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Questions tagged [altium]

Altium is integrated schematic capture, PCB design and FPGA software.

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5 views

Altium can't remove extruded mechanical layer in 3D view

I'm using Altium designer 18, and "suddenly" while designing all these gray shapes appeared. After trying to restart Altium they were still there. Closer inspection showed these pads are exactly where ...
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2answers
47 views

Difference between top pad master and top solder mask gerber files?

I generated gerber files to the pcb manufacturer, but I noticed that the top pad master (.GPT) was not generated, the top solder mask (.gts) was. The pcb manufacturer did not complain, but I'm ...
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21 views

Hexagonal hatched polygons Altium

I'm recently trying to design a flex PCB. I haven't been able to find any specific tutorials on how to do this in Altium. But I did find Altium blogs detailing some of the best design practices for ...
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1answer
27 views

Altium - How to place partly off PCB

I am just starting to use Altium to layout a PCB. I have made my own parts with 3D models. I have to large parts - one an LCD module, and the other a STM32F303RE Nucleo-64 dev board. I made an outline ...
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26 views

How to suppress Models not found warning dialog When I open pcbdoc in Altium Designer?

When I open pcbdoc file in Altium Designer, I am facing following warning dialog box. When i press "Ok" in this dialog, pcbdoc file is open in edited mode. So i have to save or discard changes when ...
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44 views

Issues with Altium sheet entries and nested harnesses

I have several Altium schematics, with a harness going through several level of sheet symbols and ports. This harness contain another harness, along with a few normal nets. The signals of that sub-...
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29 views

Placing a net tie underneath another component without the DRC error?

I'm using Altium Designer 19 and I have a ton of Net Ties many of which I'd like to place underneath other components. My net tie is just 2 6mil pads connected by a trace without any silkscreen or 3d ...
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2answers
37 views

Altium Designer: Not assigning all the sub-parts of a device

I've been banging my head against this one for a while now and can't seem to find and answer anywhere. I have a multi-channel design that uses a a quad comparator as the base part. However in the ...
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2answers
24 views

How can I allow a smaller clearance value for differential pairs in Altium?

I have finished routing a PCB in Altium (v17) and am resolving design rules violations. In short, everything checks out except differential pairs that are violating the ...
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1answer
28 views

(Altium) Multi-Channel Design - Net-Names don't change and how to use Harness?

I have a circuit which I want to use 3 times in my project. So, I thought it would be nice to try multi-channel design function in AD. I read the oline documentation and it seems to work (I used the ...
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1answer
127 views

What are these gaps in PCB polygon pours near vias of the same net?

When adding polygon pours to a power layer on my PCB in Altium Designer (v17), I'm getting weird clearance gaps near vias. The poly and vias are connected to the same net. I'm new to Altium, so I'm ...
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32 views

Altium vias on test point pads

I don't normally allow vias on regular SMT pads, but for test points there's no real need to go out of your way to avoid them. As long as the bed-o-nails will make good contact anyways. Now I can ...
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30 views

Altium Design rule check 45° to pads for AOI

I would like to create a PCB component clearance rule for the AOI which looks from 45° above onto the board to optically inspect all the soldered pads. I can manually set it but that would lead to one ...
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30 views

Altium Designer Scipting for gerber output

Is it possible to perform fabrication Gerber output in Altium Designer via scripting? If anyone has a script for the same, Can you please share it.
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5answers
73 views

Minimum Silkscreen Designator Size

I'm working on a fairly dense PCB at the moment and I'm having trouble fitting in all the component labels. What is the minimum readable standard size for component designators on the silkscreen? ...
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1answer
36 views

Altium designer routing problem

this is more of a 'I have no ideas how to route this part' than 'I don't how to technically route this part'. Or maybe both. Basically I have no ideas how to route and what to do here. R35 cant ...
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2answers
65 views

Create a simple resistive heating element on PCB with Altium

I have created a component with a simple pattern using tracks and arcs as shown in the link below. How to Build Custom PCB Heater Elements However, Altium DRC is throwing errors since I have used 2 ...
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19 views

Channel index not appended to port in Altium multi-channel schematic

Altium documentation shows that in multi-channel schematics, ports and net labels can automatically get appended with channel indices after the schematics are compiled. Logical view: Physical view: ...
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1answer
52 views

Altium Designer update nets in SchDoc from PcbDoc

I have an Altium Designer project with a PcbDoc and a SchDoc file. For some reason a few nets (connections) in PcbDoc are not present in SchDoc. Can I update SchDoc from PcbDoc so that schematic ...
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2answers
68 views

PCB - Altium designer resistor voltage divider calculation [duplicate]

Good evening, I have a problem, I'm not really studying EE or know anything about EE, but I'm doing an optional course in PCB design, in my schematic document, I have a place (picture), where I have ...
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1answer
42 views

Altium Clearance Constraints on USB Receptacle Footprint

I made a manual footprint for a USB micro-B receptacle that is now giving me problems on my PCB in Altium Designer 16. Here's the footprint drawing that I was going off of: And here's what my ...
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1answer
48 views

How to change Designator text size by script in Altium 17 or newer

For the assembly drawing I have to move all the designators to a prefefined layer, rotate them as needed and set the text size. I know this is possible via "find similar objects" but I would like to ...
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1answer
49 views

Altium plated mounting hole, Un-Routed net constraint

I am trying to resolve a problem I am having with Altium, maybe I am just missing something obvious but i'd like your insight. I have a 8 layer board, build out of signal layers, and internal planes. ...
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40 views

How to use Altium Multi-Board to define SODIMM board and socket connections?

