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Great lecture and presentation, Thank you Carol

Iron

Very good hands on workshop, congratulations for Carol and sponsors. Thanks a lot.

Iron

I am reviewing missing archives.

Iron

EasyPC, Tango, Orcad, Altium Designer

Iron

Hello just taking Carol lectures.

Iron

heard about this class from emails from design news

good walk through ... but if this was a board layout class I would like to start more with theory or at least philosophy / design guidelines, industry standards, checklists etc ... gets back to whether this class is about LED's or PWB's -- I think you are touching on or alluding to the right issues as you go along ...

pad size can matter for some manufacturing houses or even in general.  Surface mount in particular but even in through hole boards, over sizing a pad too much may mean the pad becomes a heat sink and the solder joints are less than desired.  I have had some occasions where plastic packages have been thought to take on moisture, and the reflow process for surface mount does not get the pads or leads up to temperature specs and bad solder joints occur.  Some IC manufacturers warn against this ...

there are checklists online and often from your prototype house that help in layout not only for good design practices, but for manufacturability (DFM) / assembly and to take into consideration testability

glad to see footprint guidelines, a good start for DFM

In my experience DesignSpark is nice and simple, after Expedition PCB it took me just about 30 minutes to figure out the main flow of its GUI.

Knew about class from CEC

Is there any DRC options to be covered?

Hello from Oregon, good to have an archive option, it is way too convenient.

Howdy Achived people!

Iron

Ive been following the classes since the beginning

 

I havent used and LED design software

Picking up another one a bit late

 

PCB software : I'll try to use DesignSpark package

Iron

Very good presentation

Iron

Been here almost 2 years. Rod. R.

Iron

Any certificate of completion ive never received one?.

Iron

I heard about the class from the digi-key website. 

Iron

@Rob - on DN web page...

Iron

@Rob - used Eagle for a hobby project

Iron

I see, there is a new flash player today... hopefully it works in FF for live audio.

Iron

Missed the live session again...

Iron

Kenstan, just look up the archived version, the program is long gone, and the host has left.

i have missed quite a lot

Iron

what is the lecture time now

Iron

Yes, I'm willing to resort to Linux for some things, if I have to, I just prefer not to.

Right, of course, sorry I didn't mean to get in the platform discussions---just pointed out that it's easy to get things running on a MAC.

Gold

Thanks everyone for joining our class today presented by Carol Lenk. We look forward to seeing you all at tomorrow's class. Carol will talk about finishing the layout.

Blogger

It is really annoying how quickly failure to find cross-platform solutions for something as simple as a presentation file rapidly degenerates an education session into a platform war. :P

when is the time now

 

Iron

Great discussions, all. See you tomorrow!

Blogger

Macs have command line terminals. You are giving up on pretty buttons for no reason. Regardless, this is about finding solutions to problems, not about which platform is better.

@Tenacious, anything Linux will compile and run on Mac, just might not have pretty buttons. I am totally cool with that, in fact I prefer commandline input, even with GUI programs---I find it easier to type Ctrl-C/Ctrl-V than hunt menus with mouse. Want my program compiled? Generate a new set of Gerbers/RS274?  I type 'make' :)

Gold

@przemek, You're right on!

Blogger

@Carol, slide 6 from the first day says 'The HV9910DB3v.3 can supply a maximum output current of 900mA to drive LED strings from a 9VDC to 30VDC input.' I think you're right that the demo board has a 35V cap on input which limits Vin. Just checking.

Gold

Gerber files are not drawings. So there's no way to note that in Gerber files. If you have a mechanical drawing with tolerances specified, definitely send that along.

Blogger

przemek, the question was if there was any CAM software for Mac. Plenty of solutions for Linux, but...

@przemek Sounds like you can mill your own PCB with a CNC. I think they have hobby CNCs for $1k now. But not sure if they can hold the 10 mil tolerance.

Blogger

Carol, could you not note it appropriately as another hole (arrow, tolerances) in the fab drawing?

Iron

@jenriquez, You can actually import any board outline shape, including cutouts. Or you can draw it, and right click, change shape type to board outline, and that's it. This is much easier in DesignSpark than Eagle.

Blogger

The EMC2 aka LinuxCNC community is a good resource for CAM, and there are several CAM postprocessors to CAD packages like QCAD and FreeCAD.

Gold

Yeah, the CAM stuff hasn't come over yet.

I would specify the required tolerances in the "manufacturing file", a text document with all the specs.

