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Step 9Changing pad sizes with the RESTRING rules
The RESTRING panel controls the size of pads. It'd be nice if we could make the ring be 0.8mm thick too, but by the time you have .8mm of hole and .8mm of ring on each side, you have 2.4mm diameter pads. Since many parts have the pads on 0.1inch (2.54mm) centers, that doesn't leave enough space BETWEEN
pads. So I'll use 0.6mm here, and I'll still have to use the smaller clearance values between pads that I mentioned above. I'll still have problems with PADs that are much bigger than .8mm (it takes about a 1mm hole
to hold a .025inch square post as found on many connectors.) You can trade off pad-pad clearance against pad diameters forced by the restring settings, depending on where you have more problems with whatever PCB technique you're using. One advantage of a large pad is it makes you less sensitive to the drill you actually use; even if the library is set up for a .6mm drill and you use a .8mm drill, you should have enough copper left so that you won't have a big problem. You don't need to set inner layer or micro-via values:
pads. So I'll use 0.6mm here, and I'll still have to use the smaller clearance values between pads that I mentioned above. I'll still have problems with PADs that are much bigger than .8mm (it takes about a 1mm hole
to hold a .025inch square post as found on many connectors.) You can trade off pad-pad clearance against pad diameters forced by the restring settings, depending on where you have more problems with whatever PCB technique you're using. One advantage of a large pad is it makes you less sensitive to the drill you actually use; even if the library is set up for a .6mm drill and you use a .8mm drill, you should have enough copper left so that you won't have a big problem. You don't need to set inner layer or micro-via values:
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