CStamp Eagle Template Options

[cranwell]

I had a PCB made using the CStamp Eagle Template from CSTAMP Library 2 (supposed to be.027 hole dia).

The finished board fits the CStamp directly but not the CStamp socket as the holes are closer to .023 inch.

Is the library correct or should I have used Library 1?

[Orlando Hernande...]

The hole has 0.027" diameter, but when hole diameter is quoted, it does not count plating thickness. That is the difference you are seeing.
Both Eagle parts for the C Stamp are for the C Stamp, not the sockets.
If you want an Eagle part for the socket, please send us email to tech support. We can make it for you and send it back to you via email.

[cranwell]

The hole has 0.027" diameter, but when hole diameter is quoted, it does not count plating thickness. That is the difference you are seeing.
Both Eagle parts for the C Stamp are for the C Stamp, not the sockets.
If you want an Eagle part for the socket, please send us email to tech support. We can make it for you and send it back to you via email.

I measured the pins of the socket and they are .03 inches by .02 inches (oblong). Even if unplated, the socket wont fit into a .027 inch hole.

I'll email tech support but it's too late for this board. I will cut down the socket pins to fit.

Thanks

Pete

[cranwell]

I measured the pins of the socket and they are .03 inches by .02 inches (oblong). Even if unplated, the socket wont fit into a .027 inch hole.

I'll email tech support but it's too late for this board. I will cut down the socket pins to fit.

Thanks

Pete

Library 1 has a CStamp template with .02 inch hold dia. This is the same as the CStamp & does not allow mounting the Cstamp when the hole is plated. I suggest you remove this template from the web site.

Library 2 has a template .027 inch which exactly fits the CStamp WITH plating but will not allow for a socketted mount. I suggest you make this clear on the website.

It would be nice if youcould post a template that would allow your standard C-Stamp socket to be mounted. Hole size .03 inch AFTER plating and mark it as appropriate for mounting with a socket.

I will need to mount the Cstamp directly to the board, without socket. I had hoped not to do this.

Thanks

Pete

[Sonny]

Good to know!

I am getting ready to design my first board to host the stamp. It will be my first project in Eagle as well, so I have a lot to learn.

Are there any other undocumented C-stamp related "issues" related to pcb design that you know of before I start?

I too would like to socket the stamp on the board if possible, So I guess Ill be hitting up tech support for a new template...

Thanks

-Sonny

[LRF]

Library 1 has a CStamp template with .02 inch hold dia. This is the same as the CStamp & does not allow mounting the Cstamp when the hole is plated. I suggest you remove this template from the web site.

Library 2 has a template .027 inch which exactly fits the CStamp WITH plating but will not allow for a socketted mount. I suggest you make this clear on the website.

It would be nice if youcould post a template that would allow your standard C-Stamp socket to be mounted. Hole size .03 inch AFTER plating and mark it as appropriate for mounting with a socket.

I will need to mount the Cstamp directly to the board, without socket. I had hoped not to do this.

Thanks

Pete

Pete,
I would consider the board to be defective. Unless it was strickly stated by the vendor that hole diameters are before plating, the vendor needs to insure that the product deliveried meets the requirements of the customer, you. However in this case it looks like both the customer was wrong in describing what they wanted and the supplier not meeting the specs, unless as I have stated above.

This is not about the vendor, but always about meeting the customer requirements.

Along time ago, a long time ago, right after AWit made the Eagle parts (I think I was the one who requested it) I notified AWit the Eagle CStamp was wrong for pin size. I thought they had fixed it.

[cranwell]

Pete,
I would consider the board to be defective. Unless it was strickly stated by the vendor that hole diameters are before plating, the vendor needs to insure that the product deliveried meets the requirements of the customer, you. However in this case it looks like both the customer was wrong in describing what they wanted and the supplier not meeting the specs, unless as I have stated above.

This is not about the vendor, but always about meeting the customer requirements.

Along time ago, a long time ago, right after AWit made the Eagle parts (I think I was the one who requested it) I notified AWit the Eagle CStamp was wrong for pin size. I thought they had fixed it.

Well I have the board & I filed the socket pins to "sort of " fit the holes.

When I submitted the board I sent an email stating that the template I used and that I had intended to mount a socket and specifically asked if the template was correct. I got the feedback that this was OK. (At the time I didnt have a socket to measure the piun size) It aparently was not.

The only other comment on a socketed C-Stamp is the C-Stamp does not sit very deeply into the socket & tends to work loose. In my case, I am in a high vibration environment. It was suggesteed I use a cable clamp to hold the C-Stamp into it's socket. This is a cheap expediant fix but not really satisfactory.

I will live with these problems until I rework the board to take a PIC18F452. I'll be short a couple of digital outputs but its a $6 part as compared to $44 and the socket fits. I need to recode the app in assembler or C18 C anyway. I also need Timer 1 so I can implement a TOD clock along with the application and taking total control of the code gives me that option.

Cheers

Pete

[LRF]

Well I have the board & I filed the socket pins to "sort of " fit the holes.

When I submitted the board I sent an email stating that the template I used and that I had intended to mount a socket and specifically asked if the template was correct. I got the feedback that this was OK. (At the time I didnt have a socket to measure the piun size) It aparently was not.

The only other comment on a socketed C-Stamp is the C-Stamp does not sit very deeply into the socket & tends to work loose. In my case, I am in a high vibration environment. It was suggesteed I use a cable clamp to hold the C-Stamp into it's socket. This is a cheap expediant fix but not really satisfactory.

I will live with these problems until I rework the board to take a PIC18F452. I'll be short a couple of digital outputs but its a $6 part as compared to $44 and the socket fits. I need to recode the app in assembler or C18 C anyway. I also need Timer 1 so I can implement a TOD clock along with the application and taking total control of the code gives me that option.

Cheers

Pete

Best of luck. I remember the wire tie comment and thought it was a bit grade schoolish.
I am stepping out also, 32 bit. CStamp said they were going to expand but it seems a bit stagnant. Send me a PM.

[cranwell]

Best of luck. I remember the wire tie comment and thought it was a bit grade schoolish.
I am stepping out also, 32 bit. CStamp said they were going to expand but it seems a bit stagnant. Send me a PM.

I tried to PM but the messenger does not work.

My email is <pete at pcranwell dot com>