Blogger

@Tenacious  Yes it's getting better. I've played with some open source programs for solid modelling and they're pretty good, But hard core technical programs or custom technical programs to control particular machines tend to be PC only.

Blogger

Having said that, I used KiCAD and GNU PCB myself

Gold

Yes, but is there a correct way to specify it in the PCB document?

On Linux a lot of Windows software simply works via Wine emulator. LTspice is a glorious example: Mike Engelhart makes sure (i.e. tests) under Wine, but a lot of other software installs and works just fine. I haven't checked DesignSpark but I will.

Gold

@Tenacious I would check with your board manufacturer to see what their routing tolerances are and see if that's good enough for your application. Holes and slots may be different tolerance again. And be careful if it is size or alignment that is more critical. 

Blogger

Is it possible to have non-circular drill holes for parts in DesignSpark? As an example, when using power jacks in Eagle, I have to place two adjacent drills because of the shape of its terminals.

Iron

It's getting a lot better these days, Carol. Eagle, Rhino, and lots more. SketchUp was practically Mac first. XD

I long ago gave on wishing for technical software to be available on Macs. That's why I still have a Windows XP machine. 

Blogger

Carol, this may be more of a question for tomorrow... when specifying the dimensions for your finished board, what is the correct way to specify the mechanical tolerances of the routed edge? I need a board to fit into a very difficult holding slot in a case.

"No Mac or Linux version" is a SERIOUS DesignSpark limitation.

There are a lot of pluses for DesignSpark. But as someone pointed out, Eagle can be used on Macs.

Blogger

Carol -- Thank you! See you tomorrow.

Iron
GOLD

Don't take my word for it. Always check on the datasheet.  Not sure where you saw the 60V, but HV9910 should be able to do world wide voltages.  Maybe 60V was for the demo board?

Blogger

Also note -- no time limit for DesignSpark. It is missing some TI MU's I use -- but maybe I can import the Eagle Version from TI -- there is library import.

Seems very worthwhile after very short eval.

Iron

DesignSparks does not seem to have any limitations -- at least for my purposes -- multi layer -- boards to One Sq meter -- unlimted components -- modifiable library etc.

Iron

thanks for the live (and working audio) this was great.

Iron

Thanks Carol. Your rule of thumb for increased pad size is a good idea.

Iron

Design News email (took previous classes)

Iron

What are the limits on DesignSpark? Does it stop working in 30 days?

 

Iron

Today's program is now available as an archive.

 

Blogger

I found this through a Design News email.

Gold

Apologies if it was covered and I missed it but what is the range of input voltages to the HV9910? One of the slides implied that it takes up to 260V so it could be fed from rectified worldwide AC, but another slide listed Vin max 60V

 

Gold

Thanks Carol and Rob. I activated DesignSpark a few days ago and still trying to test drive it. maybe on the weekend.

See all tomorrow.

Iron

found out from friends and the site itself when ordering parts and tech-sheets.

Design News E-mail, I am continuing on from the wireless sessions.

 

Iron

digi-key suggestiion on an email

When you load the software there are additional tutorials available -- it is multi-layer.

Iron

Yes you can use more than 2 layers. I think it's unlimited on Designspark.

Blogger

@Rob: I learned about the Digi-Key Continuing Education Center via an email sent from Design News on January 10, 2012.

Iron

@Carol   Thanks for a great presentation.  Is there any documentation, cheatsheet that defines all of the short cut keys, Manf symbols, etc.

Iron

By email from Design News......  Except for audio issues good lecture.  Thanks Carol

Iron

Also if you have a Google account you can upload PPT to your Google Drive and see it there (sadly it doesn't seem to show the slide notes)

 

Gold

Thank you, note would have been nice to have had constant audio for this pres.

I originally heard about the classes on Design News and have been following most of them ever since.

Iron

Thank you Carol, See you tomorrow.

heard about the class from the CEC list of courses.

Iron

Original information about classes was in email from Design News.

Iron

Can we use more than 2 layer with this software?

Iron

Heard about the class from here on the Design News site.

Iron

I received an email from Digikey on this class.

heard about class from coworkers

On the Continuing Education Schedule

Iron

good lecture, thanks Carol

Design News email

Thnaks, Carol - great session again.

Iron

Thank you Ms Carol Lenk!!!

Thank you Rod!!!

Iron

@Carol: you did cut out for a few hundred milliseconds but it was just a blip and then it was over.

