Topic: Howconvert a metric drawing to inches.

[sailfl]

I have a drawing that was drawn in metric I need to conver it to inches.

Please tell me how to do that.

Thanks

[JCTER]

Short answer:  Scale all by 25.4 or change your dimension scale to reflect inch measurements of a metric model, by scaling primary units by 25.4 or adding alternate units with a 25.4 scale.  Whichever fits the situation better.

[sailfl]

James,

I understand what you told me but my problem is that I don't use AC 2006 that much and I usually don't have to change drawings.  But I need to be able to do this more often, so I need some directions.

Thanks

[JCTER]

James,

I understand what you told me but my problem is that I don't use AC 2006 that much and I usually don't have to change drawings.  But I need to be able to do this more often, so I need some directions.

Thanks

Select all objects:
SCALE
<pick base point of reference to scale objects about>
25.4 (scale factor)
Done.

[MP]

*blink*

To go from metric (mm) to imperial (inches) wouldn't you scale by the inverse of 25.4, or 0.03937007874015748?

[JCTER]

*blink*

To go from metric (mm) to imperial (inches) wouldn't you scale by the inverse of 25.4, or 0.03937007874015748?

*facepalm*

Yes.  I was all flip flopped on my direction of scaling, there.

Or as I do it, scale by 10/254

[MP]

Thanks. I read and then re-read the original question about half a dozen times because I thought I must be misinterpreting it to want to use the inverse.

[sailfl]

I have decided that there must be some thing else set because I am not getting what I want.  Because I can not share the file as is but I can delete some things and share a small part, I have another problem I need help with.

I can not look at the complete file.  I move toward the bottom of the file and I can not continue.

How do I see the comlete drawing?

Once I can look at the complete drawing, I will modify and post a copy of the drawing with a part.

Thanks

[JCTER]

when you come to the limit of what you can see, hit "regen" and then continue panning around.

[sailfl]

Thanks for the Regen.  That works great.

Here is the drawing with a few items left.

Thanks for you help.

[JCTER]

If you need it in INCHES then:

SCALE entire drawing by 10/254

Turn off SNAP (F9)

Using the dialog reached via the UNITS command, change your units from decimal to fractional, with a precision more suiting to your needs, like 1/32 or 1/16 or whatever.

The dimensions will be huge, but you that may not be a problem, depending on your purpose.

Are you just trying to take measurements from this drawing?  Are you trying to use the geometry for CNC programming, or what?

[sailfl]

James,

I need the drawing in a 1:1 format in inches so I can cut it on my CNC machine.

Thanks
Nils

[Krushert]

*blink*

To go from metric (mm) to imperial (inches) wouldn't you scale by the inverse of 25.4, or 0.03937007874015748?

*facepalm*

Yes.  I was all flip flopped on my direction of scaling, there.

Or as I do it, scale by 10/254

Slick!
Got to try to remember that one if and when I ever get a metric drawing.

[JCTER]

*blink*

To go from metric (mm) to imperial (inches) wouldn't you scale by the inverse of 25.4, or 0.03937007874015748?

*facepalm*

Yes.  I was all flip flopped on my direction of scaling, there.

Or as I do it, scale by 10/254

Slick!
Got to try to remember that one if and when I ever get a metric drawing.

Yea, I only learned that a few months ago  I was always whipping out the calculator and dividing 1/25.4 (since you can't do a decimal in a fraction in Autocad) and an engineer saw me doing that one day and gave me that tip.  Brilliant!  That works in a -lot- of situations, actually, I've found.

[MP]

For the uninitiated -- you can supply appropriate lisp statements to most command prompts -- for example, when prompted for scale you can simply enter (/ 1 25.4).