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Re: Are these sufficient files to have boards made in China please?
开云体育Hello Rob,? ?Thanks for your e-mail i just found lurking in the wrong folder (my filters are complex and subject to the odd idiosyncrasy... ;)) It's an industrial device to clamp a signal from a pressure sensor at a given level to bypass safety features! Best regards, ?Chris ? ? ?mailto:chris@...
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Re: Are these sufficient files to have boards made in China please?
Hello Dave, and all who so kindly replied, apologies for my late
response, work took me away from home. Special thanks to Dave who has been an absolute star in converting these files to a supported format. I will now approach a couple of fabrication houses and I'll report back as to how I get on, it's all very much appreciated!! Monday, January 6, 2020 Best regards, Chris mailto:chris@... D> Chris: D> ? I loaded the design files into Kicad and produced the Gerber files.? D> I ran them through the jlpcb.com Gerber Checker. D> You can get 5 boards for $2, 10 boards for $5 or 100 for $18.90 plus D> shipping.? The last boards I ordered were shipped by DHL and arrived in D> under a week! D> ? A couple of comments.? D4, in series with +12V, is backwards. Also, D> the board could use silkscreen noting the board title as well as the P1 D> thru P4 connections. D> Dave - WB6DHW D> <> D> On 1/5/2020 1:51 PM, Chris Wilson wrote: 05 January 2020 D> |
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Re: Are these sufficient files to have boards made in China please?
开云体育Its good to see the Kicad files contained everything required to complete the gerber file set. So... what is it??? A power supply?
On 01/05/2020 11:49 PM, Dave wrote:
Chris: |
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Re: Are these sufficient files to have boards made in China please?
Chris:
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? I loaded the design files into Kicad and produced the Gerber files.? I ran them through the jlpcb.com Gerber Checker. You can get 5 boards for $2, 10 boards for $5 or 100 for $18.90 plus shipping.? The last boards I ordered were shipped by DHL and arrived in under a week! ? A couple of comments.? D4, in series with +12V, is backwards. Also, the board could use silkscreen noting the board title as well as the P1 thru P4 connections. Dave - WB6DHW <> On 1/5/2020 1:51 PM, Chris Wilson wrote:
05 January 2020 |
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Re: Are these sufficient files to have boards made in China please?
开云体育Just for some information here......... for anyone who wants to get PCBs made in a fabrication house...... The bare minimum requirement to get a single sided copper PCB will be to provide 4 files. 1. ONE copper bottom layer as a gerber file. 2. ONE solder mask file...also called RESIST file..... which defines where to have holes in the solder mask epoxy to expose cope to solder to. Note that some fab houses will accept a drill file that tells where to put those solder mask holes while other fab houses will only accept a gerber file for a maks file. 3. ONE EXCELLON format drill file which says where to poke holes in the PCB 4. ONE boarder outline gerber file that says how to slice the PCB to the correct size. ? ALL OTHER files can be omitted. They don't care if you have a silk screen to print on the top or the bottom.
Here is a perfect example of that minimalist file
set...zipped and send to OSHPARK that they created these two images then delivered the PCBs so..... all I am saying here is that if you have to reverse engineer a schematic and you get as far as a schematic...... you really don't need the silk screen artwork to get more PCBs made. Have fun. I did. Rob KB3BYT On 01/05/2020 09:09 PM, Dave wrote:
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Re: Are these sufficient files to have boards made in China please?
Chris:
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? I took a quick look.? Looks like some Gerber files are missing. KICAD makes the Gerber files from the pcb file. You will need the following Gerber files to have the boards maade. Top Copper Bottom Copper Top Solder resist Bottom Solder resist Top silkscreen Bottom Silkscreen if you have silkscreen on the bottom Board Outline Drill file Dave - WB6DHW On 1/5/2020 1:51 PM, Chris Wilson wrote:
05 January 2020 |
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Re: Are these sufficient files to have boards made in China please?
开云体育Go to the PC board fab site, and then see what their requirements are, which files they want, and so on. Take the files you have, hopefully produced by a CAM program, and zip them.? submit those files as if you were going to make a board.? If you can see everything you're supposed to see, then you've got the files.? There's also gerber viewer programs available. If you don't have the files produced by the CAM program, then take the original kicad files, and run them through Kicad's CAM program.? Most pcboard houses that accept gerbers generally have a script you can use to make boards to their satisfaction.? SeeedStudio, for instance, accepts gerbers, and has downloadable programs for EAGLE (which I use) and Kicad, which I have yet to use. Harvey
On 1/5/2020 6:26 PM, Jan Kok wrote:
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Re: Are these sufficient files to have boards made in China please?