Iron

Carol will soon be available to answer your questions. So please post your questions here.

Blogger

Recommend installing OpenOffice---the PDF would not have slide notes which Carol uses for supplemental info.

Gold

Rob,  Since not everyone has MS Powerpoint or may not be able to install the free Powerpoint viewer (IT locked down machine for example) please distribute the Slides as a PDF file.

 

Iron

Digikey, some Mouser, occasional Jameco, rarly others

Iron

We normally oerder from Digikey, Farnell and Mouser.

Iron

hand soldering is important. be nice to the rework and repair guys (and girls).

Iron

"drawbridge"???  You mean "tombstoning".

Iron

Is 'drawbridge' the same thing as tombstoning?

Gold

Hello all from Tucson

Iron

Order from Digi-Key and Allied (better selection of transformers and heat sinks)

Iron

My friend, you have to improve the class room. It is not user friendly. 

@Rob: our purchasing department makes the selection of vendor.

Iron

60% DigiKey, 30% Mouser, 10% other

Iron

most work and personal orders are from you know who... Digikey!

Iron

who ever can supply them quickly

Iron

Order components from Digikey and Newark so far. May add others that specialize in some lines --- better pricing.

Iron

Digi-key they have the best way to find components

Iron

Question for the audience members: Who do you order you components from?

Blogger

clicked the pause/start in the DN-audio bar few times and now audio is on.

Iron

I'm sorry. I failed to follow slide 13 the FET

Thanks for the tip, clicking on the DN Audio bar several times got the audio on for me!

Iron

the .ppt should really be a .pdf

Iron

Listen; the issue is not about whether I have OpenOffice or not; the issue is that the Powerpoint format of the slide document generates errors if you open it in anything OTHER than Powerpoint. we should have a document in the correct format to open it flawlessly in whatever we chose to use.

I switched to Chrome and it is working so far.

Gold

First time I've had audio issues also.  Though refreshing gets it back for a while.

Iron

We're now on slide nine.

Blogger

on the DNaudio bar, at the top; clicked the 'pause/start' several times. audio finnally stayed on. 

Forgot that I have also used Caydence only one that required a PHD to understand.

Iron

We're now on slide eight.

Blogger

@dbushnell

Yes having that happen to me. First time I ever had audio problems.

 

Iron

Can refresh audio returns and back out??

you're right. the audio bar IS different. tech support trying to fix the problems?

Iron

I have never had audio problems before. Same issue with the red bar.

Gold

Audio is working fine on my IPHONE browser.

Iron

audio is 100 % better than all previous days combined.

i.e. it is finally working live for me.

Iron

No audio problem . Internet Explorer 9 Browser. Miami by the way

Iron

missed the first two minutes...Now I'm really lost in the design of the  circuit..

might have better results on arcieves.

I'm still having no audio problem on Chrome but it went out completely on Firefox and MSIE.

Iron

Looking for a program, haven't used a package before.

 

Iron

Audio fine here, slides are in color and look good, I understand the material and my Pepsi is cold.  Life is perfect!  :)

Audio keeps droping out. Slidea are messed up.

Gold

Same here - audio is absolutely atroucious!

Iron

No audio problems here in Colorado.

Iron

Anyone else notice that the DN Audio bar (above Carol's picture) has a different appearance today?  Whenever the red progress bar reaches the right edge, the audio starts buffering, the puase icon appears and I have to manually click on it to restart the audio.

Iron

this sesion audio is bad.  never have problems before, just today.

Iron

I keep loosing audio. This is a very bad system.

Gold

Have had no problem with the audio yesterday or recently but am having no audio after the opening announcement at 2pm EST today...........

Iron

I have used PCAD, OrCAD, PADS (my all time favorite) plus a few others long out of business. Currently use Utiliboard at work and Eagle at home. Designspark looks interesting, but I am always worried about long term support/availability. I have a bunch of boards I can no longer update because the CAD package is no longer available/supported.

Iron

We're now on slide six.

Blogger

refresh restarts audio then dies after 2/3 seconds.......

@Tenacious Techhunter  Go to openoffice.org and download Open Office.  It will look at and edit all MS Office formats except .pptx.  It will do .ppt though.

Iron

goodafternoon, everyone

 

Iron

We're now on slide five.

Blogger

Kelleyrn - yes audio has started, try browser refresh... or turn on the speaker?

Iron

I get blocked by my IT

 

Iron

Firefox has been bugged over Flash for months now.

