to the denominator of the scale you are working in. Anyway, here is the MS Excel conversion file.

Hope it helps,

Trevor
« Last Edit: April 28, 2012, 08:53:07 PM by Piltdown Man »

Offline ALBATROS1234

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Re: A conversion chart for scratchbuilders
« Reply #6 on: May 03, 2012, 12:29:38 PM »
very cool, but what about drill bits above #80 is there dimensions somewhere for those? the smallest bit i have is a #86 my guess is its about .1mm. also what does ba represent? i will use this chart thanks for sharing.

Offline Piltdown Man

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Re: A conversion chart for scratchbuilders
« Reply #7 on: May 04, 2012, 08:22:05 AM »
Ah...  I'm very sorry I don't have dimensions for drills smaller than No.80. To be honest, I thought the system stopped at 80. But I now find it continues up to No. 97. If I find out what the numbers are, I'll put them in. As for BA, it stands for British Association. Basically it was our attempt at 'metrification' but using imperial measurements. Nowadays it's only really used in the small nuts and bolds used by modellers.

Trevor