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Satyaveer Singh Rawat , 04-07-2024, 06:25 PM

Dear all please take the reference of youtube video link shared here (https://www.youtube.com/watch?v=wxYbIGV9_CY) It looks to me that top Overlay and Assembly drawing layers are doing the same thing except one looks yellow on Altium PCB library (On Physical green board it is white as I understand) while other looks with different color around components. In fact I can identify the top Overlay on physical board but not sure about identifying Assembly drawing layers on a real physical board. Please help and if possible then share the photo of a physical board distinguishing between the two. For ready reference I am attaching the screenshot of the pictures from the shared video link.

Robert Feranec , 04-08-2024, 06:09 AM

this will help https://www.youtube.com/watch?v=G4MRdRyEdZM

Robert Feranec , 04-08-2024, 06:12 AM

as you can see from the video, assembly layer is especially needed when there are many components on the board

Satyaveer Singh Rawat , 04-08-2024, 09:55 AM

@Robert Feranec Thank you very much sir.

Satyaveer Singh Rawat , 04-08-2024, 11:06 AM

@Robert Feranec Dear sir I am following your this lecture for printing the paper model of my PCB. https://www.udemy.com/course/learn-to-design-your-own-boards/learn/lecture/6230950#overview . Size of my PCB is 360 x 460 mm (Screenshot attached). After following step by step procedure what I am getting is attached herewith and not as the output desired. Please help me to print correct paper model so that I may place component on this and check the correctness of my PCB.

QDrives , 04-08-2024, 01:37 PM

See here another example of production (assembly) documentation.

QDrives , 04-08-2024, 01:39 PM

Are you using a JobFile or just File / Print?

Satyaveer Singh Rawat , 04-08-2024, 04:29 PM

I am using job file

QDrives , 04-08-2024, 08:09 PM

1) The X and Y are the position of the mouse relative to the origin. As I do not see you mouse in the screenshot, the size you indicate may be wrong.
2) What setting do you have for the assembly drawing?

Satyaveer Singh Rawat , 04-09-2024, 05:37 AM

1) Mouse was at the diagonal position (Indicated in attached screenshot), I was also searching for mouse, but it is not appearing while taking screenshot. Size is 360x 460 mm which is larger than A-4 sheet i.e. 210x 297 mm. That I can assure 2) Settings are same (Screenshots attached)

QDrives , 04-10-2024, 07:06 PM

So what is it exactly that you want?
You board is to big to fit an A4 and even A3 paper. So you would need to cut and past (literally with paper and scissors).
Or is it that the layers you get are not what you want?

Satyaveer Singh Rawat , 04-11-2024, 07:01 PM

I have tried that also (literally with paper and scissors) but unable to make a paper model which solves the purpose of checking the correctness of placement of components. Reason is that here are 12 pages in the generated paper model and after printing all those 12 pages, trying to cut from outline and pasting on a large size paper, it is not fixing properly (May be some limitation of printing like some extra paper is left outside the printed area on each paper). ***What Exactly I want: *** I want to print a paper model which can fit in, if not on 1 page then on at least two pages, so that margin of error for cut and paste through scissors reduces and I can check the correctness of placement of components. Can I escape the printing of Bottom layer (So that no of pages reduces), if yes then what I may lose by doing this? I have tried to reduce the size of PCB but still it is 271 x 432 mm ( earlier 360x 460 mm). Please suggest some way out as I need to be confident about the correctness of placement of components, before printing my board. Please help

QDrives , 04-12-2024, 04:09 PM

1) You cannot print 360x460 on A4, A3 or 2xA4, but 2x A3 is possible. A4 297x210mm, A3 is 420x297mm.
2) You 'margins' are big, perhaps you have stuff outside the board area?
3) Alternative is to print to A2 size in PDF and use Adobe reader to print with helper lines.
4) Did you check the pages tab?

Robert Feranec , 04-13-2024, 05:51 AM

I usually use a service to print large drawings. Have a look around if there is a company which can print in large format, often there are (if you cant find one, you can try to ask an advertisement / marketing company to print it for you, usually they have plotters). It's not expensive and it is much better then putting it together from multiple papers.

Satyaveer Singh Rawat , 04-13-2024, 06:12 PM

2. Sir I didn't get the exact meaning of this: "Your Margins are big," There is nothing outside the board 4. Yes Sir I have checked the page tab.

Satyaveer Singh Rawat , 04-13-2024, 06:32 PM

Yes sir now I am planning to get the services of printing large format and fortunately I got those services in my institute's library at minimal cost. I tried it to print on A-2 but it is not covered on 1 page so I printed it on A-1 format (Attached here). Problem here in attached pdf is that it is showing board outline as 360 x 460 mm which was board size earlier. Now I have reduced the board size to 271 x 432 mm, and drawn the board outline around the new size also but it is still showing the older board outline. Please help me to correct this.

QDrives , 04-13-2024, 09:58 PM

About the margin: See the arrows from the paper edge to the board edge.
Pages: it mentions 2 pages and there is a bottom layer drawing with 3 dots. Click those 3 dots to remove the page.

QDrives , 04-13-2024, 10:01 PM

You will have the old board outline drawn on some layer.
Also make sure that the board outline is correct. In the PDF is shows me how bad it is drawn. Set the gris to 1mm or 2.5mm when drawing the board shape. Zoom in and out as needed to keep the corners 'straight'.

QDrives , 04-13-2024, 10:02 PM