FS:Quick Turn Prototype PCB - Page 1
Forum section: electronics / general

author: winddy
author_rank: Newbie
timestamp: July 15, 2013, 02:37:21 am
content: Shortest lead time !Competitive price !Fastest deal !Best service !ST electronic, your excellent partnerCome on, why don’t try?pls contact: sales@pcbmaking.com

author: Dave
author_rank: Super Contributor
timestamp: July 20, 2013, 01:37:29 pm
content: Could you give us a few examples of your prices (board specs and prices)?

author: Jon Chandler
author_rank: Frequent Contributor
timestamp: July 20, 2013, 02:22:33 pm
content: iTead and Seeed have spoiled us. We've come to expect transparent simple pricing so we know what boards will cost before submitting Gerber files.

author: winddy
author_rank: Newbie
timestamp: July 20, 2013, 02:44:28 pm
content: first, thanks for your attention,so, introduce some price factorPCB price is composed of the following factorsA, PCB cause the price used in the diversity of different materialsAn ordinary pair of panels, for example, sheet generally FR-4, CEM-3, etc., thickness ranging from 0.2mm to 6.0mm, copper thickness different from 0.5Oz to 5 Oz, all the sheets one on caused a huge price difference; in the solder resist inks, oils and common photosensitive thermosetting green oil also has some of the price difference, which caused prices of different materials diversity.Two, PCB production processes used by different cause the price of diversityDifferent production processes can cause different costs. Such as gold plate and spray tin plate, making the shape of gongs (milling) plate and beer (punch) board with screen printing lines and dry lines, etc. will form different costs, causing prices to diversity.Three, PCB itself difficulty caused by different price DiversityEven if the same material, the same process, but the PCB itself can also cause difficulty different different costs. If two kinds of circuit board has 1000 holes, a plate diameter greater than 0.6mm and the other one is less than 0.6mm aperture plate will form different drilling costs; same as the other two kinds of circuit boards, but the line width type A are greater than 0.2mm, less than one kinds of 0.2mm, can also cause different production costs because of plate scrap difficult higher costs inevitably increase, thus causing prices diversity.Fourth, the requirements of different customers different prices also causeCustomer requirements will directly affect the level of mill yield, as one kind of board by IPC-A-600E, class1 requires a 98 \% pass rate, but according to class3 requirements may be only 90 \% pass rate, resulting in different mill costs, leading to ever-changing product prices.Five, PCB manufacturers prices caused by the diversity of differentEven if the same product, but because of technological equipment of different manufacturers, different skill levels, will form different costs, like many manufacturers nowadays produce gold plate, because the process is simple, low cost, but some manufacturers gold plate, scrap that is rising, resulting in higher costs, so they prefer to produce spray tin plate, tin plate spray so they offer rather than the gold plate is low.

author: free_electron
author_rank: Super Contributor
timestamp: July 20, 2013, 02:51:42 pm
content: Quote from: Jon Chandler on July 20, 2013, 02:22:33 pmNo they didnt. Any pcb vendor worth its salt can deliver a quote based on a few simple criteriaSize , number of holes, diameter of smallest hole , smallest track and smallest gap .The rest is irrelevant.For protyping service tou simple create a few categories and tack on a prive per square cm.For example :8/8 with 14 drill = x amount6/6 with 10 drill = y amountThe lost can be short.

author: Jon Chandler
author_rank: Frequent Contributor
timestamp: July 20, 2013, 03:08:47 pm
content: Quote from: free_electron on July 20, 2013, 02:51:42 pmThe message above yours and any number of messages by PCB fab houses posted here in recent weeks seems to be at odds with your statement.

author: GeoffS
author_rank: Unknown
timestamp: July 20, 2013, 03:12:51 pm
content: Perhaps someone here could come up with a specification for a typical board and get these fab house to quote on it.Best way to evaluate pricing if everyone is quoting on the same thing.

author: digsys
author_rank: Unknown
timestamp: July 20, 2013, 03:27:12 pm
content: I agree with freeE 100% !! Asking people to submit their artwork for a quote is TOTAL BullShit !! and I've been getting PCBs made fora damn long time. The ONLY people who worked that way were the ones that always ripped me off. The only places I deal withnow have fixed prices with FULL specs!! They list the rules in plain English, including the extras rate for designs beyond the base.It's ALL plainly listed on the sites, and I've dealt with many dozens of PCB suppliers in my time. So, I'm calling BS.

author: Corporate666
author_rank: Unknown
timestamp: July 20, 2013, 08:08:28 pm
content: Quote from: winddy on July 20, 2013, 02:44:28 pmThere are dozens of PCB manufacturers that will let you input your board specs and will immediately tell you a price. You don't need to wait for someone to call or email you back, and you don't need to give away your board files first.Would you be willing to give a price on PCB manufacture without knowing any details of the board? Of course not. So why would a consumer use the service without any idea of the price?In my experience, when someone does not want to give their prices, it's because their prices are high and they know if they try to compete on price, they will not get any business.We already know we can get good quality boards from any of the suppliers who give up-front pricing, so what reason would people have to try your service?

author: marshallh
author_rank: Unknown
timestamp: July 20, 2013, 08:12:43 pm
content: Once you give your email to a china pcb shop, you will get tons of junk, and offers from competing shops as well..I did business once with PCBcart, the pcbs were a complete trainwreck and failed after several thermal cycles, plus my address was sold. Take the necessary precautions.

author: winddy
author_rank: Newbie
timestamp: July 26, 2013, 07:38:21 am
content: Good news!!!Single/double layer: L,W is within 5cm : 25USD sampleSingle/double layer: L,W is within 10cm: 36USD samplemore details, please contact me, thanks

author: GeoffS
author_rank: Unknown
timestamp: July 26, 2013, 08:24:19 am
content: Quote from: winddy on July 26, 2013, 07:38:21 amHow about you provide some details of your capabilities other than just a random price on an undefined board?

author: nctnico
author_rank: Super Contributor
timestamp: July 26, 2013, 08:27:12 am
content: Quote from: Corporate666 on July 20, 2013, 08:08:28 pmThat depends a lot on how many boards you want to have made. For just a couple the startup costs are dominant and that is pretty much fixed so the costs are setup + board area cost / yield (yield is dominated by the process which is track width and clearance). I suggest Winndy looks close at how Eurocircuits.com's calculator works and copy that on his website.OTOH if you need a large number of boards then it may be better to call a broker for a good price but it doesn't hurt to get multiple quotes. Then again, if you need a lot of boards and outsource production then its better to let the assembly house order the PCBs and stencils from their preferred supplier so they have complete control over the entire process which usually gives better end results.

author: AndyC_772
author_rank: Super Contributor
timestamp: July 26, 2013, 09:24:51 am
content: More importantly, it also gives you a single point of blame if the boards don't work.If you buy your own boards, then get them populated by a contractor, you're stuffed if it turns out the boards are faulty. The board manufacturer might replace the bare PCBs, but you won't get the value of your assembled boards back.

author: Entropia
author_rank: Regular Contributor
timestamp: August 07, 2013, 05:34:13 am
content: My guess is winddy is based in China and he just brokers orders to the same factories iTead and Seeed use, but his prices are worse. 25 USD for a single 5x5cm 2-layer board, really?Winddy: What is the minimum clearance/track width? What's the minimum annular ring and minimum finished hole dia? Is silkscreen included in the price for top or bottom or both?