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To place this order, you need to first upload the gerber.zip file from the github repository to www.freedfm.com, which is the automatic file checker used by Advanced Circuits. You will need to tell FreeDFM which file corresponds to each layer, and you must specify the inner layers 2 and 3 as "positive polarity". This is shown in the screenshot below.
Then enter the following specifications:
- Part Number: 1. This doesn't actually matter, but you can't leave it blank.
- Layer Count: 4
- X Dimension: 6.3
- Y Dimension: 6.415
- Silkscreen sides: Both sides
- Soldermask Color: Green (cheaper) or Black (looks nicer)
- Copper Weight Inner: 1oz (shown as 0.5oz in the below screenshot, but 1oz is the same price and is probably better)
- (Not necessary with FreeDFM) Smallest Hole Size: 0.015
- (Not necessary with FreeDFM) Top SMD Pads: 1058
- (Not necessary with FreeDFM) Holes Per Board: 1370
- ITAR: No
- Quantities: Something like 1/2/5/10 will give you an idea of the relationship between price and order size.
Everything else you can leave as the default. The website will perform some automated checks on the files, which will take about 30 minutes. Then it will produce a quote matrix, in which the price is a function of the production time and the quantity you want. You can change the quantity to 1. The quote will be around $560, but if you contact them and mention your academic affiliation, they should offer you a 50% off coupon code.
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