1. Home
  2. Electronics Design
  3. Preparing NC Drill ouput from Protel for Olimex

Preparing NC Drill ouput from Protel for Olimex

I am designing a PCB using Protel, which I intend getting prototyped using Olimex.

The Protel PCB libraries all refer to finished hole sizes (for example

0.8mm). Olimex require drilling information to be the unplated hole size and indicate that the finished hole size will be approximately 0.1mm smaller. Does Protel include finished hole sizes in its ouput files or does it take into account plating and select a drill size slightly larger than the finished size?

If the former then presumably I have to edit all the component footprints to increase the indicated hole size to the actual drill size rather than the finished hole size (e.g. 0.9mm rather than 0.8mm). Is there an easy way to do that?

Reply to
Andrew
Loading thread data ...

On Sat, 9 Apr 2005 10:41:57 +0100, "Andrew" wroth:

The drill file is an ascii text file with a list of all the drill sizes presented at the top of the file. It would be easy to use any text editor to adjust the drill diameters. If there are a large number of slightly different drill sizes, you can even combine several different sizes together into one size to reduce the total number of different drill sizes needed.

Jim

Reply to
James Meyer

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.