I am attempting to use Altium 18.1.9's new "Multi-Board" feature to connect a 200-pin SODIMM board ---> to a SODIMM socket connector ---> on my mainboard PCB. This Altium article is just about the ...
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1answer
27 views

Room lines stills on my pcb and the top layers tracks are not displayed in 3D view, Altium

The fact is that I have routed. I would like to know how to proceed when this kind of thing happens when using altium. The routed tracks can be seen perfectly in 2D view. But when click 3D view I can ...
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2answers
48 views

Altium pin parameters in symbols

thanks for the many great questions and answers over the years. This is my first question. I use Altium Designer for capturing designs. I had an idea to make my processor components a little more ...
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1answer
34 views

shortcut to change layer/add via while routing in Altium doesn' t work

I'm trying to change my tracks during routing to pass from bottom to the top, or from top to bottom using +/- buttons, but neither numerical buttons neither +/- buttons from keyboard buttons are doing ...
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1answer
40 views

Altium net designator like option?

I'm looking to see if it is possible to label net names in Altium in some way similar to the concept of component designators (eg R? C?) which would enable me to duplicate a section of a circuit which ...
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2answers
29 views

Scrolling screen in altium 16

I'm a totally newbie to altium and there's one thing that totally annoys me: I don't see any scrolling bars on the sides of PCB editor. Normally, screen scrolling is done by clicking middle button on ...
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1answer
59 views

Importing spreadsheet (pdf/xls) into Altium

I have following spreadsheet in a PDF file: How do I import it into Altium and place it on Top Layer in PCB Editor?
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2answers
118 views

Bus vs Signal Harness in Altium

I am designing a Schematics for one of my big project. I am using Hierarchical Design for my project. My Schematics has one processor which has 5 UART. The UART nets have names like ...
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1answer
35 views

Connecting multiple Net Labels to same Net Wire

I am using Altium Designer 17. My schematics is Hierarchical and divided into multiple sheets. Few sheets have microprocessor ...
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2answers
98 views

Problem when adding teardrops in Altium

It seems easy to add teardrops for connections in Altium. But in my design, after adding teardrops, it throwing errors which indicating the 'teardrops' violate my clearance constraint such as: ...
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45 views

Updating schematic symbol in Altium

I'm trying to learn Altium and would like to know if someone can point me in the right direction here or if it's even possible to do this. So I've created a 20 pin symbol on a .SchLib for an IC and ...
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40 views

How to create a component from a pre-existing one in Altium Summer 09?

I'm using Altium summer 09, I need to use "D connector 15" , however, I need male and female connectors. I do not know which of them was made, male or female, in the footprint of the compenente "D ...
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1answer
71 views

Keepout in Solder Mask in Altium 17 for SD Card Connector

I am creating footprint for Amphenol's SD Card Connector in Altium Designer 17. The datasheet shows ...
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0answers
40 views

Add OpAmp subcircuit spice model to Altium

I want to add SPICE OpAmp model of Analog devices by .cir extension containing .SUBCKT information to Altium. I have it's schematic but I don't know how to add it's simulation file to it. I have ...
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1answer
50 views

Altium Designer “NotFited” in BOM with DNP

I heve problem with Altium BOM document generation. I want have multi variants of one project with some DNP elements. It's no problem if I want remove elements from BOM, for this I can add variants ...
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1answer
23 views

Create specific area in Altium 15 with smaller trace width/clearance rule

I'm currently doing the fanout for a ~500 Pin FPGA. To keep the layer count of the PCB low, I'd like to lower the clearance/track width in the area of the FPGA in order to route traces between the ...
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1answer
188 views

Altium Designer: mixed mechanical layers on Top and Bottom Layer Pair

I have a multilayer board I'm working with. To ease placement and routing, I created some layer pairs and two Layer Set (TOPSet, BottomSet) and then I clicked on hide/show button to assign meaningful ...
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2answers
106 views

Can a via be placed in between the pads of a resistor?

Can I place a via in between the pads of a resistor as shown in the image?
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1answer
39 views

Altium : components don't moves with thier room anymore

I have a design with several rooms in it. I did a part of the routing and I don't know what I did but now when I move a room, the components don't move with it. I found something in the documentation ...
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2answers
68 views

Grid Mismatch in Altium

I have some custom components built. Some of the components are showing as off-grid in schematic. I am attaching the screenshot of the component designer and schematic designer. Can someone please ...
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1answer
51 views

Why do I get “Supplier Disabled” in my Altium BOM

I am trying to generate a BOM of my Altium project so that I can send it to the procurement people. However, strangely when I go into Reports > ...
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24 views

Altium DRC to catch via on plane split

I had a recent design flagged from the PCB house because of a via that almost didn't connect to the power plane it should have, due to its placement on a split line (see below). I want to add a ...
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1answer
48 views

extract technical drawing from pdf into altium

I have a PDF containing a diagram of a PCB which I intend to include in my system. Unfortunately while some dimensions are indicated on this pdf others are not. I would like to import this diagram ...
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1answer
54 views

Keep old reference designators when copying a schematic sheet into Altium

We have a pair of designs with Altium that are very similar; one board is a cut down versin of the other essentially. We want to import schematic sheets into the new, cut down version from the old ...
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1answer
24 views

altium TI webbench, populate footprint in schematic

I have exported a design from Ti webbench in Altium format. I have used "project-component links" to link up the schematic and PCB. The PCB has footprints set but the schematic does not which causes ...
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4answers
98 views

Can Altium Designer 17 Generate Missing Paste Mask Layers?

I recently ordered three proto PCBs from a small PCB company. This board house produces Gerber files in-house from their proprietary PCB layout files, and provides this Gerber set to the user on ...
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2answers
53 views

Altium 18 PCB Filter Select X *except* if Y

I'm trying to create a PCB filter that will allow me to select everything on the board except for components that have an 0402 or 0603 package size. We have a parameter in our passive parts called "...