Have used microPCB wrote this one myself, Great Southwest, Orcad, Pads

Iron

Yes the presentation is on now and there is audio. 

Blogger

There is audio. Works fine in Safari.

Is the presentation on now? Is there audio?

 

Gold

Where can we go to get details on the pads to ensure that what I pick matches with the part data sheet?

Iron

i have never had audio problems until today,

(do not want the chroma browser)

We're now on slide four.

Blogger

I meant the alternative to Powerpoint's format, which generates errors in anything other than Powerpoint. PDF or whatever Open Office uses would be better.

I have used PADS and PCAD where it was bought by the company

 

Iron

Express PCB and PCB123

Iron

have used Orcad in the past.

Iron

Currently worh with Cadsoft Eagle

Iron

altium, pads, eagle, cadence

Iron

I had trouble with audio on IE and Firefox on one computer but Google Chrome works fine.

Iron

Now-- Allegro, Expedition, Sigrity, SiSoft

in past lives -- Orcad, Pads, PCAD

Iron

We're now on slide three.

Blogger

Orcad Capture for Schematics

Allegro PCB Editor for layouts

Iron

I'd rather pay Eagle for their full version than to waste that money buying a copy of Windows. At least with Eagle, my money is being well spent on product development.

ExpressPCB, DesignSpark, Utiliboard, Orcad

 

 

Iron

If you lose audio, you might try using the Chrome browser.

Blogger

pcad, altium, allegro, cadence

Iron

Currently working with EAGLE.

Iron

The alternative to "PowerPoint" is Oracle's OpenOffice suite. It's free.

maybe the question should be 'which one have you not used '

Iron

Altium

Eagle

Orcad

protel

Iron

Used Eagle -- now DesignSpark looks better.

Iron

I have used Xilinx and pspice

Iron

wow, the audio is working for me today.

I see that a different graphic is being used for the player.

Thanks, this helps alot.

 

Iron

audio is only lasting 20 seconds, then it is dropping out.

 

Iron

@DaveWR,  I agree,  I need a larger size board and can't pay for the Eagle software out of my pocket.

Iron

Why we do not have some music to know where are we?

Good afternoon, sunny and 54 in northern Minnesota.

Iron

The package is free.

No limit on board size.

It's multi-layer

It's easy to use.

What's not to like at that price?

Iron

Ok, Mr Rod  Spiegel I just already download the slide!!. That is the way to teach this class?

Iron

good day to all from "sunny" edmonton, ab

 

Iron

How is the weather in The Capital of Canada?

hi from ottawa ontario

 

Iron

Also, it's been 6 months, and STILL no alternative to the Powerpoint deck?

I was a bit disappointed in yesterday's class... I would have prefered a general purpose "Approaches to using PCB design software". It is lousy to have a class on such specific PCB Design Software that is PC only when you could have one on Eagle, which is more widely used and cross-platform.

RodPinar,

There is a slide deck you can download above this window.

Blogger

How can I have video information for this class?

 

Iron

Hello from cool Wyoming

Iron

Howdy from Fort Worth, TX !

Iron

Hello from SUNNY Miami ?????

If you right click on the audio bar from yesterday it SHows JW Player now as being an alternative

http://www.longtailvideo.com/players/jw-flv-player

Iron

HI from Sili Valley - downgraded Flash and audio worked in FFox yesterday, done with that buffering.

Iron

good morning all from Edmonton, AB

Iron

Helllo from upstate NY

Iron

Using Chrome, but still get buffering continuously.

Iron

@bbiehler 

Try accessing the class through the Chrome browser. Those using Chrome don't seem to have any problems with audio

Iron

Hello from Albuquerque, New Mexico.

Blogger

Trying to catch the live audio today. Have not had much luck the last two sessions.

Iron
Hello from Mesquite, NV.
Iron

Good Morning from Silicon Valley, CA.

Iron

Howdy folks, from the beautiful Missouri hills!! :)

Hello from Sunny SE Lake Simcoe, Ontario Canada.

Missed yesterday -- got DesignSpark package -- caught up I hope.

Package looks good.

Iron

Curious what should be done when different manufacturers of the "same" part have slightly different suggested footprints, which are sometimes both different than the one found in IPC documents.

Iron

Looking forward to this one.

Platinum

If you have trouble with audio during this program, try accessing the class through the Chrome browser. Those using Chrome don't seem to have any problems with audio.

Blogger

-Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

 

Blogger

-Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Blogger


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