Example Device Design

[Brian Bender]

Hi,

Is an Autocad version of the example device design (with contact pads, wires, etc.) available anywhere? I'd love a drawing I could start with and modify that already has some correct spacings (contact pads/etc.) to get some masks made and start fabricating.

Thank you,

Brian

[Ryan Fobel]

I've attached the DXF file of our generic 90-channel device (can be
opened in Autocad or Inkscape). The second attachment (the one with no
extension) can be opened in Microdrop from the "File/Device/Load"
menu.

-Ryan

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[Mindy Simon]

Hi Ryan,

I just printed out a mask I designed using the spacing on this layout and it doesn't appear to line up exactly with the pogo pins on the DropBot. In the dxf above, the pitch between the contact pads on the left (P1) and right (P1) is 61 mm by my measurement; this pitch measured on the pogo pin connector board is more like 64 mm.  Small difference but it causes half the electrodes to not line up with pogo pins. The other dimensions seem to be fine.

Is it possible that the file you posted be from an earlier version of the hardware, or are my measuring skills lacking?  :)

Thanks,
Mindy

[Ryan Fobel]

You're right, that mask was originally designed for an old connector.
It's slightly asymmetric and it may not line up perfectly, but that's
the mask we're still using and I can't say I've noticed any problems;
sorry if it's causing you problems!

-Ryan

[Dino Chan]

I have re change the design to 63.5mm

you can see the attachment.

[Josh Heinemann]

Thanks Dino

[dorothy silverman]

Just letting you know, the pdf's for your chip aren't the correct size. Much larger than the pogo pin connector. 

On Thursday, April 2, 2015 at 5:18:03 AM UTC-7, Dino Chan wrote:

[Josh Heinemann]

Good to know, thank you Dorothy.  Do you have a correct file you would be willing to share per chance?  I would greatly appreciate it.

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[dorothy silverman]

Yes I do! Will post it hopefully tomorrow or friday. 

[dorothy silverman]

Here's the resized DropBot pin connector Josh.

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[Josh Heinemann]

Awesome, Thank you Dorothy!

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[Josh Heinemann]

Sorry, I meant Dot ;)