Questions tagged [cad]

Computer Aided Design

Filter by
Sorted by
Tagged with
0 votes
2 answers
42 views

In Altium, how do I create mounting holes for a through hole transistor? [closed]

I am starting to learn Altium and I don't know how to create a through hole footprint. How do I get started on this? https://www.mouser.com/ProductDetail/Diotec-Semiconductor/BC337-40?qs=...
Max Cycles's user avatar
-2 votes
1 answer
33 views

TinkerCAD Digital Logic LED [duplicate]

I finished building this circuit in TinkerCAD, but for some reason the AND gate won't behave like it's supposed to. Shouldn't the LED turn ON when both 1 and 2 are ON? Instead, it turns ON when both 1 ...
user367142's user avatar
-1 votes
1 answer
39 views

TinkerCAD Digital Logic

Everything here seems to be right, like the gates and resistors, but the gate seems to be the issue; the LED is off when the switch is on. What is the issue? I have also included the schematic.
user367142's user avatar
0 votes
1 answer
47 views

How do I change minimum anular ring in vias for different layers in Altium?

I want to send my gerbers to a PCB manufacturer but its manufacturing capabilities force diferrent minimum anular ring for vias in different layers. For outer layers, its 0.13 mm and for internal ...
Developing Electronics's user avatar
0 votes
0 answers
34 views

Issue in understanding routing in VLSI CAD

I have chosen to undertake VLSI CAD as a part of my electronics degree and I came across this statement (Source : Naveed Sherwani, Algorithms for VLSI Physical Design Automation, 3rd edition , Chapter ...
fat_gladiator17's user avatar
0 votes
0 answers
25 views

Altium Efficient Usage of Signal Harness

I have a 16-channel differential analog input which I would like to represent through a signal harness (see below). I am new to Altium, and I am curious if there is a trick to define my harness more ...
Neekon Saadat's user avatar
0 votes
0 answers
67 views

PCB components/ creation

I am tasked with the creation of a PCB that is quite simple. It is only a simple route from a 26 pin MDR to a 2 pin terminal block. I am stuck though. I am using Fusion 360 and I have a few questions. ...
Wes Ellgass's user avatar
2 votes
4 answers
155 views

Is there a Design Rules change to fill in this gap between an IC and polygon in Eagle?

I adjusted the clearance values, and that did not fill in the gap.
adamaero's user avatar
  • 677
0 votes
0 answers
76 views

How can I rename Altium Library file and apply source change for each component?

I want to change the name of the library files in my Altium Project (inside the folder "Libraries" you can find .SchLib and .PcbLib). I can righ click them and select the rename option. That ...
Developing Electronics's user avatar
3 votes
1 answer
140 views

What are some best practices for library management for schematic and PCB design?

Most CAD packages use a "symbol" and "footprint" library approach when it comes to designing schematics and PCBs. Some (like recent versions of Altium) have "component" ...
Mu3's user avatar
  • 522
0 votes
1 answer
46 views

ECAD Program that knows about breakout boards?

Are there any ECAD/layout programs that know about popular breakout boards in their component libraries? For example, pieces like an ESP32 Dev Board or TB6612FNG breakout board. (note) I am not ...
Mark Harrison's user avatar
0 votes
0 answers
101 views

Xpedition Designer DNP (no fit) components

Could somebody please let me know what the method is to mark a component as DNP (not to be fitted in production) in Xpedition Designer (schematic entry). I can't find it in the docs and I'm used to ...
BlueTwin's user avatar
0 votes
1 answer
2k views

How do I get a bigger sheet size in Altium, updating current one?

I have a schematic sheet and I need more free space on it. The actual size is A4. I have right-clicked in the sheet, went to Preferences and changed the Sheet Size from A4 to A3 but that does not make ...
Developing Electronics's user avatar
0 votes
0 answers
44 views

How to update HFSS component/block elements throughout design?

I'm trying to create a model in HFSS that has a particular block (in this case an SMP connector footprint) that is repeated a number of times throughout the design. It involves geometry I've drawn for ...
Matt's user avatar
  • 1
0 votes
0 answers
78 views

Net GND's unconnected alert remains off in Altium

I have my Altium Designer project where I have a net called GND. That's the ground. While routing, I can see these little white lines that alert me about which pad I need to connect to each other, and ...
Developing Electronics's user avatar
0 votes
0 answers
477 views

Cadence genus synthesis script issue

I have written a genus synthesis script for synthesizing my design of Direct Digital Synthesis for a University project. The DDS design is working properly in simulation and is fully synthesizable. I ...
blackblade's user avatar
0 votes
0 answers
30 views

Does anyone know how to delete a 3D Model of a part in AUTOTRAX DEX?

