Jump to content
Electronics-Lab.com Community
Sign in to follow this  
trienbang431986

Re: sizing pc board artwork

Recommended Posts

There are 2 sizes to every image on a computer. The first size is the image in pixels, which is how we view it and how it is displayed on a computer monitor. The second size is the print size. Different software will handle this in different ways. The secong size is the print resolution which is defined at pixels per square inch or pixels per cm square. So if you have and image which is 100 x 100 pixels and the resolution is 100 pixels/inch. The image will print out 1 sqaure inch. If the reslotion is 50 pixels/inch the image will print out to be 2 square inches. If the resolution is 200 pixels/inch the image will print out .5 square inches.

Now you have to figure how the image size of the file in pixels and then define the print resoution in the software you are using to get the appropriate size. The setting may have been known by the origional creator of the artwork. But the file itself will not contain the print resolution data. You will have to do some test print and lay your components on it to determine when the settings are correct. Or use the grid option of your image editor and an approtiate resolution to detemine if the component holes are layed out in the appropriate locations.

Good Luck,
Jesse

Share this post


Link to post
Share on other sites

Trienbang,
Your DIP or SIP packages on this board most likely have their holes on 0.1" centers (2.54mm). It is pretty standard. Print and measure, then tweak on the size if needed.

MP

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...