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Questions tagged [altium]

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

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2answers
77 views

Which gerber files I need to send to my PCB manufacturer?

My PCB has two layers. I'm using altium and, after to generate the gerber files, I will to generate the drill files and send to a PCB's manufacturer. But, about mechanical gerber files extensions, ...
0
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1answer
13 views

How can I change all existing designator font sizes on PCB in Altium?

When I select multiple designators and when I select "properties" - only one designator changes. I have same problem with setting other parameters on multiple objects. How can I change all existing ...
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0answers
34 views

Altium: Parameter from 'Sheet Symbol' in Schematic also displayed on PCB?

As image below, I have a 'Sheet Symbol' that I will use many times. I have defined a parameter for the 'Sheet Symbol' called 'name'. Is there a way of having this text shown on the overlay/silkscreen ...
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0answers
21 views

Altium: Stitching vias applying for multiple nets in multiple channels

I'm tryint to add stitching vias to my multichannel project. I have 5 nets for via stitching to be applied on each channel and 3 channels in the project. So 15 nets in total. Looks not too much to ...
1
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1answer
43 views

How to design planar toroidal inductors using Altium designer?

Prior to this, I did spiral inductors which was relatively easy. But I am now stuck in designing toroidal inductors. I know the distance between each turns but having trouble placing them in ...
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2answers
53 views

doubt in altuim

when I compile the project I had no error but many warnings does this affect my work. when I validate changes in engineering change order I get " failed to add class member" but later I found all the ...
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0answers
11 views

Unlock movement/edit of internal polygon layers in altium 19?

I changed an internal plane to a signal layer and now I want to be able to move objects in this layers like polygon, however I seem to be unable to do so. How can I unlock polygon move/edit in this ...
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0answers
19 views

Altium Designer: Copy room format does not modify polygon net name

I have a multichannel PCB with channels named U1, U2 and U3. I'm trying to copy the format of one channel to other two: component placement, routing, polygons. In the first place I was facing that ...
0
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1answer
54 views

Altium error message: Net(s) Not Found in Differential Pair

When I try to validate changes from my project, I get this error message: Net(s) Not Found in Differential Pair PA_D : Positive Net [PA_D_P] & Negative Net [PA_D_N] in current PCB document
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0answers
8 views

How can I change to metrics units in the “Pad template editor” in Altium 19?

I wonder how I can change the units in the pad template editor to metrics? I also wonder if I can change the default vias to look nicely! For me the default vias looks like this: However after ...
0
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1answer
11 views

How do I change and select which Polygon thermal relief Altium Designer 19 shall use?

How can I make a polygon in a Signal layer in Altium Desginer 19, to change its copper thermal relief? I've created a rule for it, or so I think. But I have not been able to find where I select ...
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1answer
59 views

Net has only one pin in altuim

how can i solve this problem. Thank You. Best Regards
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0answers
29 views

I get error while using altium library

I made an integrated library using altium form my personal usage. Everything was OK but today when I want to use this library I get this error while try to use some of the components. [File Access ...
0
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1answer
30 views

Altium designer, changing from imperic to metrics primitives won't work?

I'm using a trial on Altium, where for I guess support ignores me (Altium Designer version 19.0.14). (I really hope it's better for real users if someone can confirm that, it would be most ...
0
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1answer
51 views

Altium Designer 19 net name hidden on tracks

In Altium Designer 10, the PCB file will show Net Names on Tracks and designator on footprint, like this picture: but in Altium Designer 19, the Net Name and designator are both hidden: Does someone ...
0
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1answer
34 views

ERC for power pin drive - Altium Designer

It'd be of great use for us to emit correct rule check violations for power pins in IC we use. The logic is to force compiling failure when power pins of ICs are not driven correctly from power ...
0
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1answer
30 views

Altium “Update PCB documents”, components are generated at the same place

I'm new with hierchical design in Altium. When I update the PCB, all the components of the multi sheets are generated at the same place. There is the hiearchy of the project : I highlighted the ...
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0answers
66 views

PCB HDMI high speed routing suggestions on my layout

I would like to get suggestions from all the high speed PCB layout experts on my PCB design. I have a board with HDMI transmitter IC whose output is going to HDMI switch IC. The switch IC also has ...
0
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1answer
33 views

Altium - convert blind via to through hole

I want to convert blind vias to through hole (4 layer board) like shown below: How do I do this?
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1answer
55 views

Altium - design rule check does not match with signal integrity for impedance

I have designed a 2-layer PCB with Altium Designer. I placed an impedance rule of 50 Ohm in trace width rule section. When I run the design rule check, there is no impedance error. However, when I ...
0
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1answer
32 views

Problem Placing Polygon Pour on Board Altium 17.1

I'm laying out a two-layer PCB. I've routed all the signals, including power and ground. I like to add a ground plane on both layers by placing polygon pours. I'm having trouble getting Altium to ...
3
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0answers
41 views

Altium testpoints auto-placement

Is there a way to use Altium to automatically generate test points on an already routed board? When there is no usable via, I'd like to place a pad on the net. When reviewing Altium API reference ...
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0answers
25 views

UnRouted Net Constraint in Altium after Via Stitching

I am just wrapping up my Design of one of my project in Altium 17. I was done with adding ...
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1answer
45 views

Altium selecting problem with imported DXF file

I've imported a DXF file on to my PCB editor in altium designer 18. The problem I have is Altium will not selcet my import. I've tried select All I've run my mouse over the object, some of the object ...
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2answers
19 views

Altium STEP Models Aligning Underneath Board

I'm trying to import a STEP model for a uFL connector and it's oddly misaligned beneath the board (see "3D uFL PCB" image attached). I've tried rotating it every which way but I cannot fathom how it ...
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0answers
59 views

Footprint panel is grayed on Altium Designer PCB

This is a project I imported from Eagle (not so bad by the way). I resolved all schematic compilation errors. But now I am facing some small issues in the PCB part: On the properties panel when I ...
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0answers
37 views

Altium: Error on PCB Footprint Updating

I am using Altium 14.1.5 I made a change to a footprint in a non-integrated library and then wanted to update my PCB with the new footprint and it is not updating properly. I may be doing something ...
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1answer
51 views

Altium Designer: polygon pour on signal layer

I'm designing a board around 2 Texas Instruments TPS65988. In the datasheet a layout example is shown where "fins" are placed around pads to provide further thermal dissipation. A pour to create this ...
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0answers
70 views

Why are project files in Altium modified every time they are opened? Is there a way to prevent this?

I use Altium Designer 18. When I open a project file (.PrjPCB), the asterisk ("*") appears next to the project name indicating that the project has been modified, but I haven't actually made any ...
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0answers
28 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
140 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 ...
2
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0answers
37 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
29 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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0answers
27 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 ...
2
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0answers
66 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-...
1
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1answer
44 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
42 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
29 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 ...
0
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1answer
46 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
138 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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0answers
44 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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0answers
32 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 ...
2
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5answers
124 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? ...
1
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1answer
41 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 ...
1
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2answers
90 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 ...
0
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0answers
23 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: ...
0
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1answer
94 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
88 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 ...
0
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1answer
58 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 ...
0
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1answer
97 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 ...