Trying to delete a 3d part but not sure how to. Using AutoTrax Design Express Version: 2023.3.1
S_D's user avatar
  • 67
0 votes
2 answers
78 views

DC motor datasheet: dimensions

I have a PC280LG-302 DC motor, and I need to know the shaft length for this. In the documentation they just wrote it as DIM."A" and total length as DIM."B". Can anybody understand ...
visahl's user avatar
  • 31
2 votes
1 answer
809 views

Relative path for KiCad custom symbols

I'm trying to make my KiCad projects portable & that requires my custom symbols & footprint I used for these different projects be portable as well. So I'm putting my "my_symbols" &...
Tempus Nomen's user avatar
2 votes
1 answer
119 views

Stripping down this SVG diagram to be a footprint in KiCad

This is a continuation of this question: Trouble finding/creating footprint for a specific switch (SP10T) in KiCAD I have an SVG diagram of a SP10T switch, from which I would like to create a ...
Tempus Nomen's user avatar
1 vote
1 answer
239 views

Trouble finding/creating footprint for a specific switch (SP10T) in KiCAD

Well, I feel that time has passed me by (guess I'm old), as the local makerspace I've been visiting don't even do chemical etching anymore & the process of manufacturing a PCB from schematic to ...
Tempus Nomen's user avatar
0 votes
3 answers
40 views

Extra pads on CAD footprint

A Phoenix 2 pin connector I am using, shown here: https://app.ultralibrarian.com/details/eb577c4a-1e49-11e9-ab3a-0a3560a4cccc/Phoenix-Contact/1725656 has 2 pins and 2 mounting legs. The std view ...
Derek Johnson's user avatar
1 vote
1 answer
243 views

Definition of small-signal capacitances calculated by Sentaurus TCAD Mixed-Mode/AC Analysis

I'm currently working on a capacitance model which will be part of a greater compact model for a planar RFET. I use Sentaurus TCAD to generate capacitance data, which I use to understand the ...
zraibra's user avatar
  • 11
0 votes
0 answers
110 views

Multisim schematic to other CAD

Does anyone knows a way to convert my schematic file in MS14 to any other CAD system? I want to open it with Altium.
Alex1988's user avatar
0 votes
1 answer
1k views

Creating a new schematic for an existing PCB in Altium

I'm pretty new to Altium (I'm used to Eagle) but I've been given the task of cleaning up an existing project. The project was originally one schematic and one PCB that would serve as two parts of an ...
thunderbootyclap's user avatar
1 vote
0 answers
34 views

What CAD software is used to design and manufacture projected capacitive touchscreens?

I am looking to learn more about how projected capacitive (PCAP) touchscreens are designed and made, specifically with laser ablation. What kind of CAD software is used to create layered drawings for ...
Thien Ho's user avatar
-1 votes
1 answer
159 views

How to import wiring csv into cad?

I have a .csv file which contains the (complicated) points of the paths that I need my wires to trace. I would normally use EasyEda for making grbl files, but I don't think it is capable. Is there a ...
user1402154's user avatar
0 votes
0 answers
365 views

Is there a way in Mentor Graphics (Siemens) Pads Designer VX2.2 / Pads PCB to route through unused pads without generating a DRC error?

I am using an eMMC memory in one of my designs. It is in a 153 ball package (which appears to be one of two industry standard packages for this type of memory). The pads for the BGA balls have 0....
user4574's user avatar
  • 12.2k
4 votes
1 answer
982 views

What does INH as an IC pin label mean?

While using a CAD model for a 74HC4051D multiplexer which I downloaded from SnapEDA I noticed that pin 6 is labelled INH rather than E bar (or Enable) as I anticipated from the datasheet. What does ...
RowanP's user avatar
  • 446
0 votes
0 answers
744 views

An alternative to CADe SIMU

CADe SIMU is a industrial circuit drawning and simulation software. I have troubles with the icons size and some bugs, so I am looking for an alternative to CADe SIMU. I found good softwares to draw ...
Joás Fellipe's user avatar
2 votes
0 answers
53 views

Hirose connector footprint comprehension

I am trying to understand how the datasheet of the DF40 series of connector from Hirose describe the footprint. There is a part of the footprint receptacle that is hatched and I don't understand ...
PierreOlivier's user avatar
2 votes
2 answers
194 views

Old EDA software for Mac called "EDS"

So we have some old schematics at work that were ostensibly made by an EDA software called "RUN" "EDS" probably sometime in the early 90s. Supposedly this software ran under the ...
Lucas's user avatar
  • 451
0 votes
1 answer
648 views

Is it possible to import CAD model files into LTspice?

