Re: Tinning Boards
I fear, krylon is cynoacrelic spay, like conformal coat.
If so,it might be difficult to remove at pad locations for soldering.
A brush up with thinner might just be sufficient, i
By
MVS Sarma
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#36185
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Re: Tinning Boards
I use a matte clear Krylon spray paint to keep good in storage. Keeps traces perfect copper till ready to solder. One can will go a long ways.
By
Kevin Byrne
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#36184
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Re: Tinning Boards
Hello Sarmaji and friends,
It is made by dissolving shellac in ethyl alcohol (spirit). It is a well
known process that some of the Carpenters are making it locally also.
This shellac like substance is
By
Ameer Khan
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#36183
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Re: Tinning Boards
The material used for French polish is shellac dissolved in ethanol (denatured or straight.) "Shellac is a resin secreted by the female lac bug, on trees in the forests of India and Thailand."
By
Donald H Locker
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#36182
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Re: Tinning Boards
Great news amir khan jee.
We can use neutral color
As nail polish, it would be costly. But as a lab chemical once we know the
combination, it gets daam cheaper. I suppose it is polyester dissolved
By
MVS Sarma
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#36181
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Re: Tinning Boards
Hello friends
You can use French polish coating over PCB. It will prevent oxidation and
when soldering its layer will melt and act as a solder flux. I have
successfully tried it and the PCB will
By
Ameer Khan
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#36180
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Re: Tinning Boards
Hi Rob,
I generally hide etched pcb in side a polythene cover and seal it off, till
i use it. Shining is ever retained. If we can finish soldering fadt,
perhaps protective spray could hep us to
By
MVS Sarma
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#36179
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Re: Tinning Boards
IS plain enamel nail polish sufficient to prevent oxidation?
Re:After all we need to prevent oxidation of copper surface.
and
just curious.... how long can a PCB project? be left unprotected and
By
Rob
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#36178
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Re: Tinning Boards
Yes Peter,
things are getting costly. If we can access any tin rod or a lump, perhaps
we can try tin electro plating. The industry adopts roller tinning but at
home , it nay not be
By
MVS Sarma
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#36177
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Tinning Boards
I know its being a while since I bought liquid tin, but it seems to be quite expensive these days. Is there a less expensive alternative out there? What does everyone else do? Tin or leave the copper
By
Peter Ayearst <ve3poa@...>
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#36176
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Re: ALLPCB may not want hobby PCB business
Definitely would like to see the gerbers where those shorts happened....
and learn what clearance error sizing is the correct way to design PCBs.
One thing I noticed when I moved from hand crafting
By
Rob
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#36175
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Re: ALLPCB may not want hobby PCB business
It was not my board however I do have the gerbers and they pass a 6/6 DRC.
I personally leave bigger spaces on inner layers if I can.
The three shorts spotted so far are also on different nets on
By
cunningfellow
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#36174
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Re: ALLPCB may not want hobby PCB business
Would be interesting if there is a clearance error in the files that makes
for a marginal design.
ST
wrote:
By
stefan_trethan <stefan_trethan@...>
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#36173
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Re: ALLPCB may not want hobby PCB business
Timely that a conversation about AllPCB has just come up.
I am actually using JLCPCB for my hobby stuff at the moment. JLCCPB completely screwed one of my boards from the last batch with a giant
By
cunningfellow
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#36172
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Re: ALLPCB may not want hobby PCB business
Good to hear......
Thats encouraging.
By
Rob
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#36171
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Re: ALLPCB may not want hobby PCB business
Hi there.
I've been dealing with ALLPCB for some while now - more than two dozen orders since December 2016. Some orders are a single board number but most are two or more different boards in each
By
Dwayne Reid
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#36170
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Re: can anyone make a 3 component example in DIPTRACE
https://www.youtube.com/results?search_query=generate+gerbers
By
Lee Studley
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#36169
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Re: can anyone make a 3 component example in DIPTRACE
https://www.youtube.com/watch?v=gtiwsUIXDcM
wrote:
By
Lee Studley
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#36168
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Re: ALLPCB may not want hobby PCB business
Your files look a bit weird and non-standard, that's probably what threw
them.
I don't personally think you wanted anything particularly difficult, just
the opposite, but it doesn't look like the
By
stefan_trethan <stefan_trethan@...>
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#36167
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ALLPCB may not want hobby PCB business
was?? [homebrewpcbs] can anyone make a 3 component example in DIPTRACE
I made gerber and drill files and
I followed the naming convention rules.
and then
I displayed my gerber files in GERBV on
By
Rob
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#36166
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