PCB CAD for slider

[LGR]

Does anyone have Eagle device files for the M-shaped pads used to make a slider? And also, for the complete line of PSoC chips? There are some PSoC chips on the Cadsoft site, but they're pretty old.

[ravo]

I am not familiar with Eagle - I am using Mentor PCB ( formerly PADS).
The Cypress PSoC microcontrollers library you can download directly from CADSOFT homepage - under DOWNLOAD section. Here is an direct link:

http://www.cadsoft.de/cgi-bin/download. ... /libraries

ftp://ftp.cadsoft.de/eagle/userfiles/li ... smicro.lbr
ftp://ftp.cadsoft.de/eagle/userfiles/li ... smicro.zip

Regards

Radim

[dielectric]

I'm making one as time permits, and there are a couple of slider elements in there. They are both 1/2" wide elements, but the "pins" are on different sides of the elements.

Let me know if you have trouble with this library, I'd like to release it for general consumption. Not every part is in there yet, but I have the bulk of the 21K family, I think I've got 24/27K covered, and part of the 29K. It's tedious work, but it makes a long flight go faster.

[LGR]

Sorry for taking so long to reply; got side tracked. It opens just fine. For my application, they're both a little on the large side. If I may ask a dumb question, I don't see how to create filled geometries like that, and I don't see how to adjust the size of these pads. I'm using the free version of Eagle. Is that why I can't do this?

[LGR]

One other comment on the library: The MLF32 package (like every other one I've seen) fails the DRC for 8 mils. The pads are too wide, and thus too close together. Have you seen one that works, and/or just like with the Capsense pads, is there a way to adjust the pad width? Sorry if this is a dumb question.

[dielectric]

Yes, it does fail the DRC. I ignore it, though. I've built several runs of boards without an issue. You can adjust the pad geometry in the library editor if you want to get it "right" by the DRC. I actually stole the package from another device, a TI part I think. It looked dead on dimensionally.

The capsense elements were created by drawing on the pad layer within the library editor. You can draw whatever basic shape you want and move it to the pads layer, then put an SMD pad in there where ever it makes sense. For the round buttons, I use the SMD pad, put in a big square dimension and set it to 100% roundness. You could get a rounded rectangle, too, which would be a pretty good sensor. You could probably just draw on the top or bottom copper layer and put a via to your trace, but IIRC the DRC/ERC in Eagle throws a fit.

[LGR]

Ok, that seems to work. Cypress recommends a via inside of the pad, and Eagle thinks I'm robbing a bank. I'm beginning to think that no matter what I do, these pads are just unconventional enough to where Eagle is never going to like it.

I put tRestrict around the pads to keep the fill out (again per the Cypress AN), but it's not obvious that that's what's actually what's going to happen, if I get the board built. Am I missing a more obvious way to keep the ground fill from touching the pads?

[dielectric]

I'm not sure, isolate with the polygon tool doesn't work as I'd expect. You might try the Eagle newsgroup for help. Fire up Viewmate or something to inspect the Gerbers after you create them to double-check that your sensors are isolated.

[hildara]

Where can I find a REAL guide to AutoCAD products for civil engineers? I am wanting to find a guide/book that covers AutoCAD Civil 3D 2008 and AutoCAD Map 3D 2008 for civil engineers targeted at a beginner who knows a few basics about AutoCAD. Mainly, I'm wanting to access the additional features of these products. Any suggestions?
_____________________
yahoo keyword tool ~ overture ~ traffic estimator ~ adwords traffic estimator

[nan358]

One suggestion: Try asking in other site than here. You won't find any information about AutoCAD here.

--
Nobu

[kourtney]

How can I plot multiple layout tab cad dwgs in a single pdf file with multiple pages? I am trying to plot cad dwg in pdf format My drawing is compose of 20 layout tab pages which I intend to plot in a single pdf file with multiple pages, how can I do this? Can I use publish...but how?

[Phoenix667]

very nice post............

[smithlanger]

sounds good to me

[marryanne]

I think its enough for PCB drill and router uses for z-axle travel.
Put the drawer sliders beside the table bed. One of each side. .
can take the eagle format, not like the other PCB CAD like protel, orcad..