There are very beneficial and comprehensive collections of CAD models provided by Mouser or other websites. Is it possible to use them in LTspice?
WeTech's user avatar
  • 735
0 votes
0 answers
77 views

How to export EAGLE 9.6.2 design to CADSTAR 2019.0

Does anyone know how to export board from EAGLE 9.6.2 to CADSTAR 2019.0, so that CADSTAR can be used for making a layout and further netlist? Any readily available ULP script might help. The schematic ...
abunickabhi's user avatar
0 votes
1 answer
117 views

Altium - imperfect polygon-via connection

Altium tries to approximate circles where it doesn't need to. I have a polygon pour with some vias inside, associated to the same net. The connection style is "direct connection" so the ...
NXP's user avatar
  • 391
0 votes
1 answer
1k views

How to switch SMD part for through-hole part in EasyEDA?

I'm using EasyEDA for the first time. I have about zero experience with CAD. I drew this schematic And generated this PCB layout But I really wanted to use a through-hole DIP package for the ...
RedGrittyBrick's user avatar
0 votes
1 answer
136 views

Adding Holes to a custom EAGLE library

Currently, I am creating a custom EAGLE library for a relay that I couldn't find the CAD for. In the packag stage: I added the pads as seen in the picture and I'm having second thoughts about adding ...
sarah 's user avatar
  • 123
0 votes
0 answers
254 views

I have created a sub-circuit in Proteus but I can reuse it? How do I reuse it?

Basically I want to pack a large number of components to form a small device. I will use this device many times. So I created a subcircuit and designed my circuit in it. But whenever I make a copy of ...
Ali Aqdas's user avatar
  • 125
0 votes
0 answers
47 views

How to define new component origin in EagleCad board view

I have been trying to rotate a component in my eagle pcb board mode but the centre of rotation has been defined upon one of the pins of said part. (potentiometer) This is what I have done so far: I ...
diskosteppas's user avatar
0 votes
1 answer
291 views

Eagle Cad Resize PCB

I am having trouble resizing the PCB after components have been placed. I know this is not the usual method, but I have been given a .brd file and .sch and the board dimensions were decided already. ...
diskosteppas's user avatar
0 votes
2 answers
222 views

Where can I get a 3D CAD model of the lead frame of TO220-2L?

I am new to electronics packaging and searching for a 3D CAD model of TO220 with 2 leads. I have tried at numerous websites without any luck. If anyone has a 3D CAD model of this lead frame or can ...
Kam's user avatar
  • 13
0 votes
0 answers
230 views

Altium Polygon Pour gap - minimum feature clearance rule?

Didn't find anyone covering this. On this image I'm showing a GND Polygon pour artifact that I cannot seem Altium to detect that gap is too narrow. Polygons are: Remove Islands less than 0.2 sq.mms ...
crypton's user avatar
  • 135
0 votes
2 answers
118 views

How to Show Voltage Inputs Without a Net in EAGLE

when I am creating a schematic in EAGLE I would like the ability to show inputs from another area. I think this should be a possibility, as it is used widely. I have an example of an image below that ...
solarmainframe's user avatar
0 votes
1 answer
39 views

Software identification of a DIY (guitarist) CAD application

I know there is a reasonably popular tag for component identification, however I have a question about software identification. Before I used KiCad (when started with electronics), I used for a while ...
Michel Keijzers's user avatar
1 vote
1 answer
237 views

Match Two PCBs Layout and Dimension in EAGLE CAD

I want to create a PCB (name A) where I can put another PCB (name B) on top of it using Autodesk EAGLE. I need to match the PCB B's pads position while designing PCB A. Here's the picture of PCB B : ...
erichps's user avatar
  • 13
2 votes
2 answers
3k views

What is the difference between Eplan/Elcad/Autodesk Electrical vs Altium/Eagle/KiCAD?

Recently I came across the programs Eplan, Elcad and Autodesk Electrical. As far as I can tell, they are used to draw schematics. Is it possible to do the same thing with a PCB design software like ...
Ken Grimes's user avatar
  • 1,309
0 votes
1 answer
55 views

Help identifying electrical components

Sorry if this inquiry is it a little bit basic and boring, but I need some sort of help with this, and I am really not sure where to look online. I need help identifying several different electrical ...
Brokis Voekler's user avatar
3 votes
1 answer
10k views

How to round all corners on a PCB in Altiium

All my PCB's have round corners, so you can't hurt yourself, and so it is easier to fit it into a rack. Now with altium i always have drag the edges in the Board Shape Editor to make them round. I ...
Felix Kunz's user avatar
0 votes
2 answers
165 views

What does this symbol mean in PCB Layout?

I came across this USB TX lines in pcb layout. Yet to figure out what do those circles at the joints mean?
Dynamic_equilibrium's user avatar
0 votes
1 answer
107 views

Understanding how PCB CAD designs affect the final product [closed]

I'm looking to design my first printed circuit board and having trouble understanding PCB CAD systems conceptually. I've started on schematics with EasyEDA, KiCAD, and Fritzing without finishing, as ...
Brian Slesinsky's user avatar