The zip file contains files with "kicad" in their names. Presumably they were made with the Kicad PCB design package. I'm not familiar enough with Kicad to say if the files are good and sufficient. If you don't get an answer here, you can try at?[email protected], along with some recommendations for PCB makers that can accept Kicad files. On Sun, Jan 5, 2020 at 2:51 PM Chris Wilson <chris@...> wrote: 05 January 2020 |
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Are these sufficient files to have boards made in China please?
05 January 2020
I had 100 boards made for me in the UK and part of the deal is was I got the "files" to keep. I am running low on stock and the company that did them is no longer trading. Could someone kindly tell me if the files in the link below are sufficient to have another batch made, and which do I need and who could I use? They are through hole boards and I just want bare boards. Thanks. -- Best regards, Chris mailto:chris@... |
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Re: OT: Anodizing aluminium ...
开云体育the sodium hydroxide is both a surface cleaner and acts as an
electrolytic cavitator in the process.
On 12/8/2019 9:08 PM, Tony Smith wrote:
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Re: OT: Anodizing aluminium ...
开云体育NaOH (Sodium hydroxide aka lye aka drain cleaner) is mainly used to degrease the part, gets that last bit of crap off. ? It’ll strip the oxide layer off as well, and giving the part a slight etch probably isn’t a bad idea.? It’ll eat the part completely if left in too long – try it with a drink can.? You wind up with the plastic layer. ? Tony ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Steven Greenfield AE7HD via Groups.Io
Sent: Monday, 9 December 2019 10:35 AM To: [email protected] Subject: Re: [homebrewpcbs] OT: Anodizing aluminium ... ? Did you click on the links? NaOH is just part of the process. On 04/12/2019 16:18, Dave wrote: I don't think NaOH would work - some people use it to etch the aluminium prior to anodizing (gives a better finish seemingly)? but you need an acid for the actual anodizing.
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Re: OT: Anodizing aluminium ...
Did you click on the links? NaOH is just part of the process.
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On 04/12/2019 16:18, Dave wrote:
I don't think NaOH would work - some people use it to etch the aluminium prior to anodizing (gives a better finish seemingly)? but you need an acid for the actual anodizing. -- Steven Greenfield AE7HD |
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Re: Microscopes for SMD soldering etc
开云体育Hi Tron, ? Well, I ordered the kit from Whizoo so I may be asking some questions later when it's time to run it. Mainly profile info if you have any on various solder. If you just use the datasheet I can find that info, but any tweaks or tips and tricks will be useful. No rush as I will be figuring out the SMD circuit board layout at first and may even have to design a macro for a micro USB port. Thanks, Dave On 10/31/2019 10:57 PM, tron eee wrote:
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Re: OT: Anodizing aluminium ...
开云体育On 04/12/2019 16:18, Dave wrote: I don't think NaOH would work - some people use it to etch the
aluminium prior to anodizing (gives a better finish seemingly)?
but you need an acid for the actual anodizing. I'm told that sodium bisulfate behaves like sulphuric acid when
in solution under electrolysis. I have no experience at all in this, I am NO chemist (well just
what I remember from "O Level" chemistry way back in 1964 !!). Dave
Steven, |
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Re: OT: Anodizing aluminium ...
开云体育Because idiots kept on throwing it into people’s faces. It was happening roughly twice per day in 2016/7 according to wiki.
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Re: OT: Anodizing aluminium ...
开云体育A knee jerk reaction to some acid
attacks. You need a license to purchase over 15% concentration
unless it is in a battery. You can get up to 2 years in jail for
possessing or selling the stuff without a license.
To get a license you have to pay (of
course), get a doctor's report and have a clean record with the
police.? If you have had any mental illness or depression in the
last 10 years forget about getting a license.
Les
On 03/12/2019 19:35, Doug Pfaff via
Groups.Io wrote:
Why on earth can't you buy sulphuric acid in the UK? |
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Re: OT: Anodizing aluminium ...
Why on earth can't you buy sulphuric acid in the UK?
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Doug?
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