2
\$\begingroup\$

I'm trying to add this component to my design in Altium but I don't understand this kind of "holes" (I suppose it can't be drilled properly.) I can't find any tool in Altium to design this hole. Is there a way to do it?

enter image description here

I have tried to do 2 holes and put on one over the other but on 3D view it can be seen this (i'm trying to d this from footprint editor):

enter image description here

\$\endgroup\$
3
  • 1
    \$\begingroup\$ These would be slots I believe you're asking about. You can use non-plated pads with x/y different values, and choose "slot" for the pad-stack. Then you might overlap two slots to get what you require, in this case a type of L-slot. The exterior of the periphery isn't clear from your drawing if they are counter-bored or otherwise if it is copper-plated etc. \$\endgroup\$
    – citizen
    Commented Dec 2, 2021 at 15:19
  • 1
    \$\begingroup\$ As an FYI, these plated slots are actually drilled- using a series of overlapping holes to get a fairly smooth internal edge. \$\endgroup\$ Commented Dec 2, 2021 at 15:22
  • 1
    \$\begingroup\$ The 3D view doesn't show reality. What you're seeing in that view doesn't indicate there will be any problem with the finished product. \$\endgroup\$
    – The Photon
    Commented Dec 2, 2021 at 17:28

1 Answer 1

4
\$\begingroup\$

Two possible ways:

  1. Combine two slot holes:

enter image description here

  1. Draw both hole and annular ring with lines, convert it to the board cutout (Tools - Convert - Create board cutout) and copper region (Tools - Convert - Create region)

In both cases, you'll need to override DRC rules. The situation will be easier for a first case because it's just one rule - hole-to-hole clearance.

Also, it'll be a good idea to warn your PCB house about this stuff because it doesn't quite fit into "standard" PCB features. If the PCB house won't know what you want to achieve - there is a possibility to receive manufactured PCB without slot plating.

\$\endgroup\$
2
  • \$\begingroup\$ First method might be more preferable because cut-outs don't appear in the gerber files. They are helpful especially for 3D. \$\endgroup\$ Commented Dec 2, 2021 at 16:00
  • \$\begingroup\$ Yes, if you considered 3D rendering your PCB. But from a manufacturing point of view, I’d like to suggest that interleaved slots are a more “classical” approach \$\endgroup\$
    – Looongcat
    Commented Dec 3, 2021 at 19:04

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.