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One of the advantages of the way FR4 PCBs for example are made is the following: 1) you can deposit a thin layer using an electroless process 2) then now that y
by xt00 8y ago
One of the advantages of the way FR4 PCBs for example are made is the following:
1) you can deposit a thin layer using an electroless process
2) then now that you have a continuous conducting surface you can electoplate to make a thick layer of copper that is quite strong and durable
Anyway, it would seem like with all this work he could have used the laser to define a photomask on copper clad board with some photosensitive material there, then just watch in the iron chloride solution as people have been doing for ages?
2 layer PCBs are really cheap these days and you don’t end up with vats of chemicals left over..
Anyway cool stuff, I’ve tried to do similar stuff and has always just found that paying $50 for a few PCBs is actually much more economical than this type of setup.
- mdtusz 8y agoThe whole reason for experimenting with this was to be able to create traces on 3d printed parts - the test runs were just on rectangular coupons for ease of testing and because he printed what looks like hundreds of them.
- StavrosK 8y ago> 2 layer PCBs are really cheap these days and you don’t end up with vats of chemicals left over.. The problem I have is that I have to wait weeks and get a hundred PCBs when I only want one.
- xt00 8y agoYea check out pcbzone.net I’ve used a number of times for super fast boards. They are in New Zealand but you get stuff in like 3-5 days for even 4-6 layer boards for a very reasonable price. There are many companies like that now. If you are willing to spend around $50-100 for say 5 boards or less there are quite a few options for a few days of waiting.
- StavrosK 8y agoUnfortunately, I'm just a hobbyist and can't justify that much money. It seems to be cheap, fast, good, choose two.
- xt00 8y agoIn the case of PCB's in most cases it takes hours to make stuff, and you need to buy components for the boards and pay for shipping, etc.. so I guess I understand not wanting to pay for something because we all wish it was free, but making PCB's either costs you a bunch of your own time, or money if you buy the components to populate -- which then takes a bunch more time, etc.. so its confusing to me that you are a hobbyist that may be interested in making PCB's, but spending say $100 is is too much money? I mean even buying a laser cutter / etcher is not cheap nor is a reasonably good 3d printer.. I guess I'm just saying it seems like a lot of people never take the plunge making PCB's mostly because they are worried they will make a mistake and "waste" the money, but that's a different point than it being "too expensive".. anyway, I'd say just give it a shot on one of the services that cost $50...
- StavrosK 8y agoI'm not talking about assembly services, I'm only talking about PCB fabrication. When ten boards cost $10, paying $100 for one is too expensive, yes. I can just pay the extra $20 and get the faster shipping option.
- xt00 8y agohttps://www.pcbzone.net/User/QuoteArea.aspx?type=cal https://www.pcbzone.net/User/QuoteArea.aspx?type=cal check that out.. you can get say 5 PCB's that are 25mm x 25mm 4 layers for ~50 euros. yea maybe one day it'll be free shipping at $10 for one board. But until then its more like minimum of $50 plus shipping for a small number of boards.
- bacon_waffle 8y agoI tend to use dirtypcbs, which I don't think is the cheapest around anymore - maybe try https://www.seeedstudio.com/fusion_pcb.html https://www.seeedstudio.com/fusion_pcb.html too. A batch of 12 (2-layer, 1oz, 6,6mil, roughly 5x10cm) boards I got made a couple weeks ago, which were a rush order DHL shipped to New Zealand, totalled roughly $60USD. Without rush processing and quick shipping, I think the same thing would've been a little over $20.
- minxomat 8y agoWell, no. Services like JLPCB or AllPCB have a 1.5 day manufacturing time and both feature express shipping via DHL (APCB for free even). There are tons of services like these. Even 4 layer lead-free boards don't break the bank. MOQ is 1-5 on all of these services. Even here in Germany, where local PCB manufacturing is usually very expensive compared to the options above, services like PCBJoker exist, which are only about 20 to 30 % more expensive.
- StavrosK 8y agoDHL shopping is always more than 20 euros for me. I wouldn't call 35 euros for a PCB cheap.
- minxomat 8y agoTo which country? AllPCB doesn't charge anything for DHL to the US and Germany e.g. MOQ is 5pcs.
- StavrosK 8y agoGreece, I'll check that out, thank you. Looks like it's $20 including shipping, which is more than fair, thanks for the tip.
- jlewallen 8y agoI had a good experience with AllPCB recently. They even reached out for clarification on an extraneous drl file I had included in the gerbers zip accidentally.
- dthal 8y agoI've heard good things about oshpark[1] for hobbyists, but I personally have never used them. [1] https://oshpark.com/ https://oshpark.com/
- pathartl 8y agoI use OSH regularly for prototyping. Their boards are really good quality and I've been happy with them. Sometimes the production times aren't as fast as I'd like, but ordering quantities of 3 usually is very economical.
- RossBencina 8y agoIn addition to the services already mentioned in this thread, this might help: PCBShopper is a price comparison site that will take your board dimensions and other parameters and list the cheapest sources: https://pcbshopper.com/ https://pcbshopper.com/