Forum - Ordering boards

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[#14]

I thought I already posted this but now I can't find it, sorry if it's repetitive.

Basically I am going through the parts list and I see the github specs for the boards. But as someone who has never had a board made or parts assembled I'm really not sure how to interact with a company like Sierra. Would it be possible to make a mock order for us? Or tell us what to say or how to even start on their website or what to ask for from a person?

I think we need a total of 3 boards, right: LED, CMOS board and DAQ box board. The latter two require that some parts be put on by the company. How do we specify which parts and how? Are those already on the spec sheets on github? Total newbie here so I'd love to learn what's where and how to start the process. I assume I'm not alone among neuroscientists in not knowing how to go about getting a board made with the parts I want (and in the right spots), so maybe it'd be generally useful to share how to go about this?

Thanks again Brendon

Posted by Brendonw1 on 27 January 2016 at 18:15.

Hi Brendon,

Firstly I would like to thank you for using our discussion board to ask these questions. I'm sure these threads will be helpful to many other miniscope users in the future.

PCB fabrication and assembly will definitely be new to a lot of users of our scopes. Below outlines the general order flow to get assembled PCBs:

PCB Fabrication
PCB fabrication refers to the actually printing of the circuit board. In order for a company to fabrication a PCB they need the copper layout of each layer of the PCB. They will also want the layout of top and bottom solder masks as well as the silkscreen layout. Each of these layouts is stored in its own Gerber file. Along with the Gerber files the PCB fabrication house will also want other information relating to the specs of the PCB. This information can be found in the '.docx' file in the 'Fabrication Files' folder on GitHub. All you should need to do is zip all the files in the 'Fabrication Files' folder and email them to the PCB fabrication house to get a quote.
PCB Assembly
Once the PCB has been fabricated you will need to have it populated with electrical components. This process is called assembly. In order for a PCB assembler to know which component goes where they will need a Bill of Materials (BOM) file along with a Pick and Place (PnP) file. These 2 files effectively tell the assembler the position of each component along with the component's part number. The assembler will also need other assembly information which is listed in the '.docx' file in the 'Assembly Files' folder. All you should need to do is zip all the files in the 'Assembly Files' folder and email them to the PCB assembly house to get a quote.
Posted by DAharoni (administrator) on 27 January 2016 at 22:37.
Edited by DAharoni (administrator) on 28 January 2016 at 06:05.

I meant to mention one more thing. I plan to get a series of price quotes from our preferred PCB Fabrication and Assembly House (Sierra Circuits) this week and will be sharing the price quotes on our site. If you just want to order the exact PCBs on our wiki you should be able to just reference these quotes and Sierra Circuits will handle everything else.

Posted by DAharoni (administrator) on 27 January 2016 at 22:39.

Super helpful. I think I could do all of that. But if you actually set up a series of quotes we can just call them up and reference that would be absolutely perfect. We coudl say we want to order according to quotes ABC and XYZ and they mail things to us (once we pay), right?

Posted by Brendonw1 on 27 January 2016 at 23:06.

That is exactly what I am in the process of setting up. I am hoping to have everything in line by the end of the week. I'll update you on this forum once I know more.

Posted by DAharoni (administrator) on 28 January 2016 at 05:04.

We are trying out a pcb fabrication and assembly company in the Netherlands. We will keep you posted of our progress. Might be good to know for others in Europe that do not want to order directly from US.

- Tycho

Posted by Hoogland on 2 February 2016 at 13:45.

@Tycho Could you tell us what the name of the company is?

Posted by Ivo.sonntag on 3 February 2016 at 12:17.

Hi Ivo, the company name is KCS (http://www.elektronica-assemblage.nl/index.asp?page=home&taal=en). They will consider producing more PCBs if ordered in sufficient numbers (minimally 100), but currently do this as a side project for us.

To get an idea of how high demand is I have made a spreadsheet available (for European users especially), where you can fill in required PCB quantities:

https://docs.google.com/spreadsheets/d/1Oe_fX_4wobbePmkIUYOzpKBnNbHiiQgP_ZtZtg5p6XU/edit?usp=sharing

Posted by Hoogland on 10 February 2016 at 11:02.

Update: we are facing issues with the PCB manufacturer not able to handle some of the specifications for manufacturing. May revert to group order w/ Sierra Technologies.

Posted by Hoogland on 16 February 2016 at 21:16.

Update 2: seems like manufacturing can be outsourced to other local company, so we'll continue development in Netherlands.

Posted by Hoogland on 1 March 2016 at 21:23.

Are there any group orders ongoing for the US?

Posted by Kemerelab on 23 March 2016 at 18:48.
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