Autocad: Insert 1:1 Image, Flatbed Scanner, No Scale Change, Measure & Adjust Scales

Hello,
mama scanned the item on a large flatbed scanner to a 1: 1 image. How to now insert such an image into autocad so that I do not have to change the scale, is it possible to measure and change the scales anyway?

rgrosiak When inserting an image (menu: insert / insert reference to a raster image), make sure that the scale is set to 1 (unchecked "specify on screen" box). If the units in the drawing are set to mm, then in the image inserted in this way, the 100 mm segment will have 100 units, and with the cm scale it will have 10 units.
If you care about the high accuracy of the printout in relation to the original, it is worth measuring the distances between the elements you know (when scanning on a large-format - drum scanner, the scan may require calibration. Transverse and longitudinal dimension to the scanning direction, elements separated by the same distance, may be slightly different on the scan).
greetings
bc_107

bc_107 thank you very much for the quick hint, unfortunately this is my first time with autocad, I want to make a relatively simple drawing so I can handle it, but I don't fully understand your "specify marked window on screen".
I noticed that now when I want to paste the image, I press Ctrl + V and then I can use the mouse to set the size of the window where the drawing will be located. The drawing sticks up, but I don't really understand how it relates to the 1: 1 scale, since I can paste this drawing even into a small window. You can explain it to me, I apologize for a lay question, but I do not understand it yet

I do not know what version of AutoCad you are working in (menu: help / information) and in which language version you are using (Polish, English?).
Do not insert the image by "paste" (Ctrl + V), but by "insert reference to raster image" (then the dialog box I described appears where you specify the insertion point and scale).
If you have the English version, look for the "Insert" / "insert raster image" menu.

Autocad 2016 English version, I read from the help menu that it is in the Insert tab and then attach, but the tine is the same as with ctrl-v, it kind of asks me about the scale, I leave 1: 1, then ask for units but on horses yes, I can use the mouse to set the size of the window, so I don't understand it .....

The field responsible for the scale of the inserted image, there should be no check mark (birdie v ) as in the attached screenshot.

Aha, so should I mark it off like this? he will try again

Added after 21 [minutes]:

Ok, I marked it off and indeed, he didn't ask anymore, he just threw me the whole picture right away, but I still don't understand the topic, because if I measure the distance from the picture, it's not 10mm for the hell, maybe I need something in my mouth in ieniac h change.

EDIT
In fact, the picture looks like this, this file is 600MB and I was assured that it is a 1: 1 scan, after pasting the autocad looks like this. I understand that there are errors in the scan, maybe some parts of a millimeter, but after taking the measurement in autocad, it has nothing to do with 1: 1. Somewhere I cannot understand something, I know it is probably simple, but I am a layman, I apologize in advance.


I merged the posts. RADU23

rgrosiak If you can, attach a screenshot of the open program, it will be easier for me to suggest where to look and what to change in the settings. Write what is your main goal, what you do and what you want to achieve ultimately (maybe it can be done in a different way - please give me more information).
greetings
bc_107

Hello,
here is a screenshot with an open program and an uploaded photo.

This is a non-standard distance between the crate and the engine, which I made for myself so far from wood and now I want to outline it in Autocad and burn it with cnc plasma in metal.

I wonder if it's easier to do it in Corel ...

rgrosiak The easiest way to do this is in a program that you know
View the tutorial on setting the units:
https://knowledge.autodesk.com/support/autoca...da6d3-dd8c-4c29-b21e-b9cda14dab39.html?v=2016

hehe, it is true
Thanks for your help, I posted today and everything is OK

Greetings