C3 Protoboard Engineering Drawings

jazzed

I would like an Engineering drawing of the C3 Protoboard.
Key dimensions for header placement are apparently not available.

Bill Henning

If you have access to Proteus v7.7 you can get the schematic and layout files from the ftp site.

jazzed

Bill Henning wrote: »

If you have access to Proteus v7.7 you can get the schematic and layout files from the ftp site.

I want engineering drawings not a requirement to download, install, and learn software that i'll never use more than once.

This is not an unreasonable request.

Bill Henning

of course it is a reasonable request; I just pointed out one way you could get the information if you needed it quickly.

jazzed

Here's a good starting point. All you have to do is add the dimensions for the headers and the recommended proto-board outline.

Any engineering support at all from Parallax or even from Andre' would be appreciated.

Ken Gracey

Hello jazzed,

Would you prefer a PCB-exported DXF/DWG of both boards so that you can obtain every single dimension you may prefer, or a more fully-dimensioned graphic image showing the additional details about headers and connectivity between the two boards?

So that we can best help you please tell us what you expect. I think exported file could happen instantly, but I'll need to put the fully-dimensioned drawing approach into the queue to get done in the next couple of days.

Thanks,

Ken Gracey

jazzed

Ken Gracey wrote: »

Hello jazzed,

Would you prefer a PCB-exported DXF/DWG of both boards so that you can obtain every single dimension you may prefer, or a more fully-dimensioned graphic image showing the additional details about headers and connectivity between the two boards?

Ken, Thanks for your quick response.

A standard engineering drawing in a .pdf file showing key dimensions for the C3 ProtoBoard is best.

I would like board outline, mounting holes, bottom side keep-out areas, any available board header inter-connections, and expected board to board clearance. It would be nice to have a perspective drawing of the stacking concept.

There are several boards that I want to design for C3 later and this information is key.

If the C3 ProtoBoard was available for sale individually, I would buy one for sanity check, but not for getting measurements.

When do you plan to release the C3 ProtoBoard as a stand-alone product?

Thanks,
--Steve

Ken Gracey

Okay Steve - we can do that. Please give me through Friday evening to arrange these drawings. They'll be posted on this thread before they appear on the Parallax web site.

- Ken

jazzed

Ken Gracey wrote: »

Okay Steve - we can do that. Please give me through Friday evening to arrange these drawings. They'll be posted on this thread before they appear on the Parallax web site.

- Ken

Thanks a bunch Ken.

AndreL

Jazzed/Steve,

So, here's what I did, I went into that original dimensioned drawing and added the locations of the headers. Each header cluster is on 0.1" spacing, so once you locate one, you have them all in any cluster. The coords of the top left cluster, right side, and bottom are all there. Took about 3 hours of photoshoping, since the image is already so busy. That said, I highly recommend that you use the gerber files for your reference, if you're going to make a PCB, then you should have a gerber viewer to open them up, then you can get any dim in seconds and double check. To that end, I have put the gerbers in standard format in a zip along with some photos, and the board itself dimensioned more thoroughly (which I will try to add to this reply). First, here's the zip:

ftp://ftp.propeller-chip.com/PropC3/Designs/Schematics/C3_Proto_Add_On_Dim_Gerbers.zip

And fingers crossed the BB let's me add a photo correctly, since I can't seem to add a file if I am not the originator. Nope, only allows links - that's lame Anyway, go ahead and open the zip and parse thru it, everything you need should be there. If you can't read gerber files with your PCB tools then I can convert all the layers to DXF files in worst case, but hopefully you can open standard Gerber files since that's the best format.

Let me know if this works out. Also, give ,me your address in a PM, and I will send you a blank C3 protoboard for referenece, I have 100 extra from a previous test run.

Andre'

jazzed

AndreL wrote: »

Let me know if this works out. Also, give ,me your address in a PM, and I will send you a blank C3 protoboard for referenece, I have 100 extra from a previous test run.

The files are very helpful. What is the expected board to board clearance? I have to assume some type of stand-off to keep 5V from shorting with the Keyboard shield.
Thanks.

AndreL

The thing that sets the clearance is the height of the PS/2 connector, vga connector and the power port, they may vary run to run, so no matter what you can't affix the proto board any closer than their height. That said -- look at the C3 Add On board kit, it has the heights of the stand offs etc. exactly used in the kit, but 1/2 inch is a good height to set the board off the C3. Just want to make sure the headers get a good snug fit, and there are a number of permutations to how you might want to do the headers, female on top thru the add on with male into C3, or male - males, etc. Lots of permutations. Thus, if you are going to design stuff, definitely make sure you have a C3 and an add on board, so you can play with heights and header configurations to suit your needs.

Andre'