From 62b89c9009c2e8ea00485bbcfb047d1fa11e7234 Mon Sep 17 00:00:00 2001 From: Joe Foley Date: Sun, 12 Jul 2026 22:59:45 +0000 Subject: [PATCH] neckdown warning dealth with --- README.md | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/README.md b/README.md index 09f7893..9b6dd4e 100644 --- a/README.md +++ b/README.md @@ -112,14 +112,14 @@ Altium Designer is an expensive professional-grade ECAD software for schematic c Solder one the components to the board (or send it to a fabricator for larger orders with a pick and place) Test, Share, and Enjoy! -FAQ -How do I reuse footprints and symbols when creating a new part? +# FAQ +## How do I reuse footprints and symbols when creating a new part? Click on Existing in the dropdown Navigate to the "Models" folder Pick footprint or symbol -My mounting holes are causing the footprint to get errors on Validation +## My mounting holes are causing the footprint to get errors on Validation Edit the schematic symbol Click on an empty spot on the sheet @@ -130,7 +130,7 @@ My mounting holes are causing the footprint to get errors on Validation Click OK -My mounting holes are causing the footprint to get errors on the Design Rule check "Hole Size Constraint" +## My mounting holes are causing the footprint to get errors on the Design Rule check "Hole Size Constraint" Open Constraint MNAGER Tab "All Rules" @@ -138,7 +138,7 @@ My mounting holes are causing the footprint to get errors on the Design Rule che Increase the Maximum to your hole size or create a new rule for your mounting holes specifically This page has a suggestion I'm still testing: https://electronics.stackexchange.com/questions/682935/how-can-i-select-mounting-holes-pads-for-design-rule-checks-or-queries-in-alti -What if my component's pins have a missing number in the sequence? Validation fails! +## What if my component's pins have a missing number in the sequence? Validation fails! Oh boy. This took a while to figure out. The trick is to make a hidden pin just as you would for a mounting hole. See the suggestion above. Surface mount components aren't working with the autorouter! @@ -158,6 +158,13 @@ Tight surfacemount components need a fanout before routing. Physical All net: Min: 0.076mm, Prefer: 0.2mm, Max: 0.25 Make sure that if you have a Power net, it also has the same sizes +In addition, the Constraints Manager is missing some of the SMT rules so the Autorouter makes some assumptions. Read the [Altium article "SMT Rule Types"](https://www.altium.com/documentation/altium-designer/pcb/design-rule-types/smt#smd-to-plane)for more information on these. + + Design > Constraint Manager + All Rules + SMT > SMD Neck-Down + Create Advanced rule and keep the default neckdown of 50% + ## I want to reuse my constraints to make another board without having to put all the numbers in again. How do I do this? Reference: https://www.altium.com/documentation/altium-designer/pcb/constraints-editor#new-custom-constraint-rule