A lot of people have been asking about how much these boards cost, so it seems worthwhile to post a little something to clear this up.<\/p>\n
I’m not looking to make a huge profit of any of this.\u00a0 Actually it just makes me happy that anyone is interested at all in what I’m doing.\u00a0 So rather than keep my costs under wraps and provide you with a blackbox number, here is the actual amount that it costs me to build one of these boards, by component (in USD):<\/p>\n
Component<\/strong><\/th>\n| Vendor<\/strong><\/th>\n | Vendor PN<\/strong><\/th>\n | Cost ea<\/strong><\/th>\n | Qty<\/strong><\/th>\n | Ext Cost<\/strong><\/th>\n<\/tr>\n | PCB, MM PCB10002 REV B, Simple iPad Breakout<\/td>\n | OSH Park<\/td>\n | PCB10002 REV B<\/td>\n | 3.17<\/td>\n | 1<\/td>\n | 3.17<\/td>\n<\/tr>\n | Connector, DisplayPort, SMD, Molex 0472720001<\/td>\n | Digikey<\/td>\n | WM19271CT-ND<\/td>\n | 5.30<\/td>\n | 1<\/td>\n | 5.30<\/td>\n<\/tr>\n | Connector, FFC, 51 Pos, 0.3mm Pitch, Molex 5022505191<\/td>\n | Mouser<\/td>\n | 538-502250-5191<\/td>\n | 5.56<\/td>\n | 1<\/td>\n | 5.56<\/td>\n<\/tr>\n | Capacitor, Alum Elec, 100uF, 10V, TH, Panasonic EEUFR1A101<\/td>\n | Digikey<\/td>\n | P14373-ND<\/td>\n | 0.33<\/td>\n | 1<\/td>\n | 0.33<\/td>\n<\/tr>\n | Diode, Schottky, dual common cathode, 25V, 1A, TO-261, NXP BAT120C,115<\/td>\n | Digikey<\/td>\n | 568-6921-1-ND<\/td>\n | 0.77<\/td>\n | 1<\/td>\n | 0.77<\/td>\n<\/tr>\n | LED, Green, SMD 0805, OSRAM LG R971-KN-1<\/td>\n | Digikey<\/td>\n | 475-1410-1-ND<\/td>\n | 0.08<\/td>\n | 1<\/td>\n | 0.08<\/td>\n<\/tr>\n | Resistor, 100 ohms, 1%, 1\/10W, 0603, Yageo RC0603FR-07100RL<\/td>\n | Digikey<\/td>\n | 311-100HRCT-ND<\/td>\n | 0.10<\/td>\n | 1<\/td>\n | 0.10<\/td>\n<\/tr>\n | Resistor, 100 ohms, 1%, 1\/16W, 0402, Stackpole RMCF0402FT100R<\/td>\n | Digikey<\/td>\n | RMCF0402FT100RCT-ND<\/td>\n | 0.025<\/td>\n | 12<\/td>\n | 0.30<\/td>\n<\/tr>\n | Resistor, 0 ohms, 0603, Yageo RC0603JR-070RL<\/td>\n | Digikey<\/td>\n | 311-0.0GRTR-ND<\/td>\n | 0.10<\/td>\n | 2<\/td>\n | 0.20<\/td>\n<\/tr>\n | <\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n | Total<\/td>\n | 15.81<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n | Now, not all of these parts are used in the same buildup.\u00a0 The diode and the 0 ohm resistors aren’t installed at the same time; the 0402 resistors aren’t installed at all if the board is to be used for a projector build as they’d be unnecessary, etc.\u00a0 But I will kit all the boards based on this set of parts anyway, so this is the base cost for one unit.<\/p>\n There are additional ancillary costs not rolled into the above BOM.\u00a0 Packaging costs (antistatic bag, padded envelope), pre-soldered wires (if desired), assembly materials (solder paste, flux remover, etc), assemble-it-yourself materials (stencil, if desired).\u00a0 And you’ll note that I have not touched labor yet – if you want me to build up the boards, I will need to charge a nominal assembly fee.\u00a0 I won’t charge you a fortune, but it would be foolish to work for free.<\/p>\n I have quotes out at stencil manufacturers and will query the usual shipping suspects for pricing this week ([EDIT 2013.08.08] Shipping to the continental US is typically $3 for one or two units, shipping international is averaging about $7).\u00a0 The cost is $20 for a kit of parts, I hope the projected cost isn’t more than expected.\u00a0 Labor is going to be the thing that really drives the price – right now it takes me an hour or so to build a board since I’m applying paste by hand.\u00a0 More on this later.\u00a0 If you’re interested, please drop me a comment or an email so I can gauge interest.\u00a0 If a hundred people want one, a $180 professional stencil suddenly isn’t quite so big a deal (this board is too complex for the most inexpensive prototype laser services).\u00a0 Plus then quantity discounts start to apply on components and the BOM cost drops.\u00a0 Which means cheaper boards for all!\u00a0 Yay!<\/p>\n |
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